Re: Switching
I used the Cisco Press Building Cisco Multilayer Switched Networks and passed. Manny [EMAIL PROTECTED] wrote: > Anyone have any suggestions on books to read for switching exam? > > -- > Get the Latest News at CNN Interactive: http://CNN.com > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching
I am studying for the BCMSN and I think that is a good book to recommend but you will need more. The objectives on Cisco's website include ATM - there is no ATM in Cisco's book anywhere. Tim LeBrun CCNA, CCDA [EMAIL PROTECTED] -Original Message- From: Manny Colon [mailto:[EMAIL PROTECTED]] Sent: Tuesday, March 13, 2001 11:13 PM To: [EMAIL PROTECTED] Subject: Re: Switching I used the Cisco Press Building Cisco Multilayer Switched Networks and passed. Manny [EMAIL PROTECTED] wrote: > Anyone have any suggestions on books to read for switching exam? > > -- > Get the Latest News at CNN Interactive: http://CNN.com > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching
I didn't have any ATM and never heard anyone else mention anything about ATM being on BCMSN. Tim > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > LeBrun, Tim > Sent: Wednesday, March 14, 2001 4:02 PM > To: [EMAIL PROTECTED] > Subject: RE: Switching > > > I am studying for the BCMSN and I think that is a good book to > recommend but > you will need more. The objectives on Cisco's website include ATM - there > is no ATM in Cisco's book anywhere. > > Tim LeBrun > CCNA, CCDA > [EMAIL PROTECTED] > > > -Original Message- > From: Manny Colon [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, March 13, 2001 11:13 PM > To: [EMAIL PROTECTED] > Subject: Re: Switching > > > I used the Cisco Press Building Cisco Multilayer Switched Networks and > passed. > > Manny > > [EMAIL PROTECTED] wrote: > > > Anyone have any suggestions on books to read for switching exam? > > > > -- > > Get the Latest News at CNN Interactive: http://CNN.com > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching exam
I used cisco lan switching. read the dense and sparse mode... and the conversion of multicast ip to its layer 2 address Fears Michael S SSgt 18 CS/SCBT <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > I'm taking the switching exam soon. I've read the BCMSN courseware book and > have lots of hands-on experience. However, I have not done any multicast > configurations in the real world. Is multicasting hit pretty hard on the > exam? Anyone have any good references for the subject? Thanks, Fears > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching exam
I would suggest getting your hands on the Switching Exam Cram book. I used the BCMSN and this to prepare for mine. I found this book excellent for the last week of craming before the exam. It's a more relaxed text and puts all the pieces of the puzzle together nicely before the test. Good luck on the test and let us know how you do. =o) --- This has been an Eyez Only streaming e-mail broadcast...We are watching. ~ NetEyez --- - Original Message - From: Kenneth <[EMAIL PROTECTED]> Newsgroups: groupstudy.cisco To: <[EMAIL PROTECTED]> Sent: Sunday, February 11, 2001 11:25 PM Subject: Re: Switching exam > I used cisco lan switching. > > read the dense and sparse mode... and the conversion of multicast ip to its > layer 2 address > > Fears Michael S SSgt 18 CS/SCBT <[EMAIL PROTECTED]> wrote in > message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > I'm taking the switching exam soon. I've read the BCMSN courseware book > and > > have lots of hands-on experience. However, I have not done any multicast > > configurations in the real world. Is multicasting hit pretty hard on the > > exam? Anyone have any good references for the subject? Thanks, Fears > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching exam
I have just passed the Switching exam today. Yes, there are about 10 questions (of 64) - conceptual or CGMP related. I've got the lowest scores on these sections (CGMP and multicast). Fears Michael S SSgt 18 CS/SCBT wrote: > > I'm taking the switching exam soon. I've read the BCMSN courseware book and > have lots of hands-on experience. However, I have not done any multicast > configurations in the real world. Is multicasting hit pretty hard on the > exam? Anyone have any good references for the subject? Thanks, Fears > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] -- Mihai Dumitru Systems Engineer, ROMSYS SA tel: +40 1 2300810, mobile: +40 92 764287 fax: +40 1 2300815 _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: switching types
Are there other benchmarks for ACLs? I'm revisiting my config and want it just so... --- Brian Lodwick <[EMAIL PROTECTED]> wrote: > I really enjoyed this link and appreciate your reply, for everyone > else read > through this article this link goes for a nice look at different > switching > types. > http://www.nwc.com/1004/1004ws2.html > > > >From: "Howard C. Berkowitz" <[EMAIL PROTECTED]> > >Reply-To: "Howard C. Berkowitz" <[EMAIL PROTECTED]> > >To: [EMAIL PROTECTED] > >Subject: Re: BPX going out of style? > >Date: Wed, 14 Feb 2001 10:30:27 -0500 > > > > >John Nemeth said, > > > > > > >On Jul 6, 1:28pm, "Brian Lodwick" wrote: > > >} > > >} I have heard many tales of how ATM will explode soon, will be > >partenered > > >} perfectly with DSL, and everyone will implement it, but I just > haven't > >seen > > >} it. I like the idea of improving technologies your engineering > and > >support > > >} staff are familiar with (Not counting new technology with old > names > >like > > >} IPv6). I hope this is able to work out, and isn't too far down > the > >road. > > > > > > IPv6 is coming. There are just too many shortcomings in > IPv4 that > > >can't be solved using hacks. The biggest being the lack of > address > > >space. It really isn't a question of "if" but rather "when". > > > >Some of the "killer apps" that have moved IPv6 into high gear > include > >the decision by the third generation wireless people to use V6 as > >their basic protocol, which, as we speak, is being built into > >handsets. > > > > > > > >} Is there any talk of using smaller tags in IP to create big > pipes > >similar to > > >} ATM's VCI's so that you could lower the ip address & > mask-lookup > >processor > > >} overhead on backbone IP routers? I think this would be a neat > idea. > >Even > > > > > > You've just described MPLS. > > > > > >} though the CAM table is fast the router must still read the > entire > >address > > >} and mask. Small pipe identifiers could be inserted into the ip > header > >and > > >} extracted at the gateways and lookup would be lowered. Like > xtags on > >VLANS. > > > > > > IP headers are only 20 bytes and aren't much of a problem. > The > > >real problem is with compression, encryption, access lists, etc. > Check > > >out this URL for a study on what happens when access lists are > used: > > >http://www.nwc.com/1004/1004ws2.html > > > > > >}-- End of excerpt from "Brian Lodwick" > > > >_ > >FAQ, list archives, and subscription info: > >http://www.groupstudy.com/list/cisco.html > >Report misconduct and Nondisclosure violations to > [EMAIL PROTECTED] > > _ > Get your FREE download of MSN Explorer at http://explorer.msn.com > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: switching types
>Are there other benchmarks for ACLs? I'm revisiting my config and >want it just so... I think the Tolly Group has some. > > > >--- Brian Lodwick <[EMAIL PROTECTED]> wrote: >> I really enjoyed this link and appreciate your reply, for everyone >> else read >> through this article this link goes for a nice look at different >> switching >> types. >> http://www.nwc.com/1004/1004ws2.html >> >> >> >From: "Howard C. Berkowitz" <[EMAIL PROTECTED]> >> >Reply-To: "Howard C. Berkowitz" <[EMAIL PROTECTED]> >> >To: [EMAIL PROTECTED] >> >Subject: Re: BPX going out of style? >> >Date: Wed, 14 Feb 2001 10:30:27 -0500 >> > >> > >John Nemeth said, >> > >> > >> > >On Jul 6, 1:28pm, "Brian Lodwick" wrote: >> > >} >> > >} I have heard many tales of how ATM will explode soon, will be >> >partenered >> > >} perfectly with DSL, and everyone will implement it, but I just >> haven't >> >seen >> > >} it. I like the idea of improving technologies your engineering >> and >> >support >> > >} staff are familiar with (Not counting new technology with old >> names >> >like >> > >} IPv6). I hope this is able to work out, and isn't too far down >> the >> >road. >> > > >> > > IPv6 is coming. There are just too many shortcomings in >> IPv4 that >> > >can't be solved using hacks. The biggest being the lack of >> address >> > >space. It really isn't a question of "if" but rather "when". >> > >> >Some of the "killer apps" that have moved IPv6 into high gear >> include >> >the decision by the third generation wireless people to use V6 as >> >their basic protocol, which, as we speak, is being built into >> >handsets. >> > >> > > >> > >} Is there any talk of using smaller tags in IP to create big >> pipes >> >similar to >> > >} ATM's VCI's so that you could lower the ip address & >> mask-lookup >> >processor >> > >} overhead on backbone IP routers? I think this would be a neat >> idea. >> >Even >> > > >> > > You've just described MPLS. >> > > >> > >} though the CAM table is fast the router must still read the >> entire >> >address >> > >} and mask. Small pipe identifiers could be inserted into the ip >> header >> >and >> > >} extracted at the gateways and lookup would be lowered. Like >> xtags on >> >VLANS. >> > > >> > > IP headers are only 20 bytes and aren't much of a problem. >> The >> > >real problem is with compression, encryption, access lists, etc. >> Check >> > >out this URL for a study on what happens when access lists are >> used: >> > >http://www.nwc.com/1004/1004ws2.html >> > > >> > >}-- End of excerpt from "Brian Lodwick" >> > >> >_ >> >FAQ, list archives, and subscription info: >> >http://www.groupstudy.com/list/cisco.html >> >Report misconduct and Nondisclosure violations to >> [EMAIL PROTECTED] >> >> _ >> Get your FREE download of MSN Explorer at http://explorer.msn.com >> >> _ >> FAQ, list archives, and subscription info: >> http://www.groupstudy.com/list/cisco.html >> Report misconduct and Nondisclosure violations to >[EMAIL PROTECTED] > > >__ >Do You Yahoo!? >Get personalized email addresses from Yahoo! Mail - only $35 >a year! http://personal.mail.yahoo.com/ > >_ >FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching types!!
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Re: Switching types!!
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Re: Switching types!!
Oh, well... Back to the drawling board. I will put the old software back on. Paul - Original Message - From: "Priscilla Oppenheimer" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; "Paul Borghese" <[EMAIL PROTECTED]> Sent: Monday, March 05, 2001 8:23 PM Subject: Re: Switching types!! > Paul, > > This might be your first bug report. I spent a lot of time on a message > talking about switching types. It came out with nothing in it. > > Priscilla > > At 04:59 PM 3/5/01, Priscilla Oppenheimer wrote: > >_ > >FAQ, list archives, and subscription info: > >http://www.groupstudy.com/list/cisco.html > >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > Priscilla Oppenheimer > http://www.priscilla.com > > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching types!!
You should know about the different switching types a router can handle for the CIT test and for the real world and possibly other exams too. Below is a copy and paste from Chapter 12 of Top-Down Network Design. The chapter covers optimizing your network design. One of the major jobs of a router is to switch packets from incoming interfaces to outgoing interfaces. Switching involves receiving a packet, determining how to forward the packet based on the routing topology and QoS and policy requirements, and switching the packet to the right outgoing interface or interfaces. The speed at which a router can perform this task is a major factor in determining network performance in a routed network. Cisco supports many switching methods, with varying speeds and behaviors. In general, you should use the fastest switching method available for an interface type and protocol, (though there are some exceptions to this guideline.) Using a speedy switching mode is especially important on backbone and core enterprise routers. Depending on the version of IOS software you are running, the fastest mode might need to be configured. (It is not always the default.) Below are some of the details on the switching types. Process switching is the slowest of the switching methods. With process switching, when a packet arrives at an interface, the system processor is interrupted for the time it takes to copy the packet from the interface buffer to system memory. The processor looks up the Layer-3 destination address for the packet in the routing table to determine the exit interface. The packet is rewritten with the correct header for that interface and copied to the interface. At this time, an entry is also placed in the fast-switching cache so that subsequent packets for the destination address can use the same header. The first packet to a destination is always process switched. Fast switching allows higher throughput by switching a packet using an entry in the fast-switching cache that was created when a previous packet to the same destination was processed. With fast switching, a packet is handled immediately, without scheduling an interrupt of the system processor. Autonomous switching is available on Cisco 7000-series routers and uses an autonomous-switching cache located on interface processors. Autonomous switching provides faster packet switching by allowing the ciscoBus controller to switch packets independently, without having to interrupt the system processor. Silicon switching is similar to autonomous switching, but speeds up autonomous switching through the use of a silicon-switching cache located on the Silicon Switch Processor (SSP) on some Cisco 7000-series routers. Optimum switching is similar to fast switching, but is faster, due to an enhanced caching algorithm, and the optimized structure of the optimum-switching cache. Optimum switching is only available on routers equipped with a Route/Switch Processor (RSP). Distributed switching is supported on routers that include Versatile Interface Processor (VIP) cards or other interface cards that can receive route information from the master RSP to make their own autonomous, multilayer switching decisions. Distributed switching supports very fast throughput because the switching process occurs on the interface card. NetFlow switching is a relatively new switching mode that is optimized for environments where services must be applied to packets to implement security, QoS features, and traffic accounting. An example of such an environment is the boundary between an enterprise network and the Internet. NetFlow switching identifies traffic flows between hosts, and then quickly switches packets in these flows at the same time that it applies services. NetFlow switching also lets a network manager collect data on network usage to enable capacity planning and bill users based on network and application resource utilization. The data can be collected without slowing down the switching process. To maximize network scalability, a good design practice is to use NetFlow switching on the periphery of a network to enable features such as traffic accounting, QoS functionality, and security, and to use an even faster switching mode in the core of the network. At the core of the network, the switching mode should forward packets based on easily-accessible information in the packet, and generally should not spend time applying services. Hope this helps. Priscilla At 06:44 PM 3/4/01, suaveguru wrote: >hi all, > >while studying for the support exam I came across >Silicon switching, netflow switching , silicon >switching , Automonous switching , process switching >etc. > >I am confused by so many switching types and what >routers support them > >anyone can give me a quick brief overview and what it >will be tested on in the exam > >thanks > >suaveguru > > >__ >Do You Yahoo!
Re: Switching types!!
thank you priscilla for your kindness thanks a million regards, suaveguru --- Priscilla Oppenheimer <[EMAIL PROTECTED]> wrote: > You should know about the different switching types > a router can handle for > the CIT test and for the real world and possibly > other exams too. Below is > a copy and paste from Chapter 12 of Top-Down Network > Design. The chapter > covers optimizing your network design. > > One of the major jobs of a router is to switch > packets from incoming > interfaces to outgoing interfaces. Switching > involves receiving a packet, > determining how to forward the packet based on the > routing topology and QoS > and policy requirements, and switching the packet to > the right outgoing > interface or interfaces. The speed at which a router > can perform this task > is a major factor in determining network performance > in a routed network. > Cisco supports many switching methods, with varying > speeds and behaviors. > > In general, you should use the fastest switching > method available for an > interface type and protocol, (though there are some > exceptions to this > guideline.) Using a speedy switching mode is > especially important on > backbone and core enterprise routers. Depending on > the version of IOS > software you are running, the fastest mode might > need to be configured. (It > is not always the default.) > > Below are some of the details on the switching > types. > > Process switching is the slowest of the switching > methods. With process > switching, when a packet arrives at an interface, > the system processor is > interrupted for the time it takes to copy the packet > from the interface > buffer to system memory. The processor looks up the > Layer-3 destination > address for the packet in the routing table to > determine the exit > interface. The packet is rewritten with the correct > header for that > interface and copied to the interface. At this time, > an entry is also > placed in the fast-switching cache so that > subsequent packets for the > destination address can use the same header. The > first packet to a > destination is always process switched. > > Fast switching allows higher throughput by switching > a packet using an > entry in the fast-switching cache that was created > when a previous packet > to the same destination was processed. With fast > switching, a packet is > handled immediately, without scheduling an interrupt > of the system processor. > > Autonomous switching is available on Cisco > 7000-series routers and uses an > autonomous-switching cache located on interface > processors. Autonomous > switching provides faster packet switching by > allowing the ciscoBus > controller to switch packets independently, without > having to interrupt the > system processor. > > Silicon switching is similar to autonomous > switching, but speeds up > autonomous switching through the use of a > silicon-switching cache located > on the Silicon Switch Processor (SSP) on some Cisco > 7000-series routers. > > Optimum switching is similar to fast switching, but > is faster, due to an > enhanced caching algorithm, and the optimized > structure of the > optimum-switching cache. Optimum switching is only > available on routers > equipped with a Route/Switch Processor (RSP). > > Distributed switching is supported on routers that > include Versatile > Interface Processor (VIP) cards or other interface > cards that can receive > route information from the master RSP to make their > own autonomous, > multilayer switching decisions. Distributed > switching supports very fast > throughput because the switching process occurs on > the interface card. > > NetFlow switching is a relatively new switching mode > that is optimized for > environments where services must be applied to > packets to implement > security, QoS features, and traffic accounting. An > example of such an > environment is the boundary between an enterprise > network and the Internet. > NetFlow switching identifies traffic flows between > hosts, and then quickly > switches packets in these flows at the same time > that it applies services. > NetFlow switching also lets a network manager > collect data on network usage > to enable capacity planning and bill users based on > network and application > resource utilization. The data can be collected > without slowing down the > switching process. > To maximize network scalability, a good design > practice is to use NetFlow > switching on the periphery of a network to enable > features such as traffic > accounting, QoS functionality, and security, and to > use an even faster > switching mode in the core of the network. At the > core of the network, the > switching mode should forward packets based on > easily-accessible > information in the packet, and generally should not > spend time applying > services. > > Hope this helps. > > Priscilla > > At 06:44 PM 3/4/01, suaveguru wrote: > >hi all, > >
RE: Switching Question
It maps ALL MAC addresses learned on that port to that port. Not just one. -Original Message- From: Ken W. Alger [mailto:[EMAIL PROTECTED]] Sent: Thursday, December 21, 2000 3:53 PM To: [EMAIL PROTECTED] Subject: Switching Question My understanding of how most switches work is that one port is mapped to one MAC address, correct? If this is indeed true, what happens when you attach a hub to a switch port? I know that it is still functional, but what does the switch do for the additional hub MAC addresses that are hanging off of the switch port? Thanks, Ken _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching Question
It learns all Mac Addresses originating from the hub to that port. It works the same for uplink to another switch. "Ken W. Alger" <[EMAIL PROTECTED]> wrote in message 91u20s$pk9$[EMAIL PROTECTED]">news:91u20s$pk9$[EMAIL PROTECTED]... > My understanding of how most switches work is that one port is mapped to one > MAC address, correct? If this is indeed true, what happens when you attach > a hub to a switch port? I know that it is still functional, but what does > the switch do for the additional hub MAC addresses that are hanging off of > the switch port? > > Thanks, > Ken > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching Question
Please be aware (even though I am in my Christmas drinks) the not all switches behave the same. Some switch ports will only handle one (1) MAC address. These will only ever talk to the first port that comes up on them. Merry Christmas and or festive season to all. Teunis Hobart, Tasmania Australia On Thursday, December 21, 2000 at 09:40:17 PM, Kenneth Lorenzo wrote: > It learns all Mac Addresses originating from the hub to that port. It works > the same for uplink to another switch. > > "Ken W. Alger" <[EMAIL PROTECTED]> wrote in message > 91u20s$pk9$[EMAIL PROTECTED]">news:91u20s$pk9$[EMAIL PROTECTED]... > > My understanding of how most switches work is that one port is mapped to > one > > MAC address, correct? If this is indeed true, what happens when you > attach > > a hub to a switch port? I know that it is still functional, but what does > > the switch do for the additional hub MAC addresses that are hanging off of > > the switch port? > > > > Thanks, > > Ken > > > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > -- www.tasmail.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching Question
"Ken W. Alger" wrote: > > My understanding of how most switches work is that one port is mapped to one > MAC address, correct? If this is indeed true, what happens when you attach > a hub to a switch port? I know that it is still functional, but what does > the switch do for the additional hub MAC addresses that are hanging off of > the switch port? If no port security is set, it learns the additional MACs. If you have a 'network port' unknown MACs are sent there. Else packets with strange MACs are flooded. Jeff Kell <[EMAIL PROTECTED]> _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: SWITCHING outline
You can follow the link from my CCNP site: http://www.oledrews.com/ccnp There are also info about the other exams... Hth, Ole Ole Drews Jensen Systems Network Manager CCNA, MCSE, MCP+I RWR Enterprises, Inc. [EMAIL PROTECTED] http://www.oledrews.com/ccnp -Original Message- From: Francisco Muniz [mailto:[EMAIL PROTECTED]] Sent: Monday, September 25, 2000 11:18 AM To: [EMAIL PROTECTED] Subject: SWITCHING outline Would anyone be so kind of sending me the index of the switching course? . I've read CCIE LAN Switching, and I'd like to know what should I concentrate on. I'm taking Foundation next week and I tend to think the index is a lot more reliable outline of the test. Thank you! Francisco Muniz. **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching objectives..
Yes, there are a few questions on them. Dinesh B wrote: > Hi.. > > I am scheduled to take my Switching 2.0 exam on 16th of this month. When I > looked at the objectives that cisco have for the exam, it also included > ATM, LANE etc..But, the Karen Webb book doesn't have any ATM chapters in > it. Also from the previous listings I didn't find anyone mentioning abt > coming across ATM in the test. I would not like to attend the test without > myself preparing completely. Is ATM included or not? If so, where can I > find the material for this? > > Thanks > > Dinesh. > > __ > Do You Yahoo!? > Yahoo! Photos - 35mm Quality Prints, Now Get 15 Free! > http://photos.yahoo.com/ > > **NOTE: New CCNA/CCDA List has been formed. For more information go to > http://www.groupstudy.com/list/Associates.html > _ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] -- == Apoorva S.Malavia Site Engineer CCNA SiteSmith Inc. - www.sitesmith.com Office - 212.675.9300 x243 ICCC - 888.898.7667 == **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching objectives..
There are a few chapters on ATM (and LANE & MPOA) in LAN Switching by Kennedy Clark. ISBN 1578700949 Alternatively... http://www.cisco.com/pcgi-bin/Support/PSP/psp_view.pl?p=Internetworking:ATM:LANE http://www.cisco.com/pcgi-bin/Support/PSP/psp_view.pl?p=Internetworking:ATM:ATM_General http://www.cisco.com/univercd/cc/td/doc/product/atm/ls1010s/wa5/12/8_17b/atg/lane.htm http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/12cgcr/switch_c/xcprt7/xcmpoa.htm http://www.cisco.com/pcgi-bin/Support/PSP/psp_view.pl?p=Internetworking:ATM:IP_ATM The best choice is probably the book since you have all of the info together in one place, it's easy to read, and makes a good reference afterwards. You probably don't need to know it as in-depth as the book presents it but that is probably to your benefit. Karen E Young ELF Technologies, Inc [EMAIL PROTECTED] Dinesh B cc: Sent by: Subject: Switching objectives.. nobody@groups tudy.com 10/02/2000 12:19 PM Please respond to Dinesh B Hi.. I am scheduled to take my Switching 2.0 exam on 16th of this month. When I looked at the objectives that cisco have for the exam, it also included ATM, LANE etc..But, the Karen Webb book doesn't have any ATM chapters in it. Also from the previous listings I didn't find anyone mentioning abt coming across ATM in the test. I would not like to attend the test without myself preparing completely. Is ATM included or not? If so, where can I find the material for this? Thanks Dinesh. __ Do You Yahoo!? Yahoo! Photos - 35mm Quality Prints, Now Get 15 Free! http://photos.yahoo.com/ **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching 2.0
I know that it was covered in 1.0 but I believe it is not covered in 2.0. "Roberto Omori" <[EMAIL PROTECTED]> wrote in message 001001c03aba$25886e00$f20310ac@cpm4962">news:001001c03aba$25886e00$f20310ac@cpm4962... hello, I'm preparing to take Switching 2.0 exam. I would like to know if ATM(LANE) is part of this exam. tks in advance, Roberto Omori
Re: Switching 2.0
Thank you! Constance Cate <[EMAIL PROTECTED]> wrote in message news:<8svqfj$3a5$[EMAIL PROTECTED]>... Todo brasileiro tem direito a um e-mail gratis http://www.bol.com.br I know that it was covered in 1.0 but I believe it is not covered in 2.0. "Roberto Omori" <[EMAIL PROTECTED]> wrote in message 001001c03aba$25886e00$f20310ac@cpm4962">news:001001c03aba$25886e00$f20310ac@cpm4962... hello, I'm preparing to take Switching 2.0 exam. I would like to know if ATM(LANE) is part of this exam. tks in advance, Roberto Omori -- _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching question's
1:Yes, this can be done, but you need a router to route between the 5 vlans 2: Yes, you should set the speed on switch B to the same speed as switch a (100Mbps Half duplex) Taco Hettema CCDP CCNP -Original Message- From: Crash [mailto:[EMAIL PROTECTED]] Sent: Wednesday, November 08, 2000 12:23 PM To: [EMAIL PROTECTED] Subject: Switching question's Need a suggestion. 1. Can this be done.. logically segment the network by assigning VLANs to the switch ports that the 5 hubs (existing hardware) are connected to a switch. Cost is also an issue here. 2. Switch A, port speed can only be set to half duplex for either 10 or 100 Mbps, a known issue with this particular hardware and the client is not able to change it even with the manufacturers recommendation. Switch B, is a new switch that is configurable to go half or full duplex on the port speed. Switch B is uplinked to switch A. Switch B's port speed is set at 100 Full duplex with autonegotiation turned off. The connectivity is slow, should the port speed on switch B change to half duplex as it is on switch A until the problem with the port speed on switch A is fixed. -- _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching question's
for #1 you need to determine if your head switch supports vlans. Then if you create a vlan for each port that a hub is plugged into then each hub would be its own network. But in the absence of routing of some kind, I don't see the benefit. I guess you could use any remaining ports on the head switch for host systems and you could move them into different vlans as needed for #2 the duplex setting on both switches should match, so if switch A only supports half duplex then switch B should be set for half also. daveh -Original Message- From: Crash [mailto:[EMAIL PROTECTED]] Sent: Wednesday, November 08, 2000 6:23 AM To: [EMAIL PROTECTED] Subject: Switching question's Need a suggestion. 1. Can this be done.. logically segment the network by assigning VLANs to the switch ports that the 5 hubs (existing hardware) are connected to a switch. Cost is also an issue here. 2. Switch A, port speed can only be set to half duplex for either 10 or 100 Mbps, a known issue with this particular hardware and the client is not able to change it even with the manufacturers recommendation. Switch B, is a new switch that is configurable to go half or full duplex on the port speed. Switch B is uplinked to switch A. Switch B's port speed is set at 100 Full duplex with autonegotiation turned off. The connectivity is slow, should the port speed on switch B change to half duplex as it is on switch A until the problem with the port speed on switch A is fixed. -- _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching Book
Cisco LAN Switching by Clark and Hamilton. Very clear, very thorough. > -Original Message- > From: LaVillie Tate [mailto:[EMAIL PROTECTED]] > Sent: Monday, April 09, 2001 8:53 AM > To: [EMAIL PROTECTED] > Subject: Switching Book > > > Hi all, > > Which switching book would you recommend I use to > assist me in setting up the new switches I have > coming. I'll be using two 4006's as the backbone and > 3508's, 3524's, and 3548's as my switches. Any > insight anyone can lend is appreciated. > > Thanks in advance for your assistance. > > __ > Do You Yahoo!? > Get email at your own domain with Yahoo! Mail. > http://personal.mail.yahoo.com/ > Report misconduct > and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching 2.0
i am interested too!!! "wind" <[EMAIL PROTECTED]> wrote in message 8gj1gt$89i$[EMAIL PROTECTED]">news:8gj1gt$89i$[EMAIL PROTECTED]... > Hi; > > Anyone has the following exam information, please inform me. > Thanks > Vincent > > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > --- ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: SWITCHING 2.0
The exam doesn't cover specifics about any of hardware. You just need to know what device you should use at what layer (Core, Distribution, or Access) in a given situation. ""vevenkatasubramanian kandasamy"" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > hi ! > i am planning to give the switching exam next month.i have gone thru > Cisco Lan switching book from cisco press.I dont know the structure of the > exam ,whether it covers all cisco switches like 8500.please guide me in > this.thank u . > > vs > > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > --- ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching 2.0
You have probably already received responses but here's my take (I'm scheduled to take this one at the end of the month). The new exam doesn't cover NEARLY as much hardware specific topics as the 1.0 exam did. For example, you won't get questions asking about how many of what type of blades a certain chassis will hold or what is the maximum amount of memory a switch can be upgraded to. Rather, this test covers the technology. Stuff like VLAN, ELAN, VTP, ISL, EtherChannel, Spanning Tree, etc. This test is supposed to be written much better as well, with little or no ambiguous questions. Me personally, I have the Sybex CLSC book, which I don't find very good (no offense Todd). I have heard nothing but rave reviews (5 stars on Amazon) about the LAN Switching Cisco Press book, which I have ordered. Of course, the best material, albeit the toughest to find and organize, comes from CCO. Good luck! Rik Guyler Principle Consultant Cardinal Solutions Group -Original Message- From: John Robert [mailto:[EMAIL PROTECTED]] Sent: Saturday, June 10, 2000 11:48 PM To: [EMAIL PROTECTED] Subject: Switching 2.0 Hi guys, I am studying Kevin Downes/Tim Boyles's CLSC book for Switching 2.0. I am taking the exam this coming Wednesday. If anybody can tell me any thing new in Switching 2.0 exam that was not covered in CLSC? I would really appreciate that. I have browsed studygroup archive but didn't find specific information for switching 2.0 exam. I also have objectives from Cisco site, but they are not so organized(just a glossary with single words), have gone to Barnes and Nobles to find book for new exam, but was in vain. Any help out there? Thank you very much for listening... John =) Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching 2.0
The CLSC Exam Cran by Coriolis is good. You may want to check it out. > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > Rik Guyler > Sent: Friday, June 16, 2000 9:19 AM > To: Cisco Groupstudy (E-mail) > Cc: John Robert > Subject: RE: Switching 2.0 > > > You have probably already received responses but here's my take (I'm > scheduled to take this one at the end of the month). > > The new exam doesn't cover NEARLY as much hardware specific topics as the > 1.0 exam did. For example, you won't get questions asking about > how many of > what type of blades a certain chassis will hold or what is the maximum > amount of memory a switch can be upgraded to. Rather, this > test covers > the technology. Stuff like VLAN, ELAN, VTP, ISL, EtherChannel, Spanning > Tree, etc. This test is supposed to be written much better as well, with > little or no ambiguous questions. > > Me personally, I have the Sybex CLSC book, which I don't find > very good (no > offense Todd). I have heard nothing but rave reviews (5 stars on Amazon) > about the LAN Switching Cisco Press book, which I have ordered. > Of course, > the best material, albeit the toughest to find and organize, > comes from CCO. > > Good luck! > > Rik Guyler > Principle Consultant > Cardinal Solutions Group > > > -Original Message- > From: John Robert [mailto:[EMAIL PROTECTED]] > Sent: Saturday, June 10, 2000 11:48 PM > To: [EMAIL PROTECTED] > Subject: Switching 2.0 > > > Hi guys, > > I am studying Kevin Downes/Tim Boyles's CLSC book for Switching > 2.0. I am > taking the exam this coming Wednesday. If anybody can tell me > any thing new > > in Switching 2.0 exam that was not covered in CLSC? I would really > appreciate that. > I have browsed studygroup archive but didn't find specific > information for > switching 2.0 exam. I also have objectives from Cisco site, but > they are not > > so organized(just a glossary with single words), have gone to Barnes and > Nobles to find book for new exam, but was in vain. Any help out there? > > Thank you very much for listening... > > John =) > > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching method help!!
Fast switching definitely has the problem you refer to. Fast switching offers per-destination load-sharing. Since the router caches information on how to forward traffic to a destination, all traffic to that destination exits the same interface. One of the goals of CEF was to overcome this problem. I can't remember the details, but I think you can do more precise load-balancing with CEF. I'll see if I can dig up more details and get back to you. Or maybe some other folks who use CEF can chime in. Priscilla At 12:31 PM 12/13/00, Adam Hickey wrote: >Hey all, > >Question: >1) On a router with multiple outbound paths, if fast switching (or CEF) = >is enabled and outbound traffic comes through towards a given = >destination, is all traffic for that same destination then locked to the = >same path untill the route cache is cleared? > >2) If the above is yes, how long does the router maintain its route = >cache? > >Purpose: >We have a 7507 that will be running BGP over 2 T1's. We are attempting = >to establish load balancing both inbound and out. Halabi (2nd Ed.) in = >Chapter 7 warns that to do this one must be familiar with the different = >methods of switching. Thus I am studying to find the pro's and cons of = >each. CEF or fast switching sounds about right, however, the above = >question was raised as I was discussing this with our lead engineer. > > >Thank You >Adam >[EMAIL PROTECTED] > >_ >FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Priscilla Oppenheimer http://www.priscilla.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching method help!!
Sometimes I answer questions to try to bring out the experts, not because I am an expert. &;-) But so far nobody has added to my comments about CEF, so I will. From my additional reading on the topic, I think it's not quite right to say that one of the goals of CEF was to overcome the per-destination load-sharing disadvantage of fast-switching. It's more correct to say that CEF was designed for a different type of network. It solves a different problem. Fast switching speeds up forwarding in a typical small-to-medium network with lots of client-server traffic. With fast switching, a router learns the exit interface for a destination and caches this information, so that the next time traffic comes in for that destination, the router can check the cache and quickly forward the traffic without a routing-table lookup. CEF, on the other hand, speeds up forwarding in large networks with dynamic traffic patterns, such as the Internet. CEF is useful for networks characterized by Web-based applications or interactive sessions, where there are numerous and ever-changing destinations. In networks with dynamic traffic patterns, fast switching cache entries change frequently. These changes can cause traffic to be process switched using the routing table, rather than fast switched using the route cache. With CEF, on the other hand, the Forwarding Information Base (FIB) lookup table contains all known routes that exist in the routing table. The FIB eliminates route cache turnover. CEF also offers full switching capacity at each line card when distributed CEF (dCEF) mode is used. See this URL for more info: http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/switch_c/xcprt2/xcdcef.htm Priscilla At 11:27 AM 12/15/00, Priscilla Oppenheimer wrote: >Fast switching definitely has the problem you refer to. Fast switching >offers per-destination load-sharing. Since the router caches information on >how to forward traffic to a destination, all traffic to that destination >exits the same interface. > >One of the goals of CEF was to overcome this problem. I can't remember the >details, but I think you can do more precise load-balancing with CEF. I'll >see if I can dig up more details and get back to you. Or maybe some other >folks who use CEF can chime in. > >Priscilla > >At 12:31 PM 12/13/00, Adam Hickey wrote: > >Hey all, > > > >Question: > >1) On a router with multiple outbound paths, if fast switching (or CEF) = > >is enabled and outbound traffic comes through towards a given = > >destination, is all traffic for that same destination then locked to the = > >same path untill the route cache is cleared? > > > >2) If the above is yes, how long does the router maintain its route = > >cache? > > > >Purpose: > >We have a 7507 that will be running BGP over 2 T1's. We are attempting = > >to establish load balancing both inbound and out. Halabi (2nd Ed.) in = > >Chapter 7 warns that to do this one must be familiar with the different = > >methods of switching. Thus I am studying to find the pro's and cons of = > >each. CEF or fast switching sounds about right, however, the above = > >question was raised as I was discussing this with our lead engineer. > > > > > >Thank You > >Adam > >[EMAIL PROTECTED] > > > >_ > >FAQ, list archives, and subscription info: > >http://www.groupstudy.com/list/cisco.html > >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > >Priscilla Oppenheimer >http://www.priscilla.com > >_ >FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Priscilla Oppenheimer http://www.priscilla.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching method help!!
Hi, I understand yes that CEF can assist with load balancing but, be aware it must be set at both ends of a service as I understand it. Unfortunately I don't know enough about CEF yet. We do however have it configured in a number of instances. Teunis, Hobart, Tasmania Australia On Friday, December 15, 2000 at 11:27:59 AM, Priscilla Oppenheimer wrote: > Fast switching definitely has the problem you refer to. Fast switching > offers per-destination load-sharing. Since the router caches information on > how to forward traffic to a destination, all traffic to that destination > exits the same interface. > > One of the goals of CEF was to overcome this problem. I can't remember the > details, but I think you can do more precise load-balancing with CEF. I'll > see if I can dig up more details and get back to you. Or maybe some other > folks who use CEF can chime in. > > Priscilla > > At 12:31 PM 12/13/00, Adam Hickey wrote: > >Hey all, > > > >Question: > >1) On a router with multiple outbound paths, if fast switching (or CEF) = > >is enabled and outbound traffic comes through towards a given = > >destination, is all traffic for that same destination then locked to the = > >same path untill the route cache is cleared? > > > >2) If the above is yes, how long does the router maintain its route = > >cache? > > > >Purpose: > >We have a 7507 that will be running BGP over 2 T1's. We are attempting = > >to establish load balancing both inbound and out. Halabi (2nd Ed.) in = > >Chapter 7 warns that to do this one must be familiar with the different = > >methods of switching. Thus I am studying to find the pro's and cons of = > >each. CEF or fast switching sounds about right, however, the above = > >question was raised as I was discussing this with our lead engineer. > > > > > >Thank You > >Adam > >[EMAIL PROTECTED] > > > >_ > >FAQ, list archives, and subscription info: > >http://www.groupstudy.com/list/cisco.html > >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > Priscilla Oppenheimer > http://www.priscilla.com > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > -- www.tasmail.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching method help!!
Tony van Ree wrote: > > Hi, > > I understand yes that CEF can assist with load balancing but, be aware it must be >set at both ends of a service as I understand it. Unfortunately I don't know enough >about CEF yet. We do however have it configured in a number of instances. > > Teunis, > Hobart, Tasmania > Australia > The packet forwarding process is independent on each router, but to get the benefit of load-sharing by source and destination pairs, in _both_ directions, both ends would need to use CEF. For the group, here are a couple more links that explain CEF and other switching modes in more detail (no CCO account required): How to Choose the Best Router Switching Path for Your Network http://www.cisco.com/warp/public/105/20.html Performance Tuning Basics: http://www.cisco.com/warp/public/63/tuning.html Marty Adkins Email: [EMAIL PROTECTED] Mentor Technologies Phone: 410-280-8840 x3006 275 West Street, Plaza 70WWW: http://www.mentortech.com Annapolis, MD 21401 Cisco CCIE #1289 > On Friday, December 15, 2000 at 11:27:59 AM, Priscilla Oppenheimer wrote: > > > Fast switching definitely has the problem you refer to. Fast switching > > offers per-destination load-sharing. Since the router caches information on > > how to forward traffic to a destination, all traffic to that destination > > exits the same interface. > > > > One of the goals of CEF was to overcome this problem. I can't remember the > > details, but I think you can do more precise load-balancing with CEF. I'll > > see if I can dig up more details and get back to you. Or maybe some other > > folks who use CEF can chime in. > > > > Priscilla _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching method help!!
Does this case (CEF needed on both ends) still exist even if my 2 T1's terminate, on the far end, on two different routers (same provider though)? Thanks Adam Hickey [EMAIL PROTECTED] - Original Message - From: "Marty Adkins" <[EMAIL PROTECTED]> To: "Tony van Ree" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Cc: "Priscilla Oppenheimer" <[EMAIL PROTECTED]>; "Adam Hickey" <[EMAIL PROTECTED]> Sent: Monday, December 18, 2000 9:25 AM Subject: Re: Switching method help!! > Tony van Ree wrote: > > > > Hi, > > > > I understand yes that CEF can assist with load balancing but, be aware it must be set at both ends of a service as I understand it. Unfortunately I don't know enough about CEF yet. We do however have it configured in a number of instances. > > > > Teunis, > > Hobart, Tasmania > > Australia > > > The packet forwarding process is independent on each router, but to get the > benefit of load-sharing by source and destination pairs, in _both_ directions, > both ends would need to use CEF. > > For the group, here are a couple more links that explain CEF and other > switching modes in more detail (no CCO account required): > How to Choose the Best Router Switching Path for Your Network >http://www.cisco.com/warp/public/105/20.html > Performance Tuning Basics: >http://www.cisco.com/warp/public/63/tuning.html > > Marty Adkins Email: [EMAIL PROTECTED] > Mentor Technologies Phone: 410-280-8840 x3006 > 275 West Street, Plaza 70WWW: http://www.mentortech.com > Annapolis, MD 21401 Cisco CCIE #1289 > > > On Friday, December 15, 2000 at 11:27:59 AM, Priscilla Oppenheimer wrote: > > > > > Fast switching definitely has the problem you refer to. Fast switching > > > offers per-destination load-sharing. Since the router caches information on > > > how to forward traffic to a destination, all traffic to that destination > > > exits the same interface. > > > > > > One of the goals of CEF was to overcome this problem. I can't remember the > > > details, but I think you can do more precise load-balancing with CEF. I'll > > > see if I can dig up more details and get back to you. Or maybe some other > > > folks who use CEF can chime in. > > > > > > Priscilla > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching method help!!
hi Priscilla, I think CEF has an option of per-packet load sharing, which determines the path on a per-packet base. The real power comes from distributed CEF, where if you have a 75xx or similar with VIP cards, it'll utilize the switching processors on VIP cards to do the switching. This is the main reason we use CEF I think, you'll be surprised how much the CPU util % drops. Leon Chang CCNP, CCDA - Original Message - From: "Priscilla Oppenheimer" <[EMAIL PROTECTED]> To: "Adam Hickey" <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Saturday, December 16, 2000 12:15 PM Subject: Re: Switching method help!! > Sometimes I answer questions to try to bring out the experts, not because I > am an expert. &;-) But so far nobody has added to my comments about CEF, so > I will. > > From my additional reading on the topic, I think it's not quite right to > say that one of the goals of CEF was to overcome the per-destination > load-sharing disadvantage of fast-switching. It's more correct to say that > CEF was designed for a different type of network. It solves a different > problem. > > Fast switching speeds up forwarding in a typical small-to-medium network > with lots of client-server traffic. With fast switching, a router learns > the exit interface for a destination and caches this information, so that > the next time traffic comes in for that destination, the router can check > the cache and quickly forward the traffic without a routing-table lookup. > > CEF, on the other hand, speeds up forwarding in large networks with dynamic > traffic patterns, such as the Internet. CEF is useful for networks > characterized by Web-based applications or interactive sessions, where > there are numerous and ever-changing destinations. > > In networks with dynamic traffic patterns, fast switching cache entries > change frequently. These changes can cause traffic to be process switched > using the routing table, rather than fast switched using the route cache. > With CEF, on the other hand, the Forwarding Information Base (FIB) lookup > table contains all known routes that exist in the routing table. The FIB > eliminates route cache turnover. CEF also offers full switching capacity at > each line card when distributed CEF (dCEF) mode is used. > > See this URL for more info: > > http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/swit ch_c/xcprt2/xcdcef.htm > > Priscilla > > At 11:27 AM 12/15/00, Priscilla Oppenheimer wrote: > >Fast switching definitely has the problem you refer to. Fast switching > >offers per-destination load-sharing. Since the router caches information on > >how to forward traffic to a destination, all traffic to that destination > >exits the same interface. > > > >One of the goals of CEF was to overcome this problem. I can't remember the > >details, but I think you can do more precise load-balancing with CEF. I'll > >see if I can dig up more details and get back to you. Or maybe some other > >folks who use CEF can chime in. > > > >Priscilla > > > >At 12:31 PM 12/13/00, Adam Hickey wrote: > > >Hey all, > > > > > >Question: > > >1) On a router with multiple outbound paths, if fast switching (or CEF) = > > >is enabled and outbound traffic comes through towards a given = > > >destination, is all traffic for that same destination then locked to the = > > >same path untill the route cache is cleared? > > > > > >2) If the above is yes, how long does the router maintain its route = > > >cache? > > > > > >Purpose: > > >We have a 7507 that will be running BGP over 2 T1's. We are attempting = > > >to establish load balancing both inbound and out. Halabi (2nd Ed.) in = > > >Chapter 7 warns that to do this one must be familiar with the different = > > >methods of switching. Thus I am studying to find the pro's and cons of = > > >each. CEF or fast switching sounds about right, however, the above = > > >question was raised as I was discussing this with our lead engineer. > > > > > > > > >Thank You > > >Adam > > >[EMAIL PROTECTED] > > > > > >_ > > >FAQ, list archives, and subscription info: > > >http://www.groupstudy.com/list/cisco.html > > >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > > > > > >Priscilla Oppenheimer > >http://www.priscilla.com > > > >_ > >FAQ, list archives, and subscription info: &
Re: Switching, 640-504
Flashcards and repeated drilling... that's the ticket. It's like how your "times tables" used to be taught in public schools... >From: "Bradley J. Wilson" <[EMAIL PROTECTED]> >Reply-To: "Bradley J. Wilson" <[EMAIL PROTECTED]> >To: <[EMAIL PROTECTED]> >Subject: Switching, 640-504 >Date: Fri, 29 Sep 2000 10:04:58 -0400 > >This exam is sitting on my head and crushing it. *So* many different >switches to remember, all their cards that they do or do not support (and >in which slots), how large their CAM tables are, how many ports, which user >interface comes with which version of software...yadda yadda yadda. > >So, instead of asking "is all of this really on the test?" like some >wannabe paper chaser, I'll ask a slightly more creative question: has >anyone come up with any mnemonic devices which might help one memorize all >of these minutiae? > >Thanks in advance - > >Bradley Wilson >CCNA, CCDA, MCSE, NNCSS, CNX-A, MCT, CTT, and hopefully CCNP if I can >memorize all this switching nonsense. ;-) > > > _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com. **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching, 640-504
The one thing that helped me through this exam was to download from Cisco the specification sheets that have the nice diagrams showing the front and back of the gear. These visual representations gave me the ability to answer some of the configuration questions about the different units. I am a visual hands on person so your mileage might vary. -Original Message- From: Bradley J. Wilson [mailto:[EMAIL PROTECTED]] Sent: Friday, September 29, 2000 8:05 AM To: [EMAIL PROTECTED] Subject: Switching, 640-504 This exam is sitting on my head and crushing it. *So* many different switches to remember, all their cards that they do or do not support (and in which slots), how large their CAM tables are, how many ports, which user interface comes with which version of software...yadda yadda yadda. So, instead of asking "is all of this really on the test?" like some wannabe paper chaser, I'll ask a slightly more creative question: has anyone come up with any mnemonic devices which might help one memorize all of these minutiae? Thanks in advance - Bradley Wilson CCNA, CCDA, MCSE, NNCSS, CNX-A, MCT, CTT, and hopefully CCNP if I can memorize all this switching nonsense. ;-) **NOTE: New CCNA/CCDA List has been formed. For more information go to http://www.groupstudy.com/list/Associates.html _ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching 2.0 passed
Read the CCO case studies for BGP, also Halabis book would be a nice addition. Combined with the ACRC material you will pass the test. Know the IOS commands and in which config mode they should be typed in. BTW i am preparing for the switching 2.0 test. I summarized the following chapters from the CCIE LAN switching book: -CGMP/IGMP -VTP -L3 switching -VLAN -Trunking (no ATM, no FDDI) -STP Combined with the Boson Test, would that be enough to pass the exam? Gabriel > Please advice me . > BTW,I use ACRC courebook and CCO, Is that enough covering the whole exam > objectives in BSCN? > > Thanks > > Dean _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching 2.0 passed
On Thu, Oct 12, 2000 at 10:33:43AM +0200, Gabriel Nickel wrote: > Read the CCO case studies for BGP, also Halabis book would be a nice addition. >Combined with the ACRC material you will pass the > test. Know the IOS commands and in which config mode they should be typed in. > BTW i am preparing for the switching 2.0 test. I summarized the following chapters >from the CCIE LAN switching book: > -CGMP/IGMP > -VTP > -L3 switching > -VLAN > -Trunking (no ATM, no FDDI) > -STP > Combined with the Boson Test, would that be enough to pass the exam? Add knowing the Cisco switch line to your list. -- Jon Mitchell Systems Engineer, Subject Wills & Company [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching 2.0 passed
The switch line wasn't important on my test--I had two qeustions and they were both obvious. What you have listed does cover the test well. A lot STP, VLAN, and VTP. jeff "Jon Mitchell" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > On Thu, Oct 12, 2000 at 10:33:43AM +0200, Gabriel Nickel wrote: > > Read the CCO case studies for BGP, also Halabis book would be a nice addition. Combined with the ACRC material you will pass the > > test. Know the IOS commands and in which config mode they should be typed in. > > BTW i am preparing for the switching 2.0 test. I summarized the following chapters from the CCIE LAN switching book: > > -CGMP/IGMP > > -VTP > > -L3 switching > > -VLAN > > -Trunking (no ATM, no FDDI) > > -STP > > Combined with the Boson Test, would that be enough to pass the exam? > > Add knowing the Cisco switch line to your list. > > -- > Jon Mitchell > Systems Engineer, Subject Wills & Company > [EMAIL PROTECTED] > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: switching telnet sessions
thankz... i tried it but it didn't work. is there any term settings ?.. -Original Message- From: Dave Garlick [mailto:[EMAIL PROTECTED]] Sent: Wednesday, November 08, 2000 6:15 PM To: Serhat Erkan Subject: RE: switching telnet sessions There are a couple of ways to do it: Use the "show sessions" command then choose the number in front of the session you want. Or use the "CTRL+Shift+6" then "x". Dave > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > Serhat Erkan > Sent: Wednesday, November 08, 2000 9:23 AM > To: [EMAIL PROTECTED] > Subject: switching telnet sessions > > > How to ? > Thankz for your helpz. > > Serhat > > > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching. [7:551]
Congrats! Most people don't realize that Routing is much harder than they think it's going to be. It's a test on routing protocols, not routed protocols. Just be sure you've read up on the exam outline (maybe pull down the outline from the previous version of the test, as it breaks down different areas in more detail than the new exam outlines do) and know what to expect. When I know someone has had hands on router experience with T1s, ISDN, Frame Relay, etc., I usually suggest they go after the Remote Access (sounds like RAS/dial-up stuff), which is what they already have experience with. -- Jason Roysdon, CCNP+Security/CCDP, MCSE, CNA, Network+, A+ List email: [EMAIL PROTECTED] Homepage: http://jason.artoo.net/ ""CISQUO"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hi people, > > Cleared Switching this morning. It was pretty tough , as this was the first CCNP exam . > > Hope to clear Routing soon. > > 1 down 3 to go. > > Shree. > > _ > Chat with your friends as soon as they come online. Get Rediff Bol at > http://bol.rediff.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=551&t=551 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching [7:16632]
Every LAN segment in the network has a designated bridge. The designated bridge is the bridge on that LAN segment which advertises the lowest path cost to the root bridge. Only the deginated bridge is allowed to forward non-BPDU frames to other LAN segments. >>> "Hawthorne, Mike MM" 08/21/01 12:33PM >>> Please can someone explain the role of the designated bridge with regards to STP Thanks Mike __ Disclaimer and confidentiality note Everything in this e-mail and any attachments relating to the official business of Standard Bank Investment Corporation (Stanbic) is proprietary to the company. It is confidential, legally privileged and protected by law.\ Stanbic does not own and endorse any other content. Views and opinions are those of the sender unless clearly stated as being that of Stanbic. The person addressed in the e-mail is the sole authorised recipient. Please notify the sender immediately if it has unintentionally reached you and do not read, disclose or use the content in any way. Stanbic can not assure that the integrity of this communication has been maintained nor that it is free of errors, virus, interception or interference. __ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16639&t=16632 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching [7:16632]
To prevent loops, only one switch/bridge on each LAN/VLAN segment is elected to be the designated bridge/switch, and it usually has the best route to the root bridge/switch. More detailed information can be found here: http://www.cisco.com/warp/public/473/5.html Hth, Ole ~~~ Ole Drews Jensen Systems Network Manager CCNA, MCSE, MCP+I RWR Enterprises, Inc. [EMAIL PROTECTED] ~~~ http://www.RouterChief.com ~~~ NEED A JOB ??? http://www.oledrews.com/job ~~~ -Original Message- From: Hawthorne, Mike MM [mailto:[EMAIL PROTECTED]] Sent: Tuesday, August 21, 2001 5:34 AM To: [EMAIL PROTECTED] Subject: Switching [7:16632] Please can someone explain the role of the designated bridge with regards to STP Thanks Mike __ Disclaimer and confidentiality note Everything in this e-mail and any attachments relating to the official business of Standard Bank Investment Corporation (Stanbic) is proprietary to the company. It is confidential, legally privileged and protected by law.\ Stanbic does not own and endorse any other content. Views and opinions are those of the sender unless clearly stated as being that of Stanbic. The person addressed in the e-mail is the sole authorised recipient. Please notify the sender immediately if it has unintentionally reached you and do not read, disclose or use the content in any way. Stanbic can not assure that the integrity of this communication has been maintained nor that it is free of errors, virus, interception or interference. __ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16640&t=16632 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching [7:26735]
Mphekeleli I passed it about 3 wks ago and I'd have to say study up on VPN, VLAN's and trunking, ISL, CGMP the most. The questions are not like anything you may see on boson or any study guides. The one I took made you really think about the technology and how it works to come up with an answer. It's not that bad you'll do well if you just relax. Good Luck. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=26893&t=26735 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching 2.0 module
I passed it- yes? it enhanced- instead of memorizing a lot of obsolte stuff on 2800 and 3100 series CPUs, memory & other you'd know on Cisco positioning of new 3500, 4000, 6000 and 8500 series in the network, and also study MPLS theory and commands. Also pay attention for VLANs and especially trunking scenarios- they can be rether not so simple as you can imagine, Ruslan Tchinyakov, CCNP+Security, CCDP, MCSE -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of [EMAIL PROTECTED] Sent: Wednesday, July 19, 2000 7:02 AM To: groupstudy Subject: Switching 2.0 module Does anyone have some more detailed information about the Switching 2.0 exam? seems to be really different from the clsc exam but how much? cvp ccna ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching 2.0 module
The Switching (640-504) exam will contain a combination of the following topics: 1) Bridging/Switching Trunking Broadcasts Multicasts VTP Routing PIM Multi-Layer Switching Fast Ethernet IP Multicast Quality of Service Security TAG Switching Static VLANS 2) OSI Reference Model & Layered Communication Troubleshooting 3) Network Fundamentals DDR 4) Standards Definitions IEEE Standards 5)Cisco Fundamentals Debug IOS CLI Switch Cisco TAC/CCO Troubleshooting 6) OSI Reference Model & Layered Communication Switch Components RMON Policy management 7) Network Protocols ATM LANE Troubleshooting Switching Switching modes/methods Port Configuration Switching modes/methods 8) Routing Trunking this my help you good luck for your exam swapnil - Original Message - From: <[EMAIL PROTECTED]> To: groupstudy <[EMAIL PROTECTED]> Sent: Wednesday, July 19, 2000 8:31 AM Subject: Switching 2.0 module > > > Does anyone have some more detailed information about the Switching 2.0 exam? > seems to be really different from the clsc exam but how much? > > cvp > ccna > > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching 2.0 module
Can I just add that the test I had this past Friday was heavy on Trunking and VTP, also Multicast. Just my observation. I passed, but the amount of those type of questions took me by surprise somewhat. Hope that info helps someone out there. David -Original Message- From: swapnil [mailto:[EMAIL PROTECTED]] Sent: Tuesday, July 18, 2000 10:37 PM To: [EMAIL PROTECTED]; groupstudy Subject:Re: Switching 2.0 module The Switching (640-504) exam will contain a combination of the following topics: 1) Bridging/Switching Trunking Broadcasts Multicasts VTP Routing PIM Multi-Layer Switching Fast Ethernet IP Multicast Quality of Service Security TAG Switching Static VLANS 2) OSI Reference Model & Layered Communication Troubleshooting 3) Network Fundamentals DDR 4) Standards Definitions IEEE Standards 5)Cisco Fundamentals Debug IOS CLI Switch Cisco TAC/CCO Troubleshooting 6) OSI Reference Model & Layered Communication Switch Components RMON Policy management 7) Network Protocols ATM LANE Troubleshooting Switching Switching modes/methods Port Configuration Switching modes/methods 8) Routing Trunking this my help you good luck for your exam swapnil - Original Message - From: <[EMAIL PROTECTED]> To: groupstudy <[EMAIL PROTECTED]> Sent: Wednesday, July 19, 2000 8:31 AM Subject: Switching 2.0 module > > > Does anyone have some more detailed information about the Switching 2.0 exam? > seems to be really different from the clsc exam but how much? > > cvp > ccna > > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: switching 2.0 --help
When I took the test all I got hit on was -trunking -VTP -STP (sh spantree, portfast, uplinkfast) -Mulitcast. (CGMP, IGMP, DVMRP) -Of course VLANS -RSM (cmd syntax, etc.) -it's weird alot ofthe questions on the 2.0 tests are pretty vague only a couple ask for you to specify cmd's now. THe 2.0 tests are easier in my eyes. How hard is it to click on the exhibit button and pick a cmd from a list. Hope this helps... -THE KID ""Dean"" <[EMAIL PROTECTED]> wrote in message 8nisvn$b6o$[EMAIL PROTECTED]">news:8nisvn$b6o$[EMAIL PROTECTED]... > Hi group, > > I have just finished CLSC exam-prep book,cause it mainly focus on Cat5000 > series and Might it enough for me to pass switching 2.0? > > and second question is what is the passing score for swiching 2.0? > Third question is question type for it, all selective ques? > > thanks > > > ___ > UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html > FAQ, list archives, and subscription info: http://www.groupstudy.com > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > --- ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: switching 2.0 --help
I don't think that CLSC exam-prep book would be enough to pass the exam as the new switching 2.0 has a lot more then cat 5000 on it. I think they test different things. The passing score is 699. John -Original Message- From: Dean [mailto:[EMAIL PROTECTED]] Sent: Friday, August 18, 2000 1:44 AM To: [EMAIL PROTECTED] Subject: switching 2.0 --help Hi group, I have just finished CLSC exam-prep book,cause it mainly focus on Cat5000 series and Might it enough for me to pass switching 2.0? and second question is what is the passing score for swiching 2.0? Third question is question type for it, all selective ques? thanks ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] ___ UPDATED Posting Guidelines: http://www.groupstudy.com/list/guide.html FAQ, list archives, and subscription info: http://www.groupstudy.com Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: SWITCHING [7:55437]
the 3550 documentation instructs you to use the "change vtp domain name" technique, which works fine. I haven't tried the other ways, because they are too radical. -- www.chuckslongroad.info like my web site? take the survey! ""Paul Ruiz"" wrote in message news:200210120215.CAA31258@;groupstudy.com... > I'm working on 640-604 switching exam and here's my question on MLS. > > > > Scenario: > > access switch (asw 41) connects to a distribution switch (dsw 143 ) > which is setup for MLS. that MLS connects to a core switch (core 51). > The core switch is connected to another MLS (dsw 150) from dsw 150 a > port connects to a web server (server Z). When host A wants to ftp with > server Z for the first time and there no mls cache entry on dsw 143 and > dsw 150. How does the dsw 143 and 150 creates the mls cache entry. > > lets says host A is on access switch (asw 41) mac addr 000a ip address > 172.16.1.3 > server Z is on dsw 150 mac addr 000d ip address 172.16.151.50 > dsw 143 mac addr 000b > dsw 150 mac addr 000c > > > Paul Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=55443&t=55437 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching on an interface.
show interface switching >>> "James Haynes" <[EMAIL PROTECTED]> 4/6/01 1:11:16 PM >>> Does anyone remember the show command to observe the types of switching that are occurring on an interface and the number of packets switched by each method? I've used it before and it's escaping me now.. of course when I really need to look something up. I've tried looking it up in a few places and I'm getting nowhere. -- James Haynes Network Architect Cendant IT A+,MCSE,CCNA,CCDA,CCNP,CCDP _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching on an interface.
"show int stat" works too. > -Original Message- > From: John Neiberger [mailto:[EMAIL PROTECTED]] > Sent: Friday, April 06, 2001 2:35 PM > To: [EMAIL PROTECTED] > Cc: [EMAIL PROTECTED] > Subject: Re: Switching on an interface. > > > show interface switching > > >>> "James Haynes" <[EMAIL PROTECTED]> 4/6/01 1:11:16 PM >>> > Does anyone remember the show command to observe the types of > switching > that > are occurring on an interface and the number of packets switched by > each > method? > > I've used it before and it's escaping me now.. of course when I really > need > to look something up. I've tried looking it up in a few places and I'm > getting nowhere. > > -- > James Haynes > Network Architect > Cendant IT > A+,MCSE,CCNA,CCDA,CCNP,CCDP > Report misconduct > and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching on an interface.
Thx guys, the s int stats was the one I remember. I do like the output of s int switching though. -- James Haynes Network Architect Cendant IT A+,MCSE,CCNA,CCDA,CCNP,CCDP "Daniel Cotts" <[EMAIL PROTECTED]> wrote in message 303479FA060CD211B893F805A88AA11185@EXCHANGE1">news:303479FA060CD211B893F805A88AA11185@EXCHANGE1... > "show int stat" works too. > > > -Original Message- > > From: John Neiberger [mailto:[EMAIL PROTECTED]] > > Sent: Friday, April 06, 2001 2:35 PM > > To: [EMAIL PROTECTED] > > Cc: [EMAIL PROTECTED] > > Subject: Re: Switching on an interface. > > > > > > show interface switching > > > > >>> "James Haynes" <[EMAIL PROTECTED]> 4/6/01 1:11:16 PM >>> > > Does anyone remember the show command to observe the types of > > switching > > that > > are occurring on an interface and the number of packets switched by > > each > > method? > > > > I've used it before and it's escaping me now.. of course when I really > > need > > to look something up. I've tried looking it up in a few places and I'm > > getting nowhere. > > > > -- > > James Haynes > > Network Architect > > Cendant IT > > A+,MCSE,CCNA,CCDA,CCNP,CCDP > > Report misconduct > > and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching question. [7:32]
Darryn, Please refer to the link below: http://www.cisco.com/warp/public/473/lan-switch-cisco.shtml The answer to your question is there. Good luck. >From: "Darryn Levitt" >Reply-To: "Darryn Levitt" >To: [EMAIL PROTECTED] >Subject: Switching question. [7:32] >Date: Tue, 10 Apr 2001 03:35:42 -0400 > >Can someone please help me with the following question? > >On page 90 of Todd Lammle's CCNA study guide, it asks the question: >What is used to determine the designated port on a bridge? >A. Priority >B. Cost of the links attached to the switch >C. MAC Address >D. IP Address > >According to the answer at the end of the chapter, is says the answer is B. >For switches to determine the designated ports, the cost of the links >attached to each switch is used. > >But on page 84, it reads: To determine the designated ports on the >switches, the bridge ID is used. On page 80 it reads: The bridge ID is 8 >bytes long and includes the priority and the MAC address of the device. > >So , as far as I can see, the answer should be A. > >Or does it mean that when determining the designated port, you must first >look at the cost to the root bridge, and then at the bridge ID? > >Am I missing something here? > >Thank you > >Regards > >Darryn >--- >Outgoing mail is certified Virus Free. >Checked by AVG anti-virus system (http://www.grisoft.com). >Version: 6.0.247 / Virus Database: 120 - Release Date: 06/04/2001 >FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ Get your FREE download of MSN Explorer at http://explorer.msn.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=34&t=32 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching question. [7:32]
Wow- I would say MAC if we were talking VLAN's (to & from port decisions), but I'm guessing the "Cost Of The Attached Link," must be driving you toward a protocol answer. I didn't think STP worked exactly in this way (maybe I need to refresh). Anywho- don't spend your morning on this question. It's a brain teaser @ best. Bits & data will continue to pass whether you know this or not. The question is way too specific& up for grabs (IMHO) to be a test question, but I will research it too :o) Phil - Original Message - From: Dropped Packet To: Sent: Tuesday, April 10, 2001 4:33 AM Subject: Re: Switching question. [7:32] > Darryn, > > Please refer to the link below: > > http://www.cisco.com/warp/public/473/lan-switch-cisco.shtml > > The answer to your question is there. > > Good luck. > > > > > >From: "Darryn Levitt" > >Reply-To: "Darryn Levitt" > >To: [EMAIL PROTECTED] > >Subject: Switching question. [7:32] > >Date: Tue, 10 Apr 2001 03:35:42 -0400 > > > >Can someone please help me with the following question? > > > >On page 90 of Todd Lammle's CCNA study guide, it asks the question: > >What is used to determine the designated port on a bridge? > >A. Priority > >B. Cost of the links attached to the switch > >C. MAC Address > >D. IP Address > > > >According to the answer at the end of the chapter, is says the answer is B. > >For switches to determine the designated ports, the cost of the links > >attached to each switch is used. > > > >But on page 84, it reads: To determine the designated ports on the > >switches, the bridge ID is used. On page 80 it reads: The bridge ID is 8 > >bytes long and includes the priority and the MAC address of the device. > > > >So , as far as I can see, the answer should be A. > > > >Or does it mean that when determining the designated port, you must first > >look at the cost to the root bridge, and then at the bridge ID? > > > >Am I missing something here? > > > >Thank you > > > >Regards > > > >Darryn > >--- > >Outgoing mail is certified Virus Free. > >Checked by AVG anti-virus system (http://www.grisoft.com). > >Version: 6.0.247 / Virus Database: 120 - Release Date: 06/04/2001 > >FAQ, list archives, and subscription info: > >http://www.groupstudy.com/list/cisco.html > >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > _ > Get your FREE download of MSN Explorer at http://explorer.msn.com > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=101&t=32 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching Types [7:10569]
Heh..I noticed that same error.. even e-mailed Cisco about it.. Here's a great link that explains the default switching methods. things changed some with IOS 12.0... http://www.cisco.com/warp/public/63/tuning.html Enjoy! Mike W. "Swart Douwe" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > When we consider switching ie process, fast, silicon, optimum, distributed > and netflow, I believe that there is a default type for each protocol. > > From the one book, the Cisco CIT Training guide, it says that Fast switching > is the default for all protocols except IP. It says that optimum switching > is the default for IP, yet Optimum switching is only available on a Cisco > 7500 router. > > In the questions at the end of the chapter, it asks what is the default > switching type for IP, and it states the correct answer is fast switching. > As you can see, this contradicts the information stated previously. > > I have searched around the cisco website to no avail. There appears to be > articles referring to switching, but no article that stated definitely what > switching type is associated with which protocols. > > Can anyone shed any light on this for me? > > Is there a command that I can type to see the switching type in use? > > Thanks in advance for your replies. > > Douwe > > Visit our Website : http://www.traveland.com.au > > Disclaimer - This message and any attachments are confidential and may > contain privileged information intended only for the use of the addressee > named above. If you are not the intended recipient of this message you are > hereby notified that any use, dissemination, distribution or reproduction of > this message is prohibited. If you have received this message in error > please notify Traveland Pty Ltd immediately by return email. Any views > expressed in this message are those of the individual sender and may not > necessarily reflect the views of Traveland Pty Ltd.. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=10573&t=10569 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching question [7:16284]
The ISP will screw you down to one IP address so you will have to NAT that adress to 2 or more different addresses using a router. Regards, Phil. --- newbie newbie wrote: > Hello all. > > I have a quick question. I am trying to connect to > the internet using a > switch. I have plug the ethernet cable into port 5 > and my lab tops are > connected to ports 1 and 3. How do i share the > connection using the switch? > I know this sounds trivial but I am a newbie at this > whole routing stuff. > > Please let me know > > Thanks > > James [EMAIL PROTECTED] Do You Yahoo!? Get your free @yahoo.co.uk address at http://mail.yahoo.co.uk or your free @yahoo.ie address at http://mail.yahoo.ie Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16289&t=16284 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching question [7:16284]
What kind of connection to the internet do you have. Dial-up DSL CM ISDN - Original Message - From: "newbie newbie" To: Sent: Thursday, August 16, 2001 7:58 AM Subject: Switching question [7:16284] > Hello all. > > I have a quick question. I am trying to connect to the internet using a > switch. I have plug the ethernet cable into port 5 and my lab tops are > connected to ports 1 and 3. How do i share the connection using the switch? > I know this sounds trivial but I am a newbie at this whole routing stuff. > > Please let me know > > Thanks > > James Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=16297&t=16284 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: switching exam [7:43038]
Please, people, snap out of the Boson trance. I can't take it anymore. :-) I just had a discussion with Paul Borghese a few days ago about how Boson always gets through the filters but other vendors don't. Hopefully, that will change soon and we'll start to see better and less expensive options come through the list without being filtered. In fact, I wonder if this will make it through the filter since I'm saying something "bad" about the Boson cult? :-) Please proceed with flaming, ragging, name calling, tar and feathering, etc. However, one of these days you'll thank me from preventing you from getting that Boson tattoo on your chest ( on the ankle for the ladies) :-) If you're up for an argument, please email me offline :-) Shawn K. > -Original Message- > From: NetEng [SMTP:[EMAIL PROTECTED]] > Sent: Wednesday, May 01, 2002 5:18 PM > To: [EMAIL PROTECTED] > Subject: switching exam [7:43038] > > just took that switching exam: 79 ?'s, 90 minutes and 699 to pass. pretty > easy test, boson's were great as usual. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=43051&t=43038 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: switching exam [7:43038]
What's less expensive than Boson? JR -- Johnny Routin The "Routin" One ""Kaminski, Shawn G"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Please, people, snap out of the Boson trance. I can't take it anymore. :-) I > just had a discussion with Paul Borghese a few days ago about how Boson > always gets through the filters but other vendors don't. Hopefully, that > will change soon and we'll start to see better and less expensive options > come through the list without being filtered. In fact, I wonder if this will > make it through the filter since I'm saying something "bad" about the Boson > cult? :-) > > Please proceed with flaming, ragging, name calling, tar and feathering, etc. > However, one of these days you'll thank me from preventing you from getting > that Boson tattoo on your chest ( on the ankle for the ladies) :-) > > If you're up for an argument, please email me offline :-) > > Shawn K. > > > -Original Message- > > From: NetEng [SMTP:[EMAIL PROTECTED]] > > Sent: Wednesday, May 01, 2002 5:18 PM > > To: [EMAIL PROTECTED] > > Subject: switching exam [7:43038] > > > > just took that switching exam: 79 ?'s, 90 minutes and 699 to pass. pretty > > easy test, boson's were great as usual. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=43052&t=43038 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: switching exam [7:43038]
I don't think I could have gotten through my tests without Boson's help - other than being expensive, what is wrong with them? I don't think I see a cult here but I do see the proven track record and the quality name Boson has developed for themselves. High price is a direct result of high demand - simple economics. Adam Hickey [EMAIL PROTECTED] - Original Message - From: "Kaminski, Shawn G" To: Sent: Wednesday, May 01, 2002 3:31 PM Subject: RE: switching exam [7:43038] > Please, people, snap out of the Boson trance. I can't take it anymore. :-) I > just had a discussion with Paul Borghese a few days ago about how Boson > always gets through the filters but other vendors don't. Hopefully, that > will change soon and we'll start to see better and less expensive options > come through the list without being filtered. In fact, I wonder if this will > make it through the filter since I'm saying something "bad" about the Boson > cult? :-) > > Please proceed with flaming, ragging, name calling, tar and feathering, etc. > However, one of these days you'll thank me from preventing you from getting > that Boson tattoo on your chest ( on the ankle for the ladies) :-) > > If you're up for an argument, please email me offline :-) > > Shawn K. > > > -Original Message- > > From: NetEng [SMTP:[EMAIL PROTECTED]] > > Sent: Wednesday, May 01, 2002 5:18 PM > > To: [EMAIL PROTECTED] > > Subject: switching exam [7:43038] > > > > just took that switching exam: 79 ?'s, 90 minutes and 699 to pass. pretty > > easy test, boson's were great as usual. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=43053&t=43038 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: switching exam [7:43038]
Boson worked well for me too, but I hardly consider $40 expensive especially given the cost of others. Jon -Original Message- From: Adam Hickey [mailto:[EMAIL PROTECTED]] Sent: Wednesday, May 01, 2002 4:22 PM To: [EMAIL PROTECTED] Subject: Re: switching exam [7:43038] I don't think I could have gotten through my tests without Boson's help - other than being expensive, what is wrong with them? I don't think I see a cult here but I do see the proven track record and the quality name Boson has developed for themselves. High price is a direct result of high demand - simple economics. Adam Hickey [EMAIL PROTECTED] - Original Message - From: "Kaminski, Shawn G" To: Sent: Wednesday, May 01, 2002 3:31 PM Subject: RE: switching exam [7:43038] > Please, people, snap out of the Boson trance. I can't take it anymore. :-) I > just had a discussion with Paul Borghese a few days ago about how Boson > always gets through the filters but other vendors don't. Hopefully, that > will change soon and we'll start to see better and less expensive options > come through the list without being filtered. In fact, I wonder if this will > make it through the filter since I'm saying something "bad" about the Boson > cult? :-) > > Please proceed with flaming, ragging, name calling, tar and feathering, etc. > However, one of these days you'll thank me from preventing you from getting > that Boson tattoo on your chest ( on the ankle for the ladies) :-) > > If you're up for an argument, please email me offline :-) > > Shawn K. > > > -Original Message- > > From: NetEng [SMTP:[EMAIL PROTECTED]] > > Sent: Wednesday, May 01, 2002 5:18 PM > > To: [EMAIL PROTECTED] > > Subject: switching exam [7:43038] > > > > just took that switching exam: 79 ?'s, 90 minutes and 699 to pass. pretty > > easy test, boson's were great as usual. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=43058&t=43038 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: switching exam [7:43038]
It's sad, the true signs of brainwashing :-) I never said anything was wrong with them. The proven track record comes from the fact that they've done a great job marketing their products. Boson has quality products, BUT, BUT, BUT, as I've mentioned before, there are other companies out there that offer materials that are just as good if not better than Boson and the prices are about 80% cheaper. I would mention the companies, but I have a financial interest in these companies and I'd get flamed to death (believe it or not, I also have a financial interest in Boson/Quizware, but not anywhere near as much as I'd like :-) ) You can't really blame Boson for their high prices because they have to pay a percentage to their authors. Plus, like you said, people have been brainwashed into believing that Boson is the only company out there, which allows Boson to charge higher prices. So, look around a little and take a chance on some of these other companies. Don't worry, no one is going to yell at you for spending less money on certification materials :-) I'm just trying to save people some money while at the same time hoping that I make a little, as well! Shawn K. > -Original Message- > From: Jon Krabbenschmidt [SMTP:[EMAIL PROTECTED]] > Sent: Wednesday, May 01, 2002 8:28 PM > To: [EMAIL PROTECTED] > Subject: RE: switching exam [7:43038] > > Boson worked well for me too, but I hardly consider $40 expensive > especially > given the cost of others. > > Jon > > -Original Message- > From: Adam Hickey [mailto:[EMAIL PROTECTED]] > Sent: Wednesday, May 01, 2002 4:22 PM > To: [EMAIL PROTECTED] > Subject: Re: switching exam [7:43038] > > I don't think I could have gotten through my tests without Boson's help - > other than being expensive, what is wrong with them? I don't think I see a > cult here but I do see the proven track record and the quality name Boson > has developed for themselves. High price is a direct result of high demand > - > simple economics. > > > > Adam Hickey > [EMAIL PROTECTED] > > > > - Original Message - > From: "Kaminski, Shawn G" > To: > Sent: Wednesday, May 01, 2002 3:31 PM > Subject: RE: switching exam [7:43038] > > > > Please, people, snap out of the Boson trance. I can't take it anymore. > :-) > I > > just had a discussion with Paul Borghese a few days ago about how Boson > > always gets through the filters but other vendors don't. Hopefully, that > > will change soon and we'll start to see better and less expensive > options > > come through the list without being filtered. In fact, I wonder if this > will > > make it through the filter since I'm saying something "bad" about the > Boson > > cult? :-) > > > > Please proceed with flaming, ragging, name calling, tar and feathering, > etc. > > However, one of these days you'll thank me from preventing you from > getting > > that Boson tattoo on your chest ( on the ankle for the ladies) :-) > > > > If you're up for an argument, please email me offline :-) > > > > Shawn K. > > > > > -Original Message- > > > From: NetEng [SMTP:[EMAIL PROTECTED]] > > > Sent: Wednesday, May 01, 2002 5:18 PM > > > To: [EMAIL PROTECTED] > > > Subject: switching exam [7:43038] > > > > > > just took that switching exam: 79 ?'s, 90 minutes and 699 to pass. > pretty > > > easy test, boson's were great as usual. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=43074&t=43038 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: switching exam [7:43038]
You people spend MONEY on certification prep materials? I'm sorry. :-) --Tim Kaminski, Shawn G wrote: > > It's sad, the true signs of brainwashing :-) > > I never said anything was wrong with them. The proven track > record comes > from the fact that they've done a great job marketing their > products. Boson > has quality products, BUT, BUT, BUT, as I've mentioned before, > there are > other companies out there that offer materials that are just as > good if not > better than Boson and the prices are about 80% cheaper. I would > mention the > companies, but I have a financial interest in these companies > and I'd get > flamed to death (believe it or not, I also have a financial > interest in > Boson/Quizware, but not anywhere near as much as I'd like :-) ) > You can't > really blame Boson for their high prices because they have to > pay a > percentage to their authors. Plus, like you said, people have > been > brainwashed into believing that Boson is the only company out > there, which > allows Boson to charge higher prices. > > So, look around a little and take a chance on some of these > other companies. > Don't worry, no one is going to yell at you for spending less > money on > certification materials :-) I'm just trying to save people some > money while > at the same time hoping that I make a little, as well! > > Shawn K. > > > -Original Message- > > From: Jon Krabbenschmidt [SMTP:[EMAIL PROTECTED]] > > Sent: Wednesday, May 01, 2002 8:28 PM > > To: [EMAIL PROTECTED] > > Subject:RE: switching exam [7:43038] > > > > Boson worked well for me too, but I hardly consider $40 > expensive > > especially > > given the cost of others. > > > > Jon > > > > -Original Message- > > From: Adam Hickey [mailto:[EMAIL PROTECTED]] > > Sent: Wednesday, May 01, 2002 4:22 PM > > To: [EMAIL PROTECTED] > > Subject: Re: switching exam [7:43038] > > > > I don't think I could have gotten through my tests without > Boson's help - > > other than being expensive, what is wrong with them? I don't > think I see a > > cult here but I do see the proven track record and the > quality name Boson > > has developed for themselves. High price is a direct result > of high demand > > - > > simple economics. > > > > > > > > Adam Hickey > > [EMAIL PROTECTED] > > > > > > > > - Original Message - > > From: "Kaminski, Shawn G" > > To: > > Sent: Wednesday, May 01, 2002 3:31 PM > > Subject: RE: switching exam [7:43038] > > > > > > > Please, people, snap out of the Boson trance. I can't take > it anymore. > > :-) > > I > > > just had a discussion with Paul Borghese a few days ago > about how Boson > > > always gets through the filters but other vendors don't. > Hopefully, that > > > will change soon and we'll start to see better and less > expensive > > options > > > come through the list without being filtered. In fact, I > wonder if this > > will > > > make it through the filter since I'm saying something "bad" > about the > > Boson > > > cult? :-) > > > > > > Please proceed with flaming, ragging, name calling, tar and > feathering, > > etc. > > > However, one of these days you'll thank me from preventing > you from > > getting > > > that Boson tattoo on your chest ( on the ankle for the > ladies) :-) > > > > > > If you're up for an argument, please email me offline :-) > > > > > > Shawn K. > > > > > > > -Original Message- > > > > From: NetEng [SMTP:[EMAIL PROTECTED]] > > > > Sent: Wednesday, May 01, 2002 5:18 PM > > > > To: [EMAIL PROTECTED] > > > > Subject: switching exam [7:43038] > > > > > > > > just took that switching exam: 79 ?'s, 90 minutes and 699 > to pass. > > pretty > > > > easy test, boson's were great as usual. > > Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=43156&t=43038 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: switching exam [7:43038]
Tim is actually right. Everything you need to pass these exams is free on Cisco's website. The only problem is that the site is so huge, you don't know where to start! Shawn K. > -Original Message- > From: timothy thielen [SMTP:[EMAIL PROTECTED]] > Sent: Thursday, May 02, 2002 3:02 PM > To: [EMAIL PROTECTED] > Subject: RE: switching exam [7:43038] > > You people spend MONEY on certification prep materials? I'm sorry. :-) > > --Tim > > Kaminski, Shawn G wrote: > > > > It's sad, the true signs of brainwashing :-) > > > > I never said anything was wrong with them. The proven track > > record comes > > from the fact that they've done a great job marketing their > > products. Boson > > has quality products, BUT, BUT, BUT, as I've mentioned before, > > there are > > other companies out there that offer materials that are just as > > good if not > > better than Boson and the prices are about 80% cheaper. I would > > mention the > > companies, but I have a financial interest in these companies > > and I'd get > > flamed to death (believe it or not, I also have a financial > > interest in > > Boson/Quizware, but not anywhere near as much as I'd like :-) ) > > You can't > > really blame Boson for their high prices because they have to > > pay a > > percentage to their authors. Plus, like you said, people have > > been > > brainwashed into believing that Boson is the only company out > > there, which > > allows Boson to charge higher prices. > > > > So, look around a little and take a chance on some of these > > other companies. > > Don't worry, no one is going to yell at you for spending less > > money on > > certification materials :-) I'm just trying to save people some > > money while > > at the same time hoping that I make a little, as well! > > > > Shawn K. > > > > > -Original Message- > > > From: Jon Krabbenschmidt [SMTP:[EMAIL PROTECTED]] > > > Sent: Wednesday, May 01, 2002 8:28 PM > > > To: [EMAIL PROTECTED] > > > Subject: RE: switching exam [7:43038] > > > > > > Boson worked well for me too, but I hardly consider $40 > > expensive > > > especially > > > given the cost of others. > > > > > > Jon > > > > > > -Original Message- > > > From: Adam Hickey [mailto:[EMAIL PROTECTED]] > > > Sent: Wednesday, May 01, 2002 4:22 PM > > > To: [EMAIL PROTECTED] > > > Subject: Re: switching exam [7:43038] > > > > > > I don't think I could have gotten through my tests without > > Boson's help - > > > other than being expensive, what is wrong with them? I don't > > think I see a > > > cult here but I do see the proven track record and the > > quality name Boson > > > has developed for themselves. High price is a direct result > > of high demand > > > - > > > simple economics. > > > > > > > > > > > > Adam Hickey > > > [EMAIL PROTECTED] > > > > > > > > > > > > - Original Message - > > > From: "Kaminski, Shawn G" > > > To: > > > Sent: Wednesday, May 01, 2002 3:31 PM > > > Subject: RE: switching exam [7:43038] > > > > > > > > > > Please, people, snap out of the Boson trance. I can't take > > it anymore. > > > :-) > > > I > > > > just had a discussion with Paul Borghese a few days ago > > about how Boson > > > > always gets through the filters but other vendors don't. > > Hopefully, that > > > > will change soon and we'll start to see better and less > > expensive > > > options > > > > come through the list without being filtered. In fact, I > > wonder if this > > > will > > > > make it through the filter since I'm saying something "bad" > > about the > > > Boson > > > > cult? :-) > > > > > > > > Please proceed with flaming, ragging, name calling, tar and > > feathering, > > > etc. > > > > However, one of these days you'll thank me from preventing > > you from > > > getting > > > > that Boson tattoo on your chest ( on the ankle for the > > ladies) :-) > > > > > > > > If you're up for an argument, please email me offline :-) > > > > > > > > Shawn K. > > > > > > > > > -Original Message- > > > > > From: NetEng [SMTP:[EMAIL PROTECTED]] > > > > > Sent: Wednesday, May 01, 2002 5:18 PM > > > > > To: [EMAIL PROTECTED] > > > > > Subject: switching exam [7:43038] > > > > > > > > > > just took that switching exam: 79 ?'s, 90 minutes and 699 > > to pass. > > > pretty > > > > > easy test, boson's were great as usual. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=43184&t=43038 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: switching exam [7:43038]
I guess it depends on who pays for toner and the paper it's printed on. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Kaminski, Shawn G Sent: Thursday, May 02, 2002 5:18 PM To: [EMAIL PROTECTED] Subject: RE: switching exam [7:43038] Tim is actually right. Everything you need to pass these exams is free on Cisco's website. The only problem is that the site is so huge, you don't know where to start! Shawn K. > -Original Message- > From: timothy thielen [SMTP:[EMAIL PROTECTED]] > Sent: Thursday, May 02, 2002 3:02 PM > To: [EMAIL PROTECTED] > Subject: RE: switching exam [7:43038] > > You people spend MONEY on certification prep materials? I'm sorry. :-) > > --Tim > > Kaminski, Shawn G wrote: > > > > It's sad, the true signs of brainwashing :-) > > > > I never said anything was wrong with them. The proven track > > record comes > > from the fact that they've done a great job marketing their > > products. Boson > > has quality products, BUT, BUT, BUT, as I've mentioned before, > > there are > > other companies out there that offer materials that are just as > > good if not > > better than Boson and the prices are about 80% cheaper. I would > > mention the > > companies, but I have a financial interest in these companies > > and I'd get > > flamed to death (believe it or not, I also have a financial > > interest in > > Boson/Quizware, but not anywhere near as much as I'd like :-) ) > > You can't > > really blame Boson for their high prices because they have to > > pay a > > percentage to their authors. Plus, like you said, people have > > been > > brainwashed into believing that Boson is the only company out > > there, which > > allows Boson to charge higher prices. > > > > So, look around a little and take a chance on some of these > > other companies. > > Don't worry, no one is going to yell at you for spending less > > money on > > certification materials :-) I'm just trying to save people some > > money while > > at the same time hoping that I make a little, as well! > > > > Shawn K. > > > > > -Original Message- > > > From: Jon Krabbenschmidt [SMTP:[EMAIL PROTECTED]] > > > Sent: Wednesday, May 01, 2002 8:28 PM > > > To: [EMAIL PROTECTED] > > > Subject: RE: switching exam [7:43038] > > > > > > Boson worked well for me too, but I hardly consider $40 > > expensive > > > especially > > > given the cost of others. > > > > > > Jon > > > > > > -Original Message- > > > From: Adam Hickey [mailto:[EMAIL PROTECTED]] > > > Sent: Wednesday, May 01, 2002 4:22 PM > > > To: [EMAIL PROTECTED] > > > Subject: Re: switching exam [7:43038] > > > > > > I don't think I could have gotten through my tests without > > Boson's help - > > > other than being expensive, what is wrong with them? I don't > > think I see a > > > cult here but I do see the proven track record and the > > quality name Boson > > > has developed for themselves. High price is a direct result > > of high demand > > > - > > > simple economics. > > > > > > > > > > > > Adam Hickey > > > [EMAIL PROTECTED] > > > > > > > > > > > > - Original Message - > > > From: "Kaminski, Shawn G" > > > To: > > > Sent: Wednesday, May 01, 2002 3:31 PM > > > Subject: RE: switching exam [7:43038] > > > > > > > > > > Please, people, snap out of the Boson trance. I can't take > > it anymore. > > > :-) > > > I > > > > just had a discussion with Paul Borghese a few days ago > > about how Boson > > > > always gets through the filters but other vendors don't. > > Hopefully, that > > > > will change soon and we'll start to see better and less > > expensive > > > options > > > > come through the list without being filtered. In fact, I > > wonder if this > > > will > > > > make it through the filter since I'm saying something "bad" > > about the > > > Boson > > > > cult? :-) > > > > > > > > Please proceed with flaming, ragging, name calling, tar and > > feathering, > > > etc. > > > > However, one of these days you'll thank me from preventing > > you from > > > getting > > > > that Boson tattoo on your chest ( on the ankle for the > > ladies) :-) > > > > > > > > If you're up for an argument, please email me offline :-) > > > > > > > > Shawn K. > > > > > > > > > -Original Message- > > > > > From: NetEng [SMTP:[EMAIL PROTECTED]] > > > > > Sent: Wednesday, May 01, 2002 5:18 PM > > > > > To: [EMAIL PROTECTED] > > > > > Subject: switching exam [7:43038] > > > > > > > > > > just took that switching exam: 79 ?'s, 90 minutes and 699 > > to pass. > > > pretty > > > > > easy test, boson's were great as usual. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=43190&t=43038 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching exam [7:20399]
I bought the Cisco prep library ($150 for all 4 CCNP required books)and just finished the BCMSN book. It was a very easy read. Now time to study and take the exam next month. Good luck! Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=20693&t=20399 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching issues [7:24986]
These are messages you will see anytime a connected device powers off, resets or disconnects from the switch. I wouldn't be shocked if there are flaky NIC's or other issues that may cause these though. Dave DAGENHARDT Frank wrote: > > Group, > > I have several ports on my 4003 switches that get frequent > %PAGP-5-PORTFROMSTP and %PAGP-5-PORTTOSTP errors. The ports that are > flapping all have workstations attached to them, but I don't see any > difference between these workstations and any others. Anybody have any > clues? Do I need to give more info? > > Thanks, > > Frank -- David Madland Sr. Network Engineer CCIE# 2016 Qwest Communications Int. Inc. [EMAIL PROTECTED] 612-664-3367 "Emotion should reflect reason not guide it" Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=24998&t=24986 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching issues [7:24986]
Sounds to me like they're rebooting or something. We get that all the time on our switches when PCs/servers reboot. It just means they're "leaving" and "joining" your STP. Mike W. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=25015&t=24986 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching VTP [7:55438]
A correction. The command SHOW SPANNING-TREE is issued a IOS based switch such as the 2900, not 4000. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=55439&t=55438 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching Exam [7:59082]
They are very similar to the real ones. I used the one for 605 and it helped to know what to expect. Xueyan Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=59083&t=59082 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching Exam [7:59082]
I have used the Boson Practice test, and most are quite similar to the real deal, except the for the Cvoice testI would practice the test until I got a 900 or better... Use the test to learn the material, not to memorize the answers d r0zz wrote: >I am seeking some cisco letters after my name.. whooaoo... anyways I have >worked in network security field (gray hat) for about 6 years or so... > >I downloaded the selftestsoftware exams for switching and score about 850 or >so... How close are those exams to the cisco ones... similiar questions, >wording, etc.. ?? anyone used them before... thanks Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=59110&t=59082 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching Exam [7:60934]
Hi there, First of all, sorry for the late reply. I have been really busy with other committments. Secondly, I was really upset to hear you couldn't clear the BCMSN exam. I just got a few tips which I used to study. Maybe they might work for you as well. 1. Underline/highlight the important points 2. Practice everything very thoroughly 3. Write on the top of your book "Everything is difficult before it is easy!" Trust me, I had a tough time myself trying to grasp the concepts. But one you get them, it is not really that though. Sometimes, you might feel that the material is not enough so refer to the Cisco site for help on things like BackboneFast etc. But overall, it is really not that tough. Go through the whole book thoroughly 2 or 3 times and underline/highlight all the major points for constant review. Also, keep a printout of the exam outline with you and mark the topics as you cover them to be sure nothing is left out. Best of luck on your next attempt. I have faith you'll clear it this time... Cheers, Kenan Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=61313&t=60934 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching book [7:61326]
""Cisco Newbie"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Can anyone recommend a good Cisco switching book that is not to basic and > explains vlans in good detail with some advance examples. Thanks. > > Kennedy Clark's book Cisco LAN Switching ( Cisco Press ) is a good place to start. Depending upon what you mean by "good detail" and "advance examples" the Cisco 3550 switch documentation is pretty good, as well as various 3550 white papers and practice labs that are available from Certification Zone, IPExpert, and Netcraftsmen offer something worth spending some time with. > - > Do you Yahoo!? > Yahoo! Mail Plus - Powerful. Affordable. Sign up now Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=61327&t=61326 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching book [7:61326]
kennedy Clark, CCIE switching book... Larry Letterman Network Engineer Cisco Systems - Original Message - From: "Cisco Newbie" To: Sent: Saturday, January 18, 2003 8:43 PM Subject: Switching book [7:61326] > Can anyone recommend a good Cisco switching book that is not to basic and > explains vlans in good detail with some advance examples. Thanks. > > > - > Do you Yahoo!? > Yahoo! Mail Plus - Powerful. Affordable. Sign up now Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=61328&t=61326 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching book [7:61326]
for those who have asked off line, the Netcraftsman materials may be found at: http://www.netmasterclass.net/site/lib.php as long as I'm plugging the competition, I do wish you all would hook up with certification zone and use the materials found there. worth the price www.certificationzone.com -- TANSTAAFL "there ain't no such thing as a free lunch" ""The Long and Winding Road"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > ""Cisco Newbie"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Can anyone recommend a good Cisco switching book that is not to basic and > > explains vlans in good detail with some advance examples. Thanks. > > > > > > Kennedy Clark's book Cisco LAN Switching ( Cisco Press ) is a good place to > start. Depending upon what you mean by "good detail" and "advance examples" > the Cisco 3550 switch documentation is pretty good, as well as various 3550 > white papers and practice labs that are available from Certification Zone, > IPExpert, and Netcraftsmen offer something worth spending some time with. > > > > > - > > Do you Yahoo!? > > Yahoo! Mail Plus - Powerful. Affordable. Sign up now Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=61352&t=61326 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: switching exam [7:54782]
Here's some advice for the SWTCH 640-604 exam. Read and understand the following link (watch for wrap): http://www.cisco.com/warp/public/cc/pd/si/casi/ca6000/tech/campn_wp.htm Shawn K. > -Original Message- > From: Vladimir Rusu [SMTP:[EMAIL PROTECTED]] > Sent: Thursday, October 03, 2002 4:33 AM > To: [EMAIL PROTECTED] > Subject: switching exam [7:54782] > > Hello > > I am going to give the ccnp switching exam. Could anyone help me with some > important notes about the exam or some important advice about practice, > what > simulator to use .. > > Thank you > > > > - > Do you Yahoo!? > New DSL Internet Access from SBC & Yahoo! Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=54786&t=54782 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching exam Friday [7:5488]
Focus on MLS and Multicasting, beware for the detail, its all inside BCMSN cisco press Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=5499&t=5488 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching and STP [7:38137]
I'm not sure if i understand your questions, http://www.cisco.com/warp/public/473/5.html has information on how STP works and each of the phases (blocking, listening, learning, forwarding) How do you mean breaks a collision domain? A switch has collison domains equal to the amount of physical ports. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38144&t=38137 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching and STP [7:38137]
At 05:02 PM 3/13/02, PING wrote: >I have follwoing questions: > >Q1: When all the ports are in BLOCKing mode at start on switch, >how the initial broadcasts are then forwarded in a network so that >switches can learn about each other via BPDUs? A bridge port transitions to listening after expiration of a short timer or receipt of a configuration BPDU on this port or another port. While in the listening state, the port is still not sending any user data or building the bridging table, but it is sending and receiving BPDUs in an effort to build the spanning tree. While in this state, the port may determine that it really isn't a Designated or Root Port and revert to the blocking state. >Q2: When a switch breaks the collision domains, then what is the >point of using Fragment Free method to avoid collisions? Fragment Free does not avoid collisions. It avoids the forwarding of runt (fragment) frames that result from collisions. A collision could occur on any shared LAN that is connected to a switch port. The result of a collision is usually a runt (fragment) frame. The senders notice the collision, stop transmitting, and back off for a random amount of time before resending. The result is a runt. Should a switch forward this runt? Fragment Free means no, it should not. It causes the switch to do a little extra processing and take a little extra time to make sure that it only forwards frames that are 64 bytes or more, that is, non-runts. >/N Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38145&t=38137 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching and STP [7:38137]
""PING"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > I have follwoing questions: > > Q1: When all the ports are in BLOCKing mode at start on switch, > how the initial broadcasts are then forwarded in a network so that > switches can learn about each other via BPDUs? It is blocking data traffic not protocol updates (BDPUs) > > Q2: When a switch breaks the collision domains, then what is the > point of using Fragment Free method to avoid collisions? Fragment Free tries it's best. Collisions can still occur. The difference between the mothods is the amount of the packet that is read before it is forwarded. If you want to have the best chance of never having a collision use Store and Forward. > /N Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38155&t=38137 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching and STP [7:38137]
At 06:05 PM 3/13/02, Brian Lodwick wrote: >""PING"" wrote in message >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > I have follwoing questions: > > > > Q1: When all the ports are in BLOCKing mode at start on switch, > > how the initial broadcasts are then forwarded in a network so that > > switches can learn about each other via BPDUs? > >It is blocking data traffic not protocol updates (BDPUs) A blocked port also doesn't send BPDUs. But it does hear and process them. Also, during startup, a port transitions out of blocking into listening relatively quickly. In the listening state, it does send BPDUs. > > > > Q2: When a switch breaks the collision domains, then what is the > > point of using Fragment Free method to avoid collisions? > >Fragment Free tries its best. Collisions can still occur. The difference >between the mothods is the amount of the packet that is read before it is >forwarded. True. Cut-through starts forwarding ASAP. Fragment Free waits until at least 64 bytes are received. Store and Forward waits for the entire frame. >If you want to have the best chance of never having a collision >use Store and Forward. Not true. The forwarding method doesn't affect the chances of having a collision. Fragment Free simply means don't forward a fragment (which usually was the result of a collision that already occured). > > /N Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38159&t=38137 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching and STP [7:38137]
>""PING"" wrote in message >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... >> I have follwoing questions: >> >> Q1: When all the ports are in BLOCKing mode at start on switch, >> how the initial broadcasts are then forwarded in a network so that > > switches can learn about each other via BPDUs?\ Brian Lodwick answered, > >It is blocking data traffic not protocol updates (BDPUs) > >> >> Q2: When a switch breaks the collision domains, then what is the >> point of using Fragment Free method to avoid collisions? > >Fragment Free tries it's best. Collisions can still occur. The difference >between the mothods is the amount of the packet that is read before it is >forwarded. If you want to have the best chance of never having a collision >use Store and Forward. > > > /N Excellent example, Brian. Mixing up data and control flow is one of the best ways to get confused. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38169&t=38137 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching exam question [7:23497]
Yes. For the server to have a fully redundant connection it must have a second NIC to another switch and failover software in place. However, you are mistaken that anyone would normally disable STP on any trunk port, regardless of whether the switch is in the Core, Distribution, or Access layer. Piatnitchi Cristian wrote: > Please see this link > > http://www.geocities.com/cristi_piatnitchi/ > This is picture from the Cisco site. > > Could you explain me how the redundacy is achieved for the server present on > this scheme ? > In my opinion if there is no STP in the L2 core and nor a second connection > from the server to the other switch "cb" > there is no protection against of a failure of switch "ca". So I consider is > useless to have redundancy in the access and > distribution layers. Am I wrong ? If yes why ? > > Thanks in advance > Cristian Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=23557&t=23497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching exam question [7:23497]
Actually, Cisco teaches that in certain circumstances in the Core, you want to disable Spanning Tree Protocol (STP). I don't have the courseware with me at the moment, but I guess the thinking is that with Core layer devices, you don't run anything extraneous that takes away from the primary role of high-speed packet switching. STP is considered extraneous when it's not required. Instead of me posting from Cisco's course material once I'm at home, why not search Cisco for this information... if you're interested in knowing more. -- Leigh Anne > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > Jonathan Hays > Sent: Friday, October 19, 2001 2:20 PM > To: [EMAIL PROTECTED] > Subject: Re: Switching exam question [7:23497] > > > Yes. For the server to have a fully redundant connection it must have a > second NIC to > another switch and failover software in place. > > However, you are mistaken that anyone would normally disable STP on any > trunk port, > regardless of whether the switch is in the Core, Distribution, or Access > layer. > > Piatnitchi Cristian wrote: > > > Please see this link > > > > http://www.geocities.com/cristi_piatnitchi/ > > This is picture from the Cisco site. > > > > Could you explain me how the redundacy is achieved for the > server present > on > > this scheme ? > > In my opinion if there is no STP in the L2 core and nor a > second connection > > from the server to the other switch "cb" > > there is no protection against of a failure of switch "ca". So > I consider > is > > useless to have redundancy in the access and > > distribution layers. Am I wrong ? If yes why ? > > > > Thanks in advance > > Cristian Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=23589&t=23497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching exam question [7:23497]
so the risk of a bridge loop is better than a recalculation of spanning tree ;-> Chuck -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Leigh Anne Chisholm Sent: Friday, October 19, 2001 7:55 PM To: [EMAIL PROTECTED] Subject: RE: Switching exam question [7:23497] Actually, Cisco teaches that in certain circumstances in the Core, you want to disable Spanning Tree Protocol (STP). I don't have the courseware with me at the moment, but I guess the thinking is that with Core layer devices, you don't run anything extraneous that takes away from the primary role of high-speed packet switching. STP is considered extraneous when it's not required. Instead of me posting from Cisco's course material once I'm at home, why not search Cisco for this information... if you're interested in knowing more. -- Leigh Anne > -Original Message- > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > Jonathan Hays > Sent: Friday, October 19, 2001 2:20 PM > To: [EMAIL PROTECTED] > Subject: Re: Switching exam question [7:23497] > > > Yes. For the server to have a fully redundant connection it must have a > second NIC to > another switch and failover software in place. > > However, you are mistaken that anyone would normally disable STP on any > trunk port, > regardless of whether the switch is in the Core, Distribution, or Access > layer. > > Piatnitchi Cristian wrote: > > > Please see this link > > > > http://www.geocities.com/cristi_piatnitchi/ > > This is picture from the Cisco site. > > > > Could you explain me how the redundacy is achieved for the > server present > on > > this scheme ? > > In my opinion if there is no STP in the L2 core and nor a > second connection > > from the server to the other switch "cb" > > there is no protection against of a failure of switch "ca". So > I consider > is > > useless to have redundancy in the access and > > distribution layers. Am I wrong ? If yes why ? > > > > Thanks in advance > > Cristian Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=23603&t=23497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching exam question [7:23497]
> so the risk of a bridge loop is better than a recalculation of spanning tree > ;-> > sure, especially when you KNOW you're in a loop-free environment. of course, my motto is "spanning tree bridging, don't leave home without it". I've seen goofy things happen without spanning tree or with partial spanning tree running in a looped environment. (don't ask about 'partial spanning tree' - I still can't figure out how they did that and why) And I've seen goofy things happen with spanning tree in big redundant environments, especially with respect to not being able to control which ports get disabled in a loop path. The morale of the story there is the path you want to have disabled (the redundant one between switches) will always be enabled, and vice versa (as in the uplink to the router will be disabled). _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=23608&t=23497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching exam question [7:23497]
Hmm. Interesting. Which course are you referring to? I haven't seen that reference myself but I believe you. I have yet to disable STP on a trunk port myself or see it done by any of the many ISPs I have encountered in the last 3-4 years. Most people I have worked with consider the price of running STP mandatory insurance against loops (since you never know what's going to happen once you have completed the project). Although not a programmer myself several network programmers have given me the impression that most switch software is optimized for STP which leaves me to doubt that disabling it is going to buy you much increased efficiency. But I may be way off base. Is this something you have seen in the field? Leigh Anne Chisholm wrote: > Actually, Cisco teaches that in certain circumstances in the Core, you want > to disable Spanning Tree Protocol (STP). I don't have the courseware with > me at the moment, but I guess the thinking is that with Core layer devices, > you don't run anything extraneous that takes away from the primary role of > high-speed packet switching. STP is considered extraneous when it's not > required. > > Instead of me posting from Cisco's course material once I'm at home, why not > search Cisco for this information... if you're interested in knowing more. > > -- Leigh Anne > > > -Original Message- > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > > Jonathan Hays > > Sent: Friday, October 19, 2001 2:20 PM > > To: [EMAIL PROTECTED] > > Subject: Re: Switching exam question [7:23497] > > > > > > Yes. For the server to have a fully redundant connection it must have a > > second NIC to > > another switch and failover software in place. > > > > However, you are mistaken that anyone would normally disable STP on any > > trunk port, > > regardless of whether the switch is in the Core, Distribution, or Access > > layer. > > > > Piatnitchi Cristian wrote: > > > > > Please see this link > > > > > > http://www.geocities.com/cristi_piatnitchi/ > > > This is picture from the Cisco site. > > > > > > Could you explain me how the redundacy is achieved for the > > server present > > on > > > this scheme ? > > > In my opinion if there is no STP in the L2 core and nor a > > second connection > > > from the server to the other switch "cb" > > > there is no protection against of a failure of switch "ca". So > > I consider > > is > > > useless to have redundancy in the access and > > > distribution layers. Am I wrong ? If yes why ? > > > > > > Thanks in advance > > > Cristian Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=23605&t=23497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching exam question [7:23497]
-Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of EA Louie Sent: Saturday, October 20, 2001 12:43 AM To: [EMAIL PROTECTED] Subject: Re: Switching exam question [7:23497] > so the risk of a bridge loop is better than a recalculation of spanning tree > ;-> > sure, especially when you KNOW you're in a loop-free environment. CL: never underestimate the probability that what you KNOW will not remain true for long :-> of course, my motto is "spanning tree bridging, don't leave home without it". I've seen goofy things happen without spanning tree or with partial spanning tree running in a looped environment. (don't ask about 'partial spanning tree' - I still can't figure out how they did that and why) And I've seen goofy things happen with spanning tree in big redundant environments, especially with respect to not being able to control which ports get disabled in a loop path. The morale of the story there is the path you want to have disabled (the redundant one between switches) will always be enabled, and vice versa (as in the uplink to the router will be disabled). CL: this probably explains why The Powers That Be spend so much time trying to teach us how spanning tree works, and provide the ability to change bridge priorities. CCIE types are SUPPOSED to draw out their diagrams, and calculate the paths, and set the priorities so that the things you describe don't happen. The truth is, most of us, CCIE or otherwise, just muddle through. :-> _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=23618&t=23497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching exam question [7:23497]
> > so the risk of a bridge loop is better than a recalculation of spanning >tree >> ;-> >> >sure, especially when you KNOW you're in a loop-free environment. of >course, my motto is "spanning tree bridging, don't leave home without it". > >I've seen goofy things happen without spanning tree or with partial spanning >tree running in a looped environment. (don't ask about 'partial spanning >tree' - I still can't figure out how they did that and why) And I've seen >goofy things happen with spanning tree in big redundant environments, >especially with respect to not being able to control which ports get >disabled in a loop path. The morale of the story there is the path you want >to have disabled (the redundant one between switches) will always be >enabled, and vice versa (as in the uplink to the router will be disabled). Perhaps not a general application, but the intercarrier exchange point operators have been pleading for switches where STP is off by default. Now, understand their environment is very controlled, with point-to-point or at most point-to-two-point links among routers through a common fabric. They use VLANs as points on a virtual patch panel. They may use them to distinguish among customers (who are ISPs), and possibly between multicast and unicast services. There was a presentation at the last Washington NANOG on this, by Paul Vixie. There is even more continuing discussion in the European Exchange Point Operators mailing list under RIPE. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=23619&t=23497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Switching exam question [7:23497]
That makes sense. A hierarchical network design is already a tree! Thanks. Priscilla At 10:55 PM 10/19/01, Leigh Anne Chisholm wrote: >Actually, Cisco teaches that in certain circumstances in the Core, you want >to disable Spanning Tree Protocol (STP). I don't have the courseware with >me at the moment, but I guess the thinking is that with Core layer devices, >you don't run anything extraneous that takes away from the primary role of >high-speed packet switching. STP is considered extraneous when it's not >required. > >Instead of me posting from Cisco's course material once I'm at home, why not >search Cisco for this information... if you're interested in knowing more. > > > -- Leigh Anne > > > -Original Message- > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > > Jonathan Hays > > Sent: Friday, October 19, 2001 2:20 PM > > To: [EMAIL PROTECTED] > > Subject: Re: Switching exam question [7:23497] > > > > > > Yes. For the server to have a fully redundant connection it must have a > > second NIC to > > another switch and failover software in place. > > > > However, you are mistaken that anyone would normally disable STP on any > > trunk port, > > regardless of whether the switch is in the Core, Distribution, or Access > > layer. > > > > Piatnitchi Cristian wrote: > > > > > Please see this link > > > > > > http://www.geocities.com/cristi_piatnitchi/ > > > This is picture from the Cisco site. > > > > > > Could you explain me how the redundacy is achieved for the > > server present > > on > > > this scheme ? > > > In my opinion if there is no STP in the L2 core and nor a > > second connection > > > from the server to the other switch "cb" > > > there is no protection against of a failure of switch "ca". So > > I consider > > is > > > useless to have redundancy in the access and > > > distribution layers. Am I wrong ? If yes why ? > > > > > > Thanks in advance > > > Cristian Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=23701&t=23497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching exam question [7:23497]
Good point. Although I did not originate this thread, a hearty thanks to all posters!! I learned something here... Priscilla Oppenheimer wrote: > That makes sense. A hierarchical network design is already a tree! > > Thanks. > > Priscilla > > At 10:55 PM 10/19/01, Leigh Anne Chisholm wrote: > >Actually, Cisco teaches that in certain circumstances in the Core, you want > >to disable Spanning Tree Protocol (STP). I don't have the courseware with > >me at the moment, but I guess the thinking is that with Core layer devices, > >you don't run anything extraneous that takes away from the primary role of > >high-speed packet switching. STP is considered extraneous when it's not > >required. > > > >Instead of me posting from Cisco's course material once I'm at home, why not > >search Cisco for this information... if you're interested in knowing more. > > > > > > -- Leigh Anne > > > > > -Original Message- > > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > > > Jonathan Hays > > > Sent: Friday, October 19, 2001 2:20 PM > > > To: [EMAIL PROTECTED] > > > Subject: Re: Switching exam question [7:23497] > > > > > > > > > Yes. For the server to have a fully redundant connection it must have a > > > second NIC to > > > another switch and failover software in place. > > > > > > However, you are mistaken that anyone would normally disable STP on any > > > trunk port, > > > regardless of whether the switch is in the Core, Distribution, or Access > > > layer. > > > > > > Piatnitchi Cristian wrote: > > > > > > > Please see this link > > > > > > > > http://www.geocities.com/cristi_piatnitchi/ > > > > This is picture from the Cisco site. > > > > > > > > Could you explain me how the redundacy is achieved for the > > > server present > > > on > > > > this scheme ? > > > > In my opinion if there is no STP in the L2 core and nor a > > > second connection > > > > from the server to the other switch "cb" > > > > there is no protection against of a failure of switch "ca". So > > > I consider > > > is > > > > useless to have redundancy in the access and > > > > distribution layers. Am I wrong ? If yes why ? > > > > > > > > Thanks in advance > > > > Cristian > > > Priscilla Oppenheimer > http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=23779&t=23497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching exam question [7:23497]
I was hoping nobody would answer. ;-) Because actually I don't like my answer. It should read, "A hierarchical network design MAY already be a tree!" It wouldn't necessarily be a tree. Priscilla At 11:31 PM 10/22/01, Jonathan Hays wrote: >Good point. > >Although I did not originate this thread, a hearty thanks to all posters!! I >learned >something here... > >Priscilla Oppenheimer wrote: > > > That makes sense. A hierarchical network design is already a tree! > > > > Thanks. > > > > Priscilla > > > > At 10:55 PM 10/19/01, Leigh Anne Chisholm wrote: > > >Actually, Cisco teaches that in certain circumstances in the Core, you >want > > >to disable Spanning Tree Protocol (STP). I don't have the courseware with > > >me at the moment, but I guess the thinking is that with Core layer >devices, > > >you don't run anything extraneous that takes away from the primary role of > > >high-speed packet switching. STP is considered extraneous when it's not > > >required. > > > > > >Instead of me posting from Cisco's course material once I'm at home, why >not > > >search Cisco for this information... if you're interested in knowing more. > > > > > > > > > -- Leigh Anne > > > > > > > -Original Message- > > > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > > > > Jonathan Hays > > > > Sent: Friday, October 19, 2001 2:20 PM > > > > To: [EMAIL PROTECTED] > > > > Subject: Re: Switching exam question [7:23497] > > > > > > > > > > > > Yes. For the server to have a fully redundant connection it must have a > > > > second NIC to > > > > another switch and failover software in place. > > > > > > > > However, you are mistaken that anyone would normally disable STP on any > > > > trunk port, > > > > regardless of whether the switch is in the Core, Distribution, or >Access > > > > layer. > > > > > > > > Piatnitchi Cristian wrote: > > > > > > > > > Please see this link > > > > > > > > > > http://www.geocities.com/cristi_piatnitchi/ > > > > > This is picture from the Cisco site. > > > > > > > > > > Could you explain me how the redundacy is achieved for the > > > > server present > > > > on > > > > > this scheme ? > > > > > In my opinion if there is no STP in the L2 core and nor a > > > > second connection > > > > > from the server to the other switch "cb" > > > > > there is no protection against of a failure of switch "ca". So > > > > I consider > > > > is > > > > > useless to have redundancy in the access and > > > > > distribution layers. Am I wrong ? If yes why ? > > > > > > > > > > Thanks in advance > > > > > Cristian > > > > > > Priscilla Oppenheimer > > http://www.priscilla.com Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=23843&t=23497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching exam question [7:23497]
Not being trained in topological mathematics I am geussing that you are telling us that there are other common hierarchical forms. The tree is the only one I hear about. What are the others you have in mind? Priscilla Oppenheimer wrote: > I was hoping nobody would answer. ;-) Because actually I don't like my > answer. It should read, "A hierarchical network design MAY already be a > tree!" It wouldn't necessarily be a tree. > > Priscilla Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=23915&t=23497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching exam question [7:23497]
Having given it more thought I decided that a hierarchy doesn't have to be a tree. A tree is a diagram or graph that branches from a single stem without forming loops or polygons. A hierarchy could have "loops" or "polygons." In other words, there could be more than one way to get between layers in the hierarchy. Think of the dotted lines we so often see on org charts. When you look at examples of Cisco's hierarchical design, in most cases they aren't actually trees. There are, of course, redundant ways to get between layers. Hierarchy just implies layers and that each layer has a particular job and ranking. I don't think it has a mathematical meaning. In fact (and Howard will like this because it goes with his 7 deadly sins ;-) most of the meanings for hierarchy have to do with the church: 1 a division of angels 2 a ruling body of clergy organized into orders or ranks each subordinate to the one above it; especially : the bishops of a province or nation b : church government by a hierarchy So, it was an off-the-wall comment that made sense when in a hurry and not when given some thought. (Although a lot of systems analysis techniques do assume that hierarchy means tree!??) Did anyone every use IBM's HIPO method: Hierarchy, Input, Process, Output. It worked extremely well. I don't think it would let you use a hierarchy that wasn't also a tree, although I can't remember for sure. Priscilla At 12:17 PM 10/23/01, Jonathan Hays wrote: >Not being trained in topological mathematics I am geussing that you are >telling us >that there are other common hierarchical forms. The tree is the only one I >hear about. >What are the others you have in mind? > >Priscilla Oppenheimer wrote: > > > I was hoping nobody would answer. ;-) Because actually I don't like my > > answer. It should read, "A hierarchical network design MAY already be a > > tree!" It wouldn't necessarily be a tree. > > > > Priscilla Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=23948&t=23497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching exam question [7:23497]
It's a good reminder to me that it's easy to take a term for granted or get stuck in a rut concept-wise, when one is hears the same terms (in this case "hierarchy") over and over. Priscilla Oppenheimer wrote: > Having given it more thought I decided that a hierarchy doesn't have to be > a tree. A tree is a diagram or graph that branches from a single stem > without forming loops or polygons. > > A hierarchy could have "loops" or "polygons." In other words, there could > be more than one way to get between layers in the hierarchy. Think of the > dotted lines we so often see on org charts. > > When you look at examples of Cisco's hierarchical design, in most cases > they aren't actually trees. There are, of course, redundant ways to get > between layers. > > Hierarchy just implies layers and that each layer has a particular job and > ranking. I don't think it has a mathematical meaning. In fact (and Howard > will like this because it goes with his 7 deadly sins ;-) most of the > meanings for hierarchy have to do with the church: > > 1 a division of angels > 2 a ruling body of clergy organized into orders or ranks each subordinate > to the one above it; especially : the bishops of a province or nation b : > church government by a hierarchy > > So, it was an off-the-wall comment that made sense when in a hurry and not > when given some thought. > > (Although a lot of systems analysis techniques do assume that hierarchy > means tree!??) Did anyone every use IBM's HIPO method: Hierarchy, Input, > Process, Output. It worked extremely well. I don't think it would let you > use a hierarchy that wasn't also a tree, although I can't remember for sure. > > Priscilla Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=23990&t=23497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching exam question [7:23497]
Ah, good old HIPO Charts. I vaguely remember using them about 20-30 years ago. Prof. Tom Lisa, CCAI Community College of Southern Nevada Cisco Regional Networking Academy Priscilla Oppenheimer wrote: > Having given it more thought I decided that a hierarchy doesn't have to be > a tree. A tree is a diagram or graph that branches from a single stem > without forming loops or polygons. > > A hierarchy could have "loops" or "polygons." In other words, there could > be more than one way to get between layers in the hierarchy. Think of the > dotted lines we so often see on org charts. > > When you look at examples of Cisco's hierarchical design, in most cases > they aren't actually trees. There are, of course, redundant ways to get > between layers. > > Hierarchy just implies layers and that each layer has a particular job and > ranking. I don't think it has a mathematical meaning. In fact (and Howard > will like this because it goes with his 7 deadly sins ;-) most of the > meanings for hierarchy have to do with the church: > > 1 a division of angels > 2 a ruling body of clergy organized into orders or ranks each subordinate > to the one above it; especially : the bishops of a province or nation b : > church government by a hierarchy > > So, it was an off-the-wall comment that made sense when in a hurry and not > when given some thought. > > (Although a lot of systems analysis techniques do assume that hierarchy > means tree!??) Did anyone every use IBM's HIPO method: Hierarchy, Input, > Process, Output. It worked extremely well. I don't think it would let you > use a hierarchy that wasn't also a tree, although I can't remember for sure. > > Priscilla > > At 12:17 PM 10/23/01, Jonathan Hays wrote: > >Not being trained in topological mathematics I am geussing that you are > >telling us > >that there are other common hierarchical forms. The tree is the only one I > >hear about. > >What are the others you have in mind? > > > >Priscilla Oppenheimer wrote: > > > > > I was hoping nobody would answer. ;-) Because actually I don't like my > > > answer. It should read, "A hierarchical network design MAY already be a > > > tree!" It wouldn't necessarily be a tree. > > > > > > Priscilla > > > Priscilla Oppenheimer > http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=23993&t=23497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Switching exam question [7:23497]
I would think this reference would apply to a trunk going from an L2 device to an L3 device. It would make sense to shut off STP since it's not needed in this situation and the L3 device may not recognize STP and report those frames as invalid causing error stats to increment. -Julian ""Leigh Anne Chisholm"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... : Actually, Cisco teaches that in certain circumstances in the Core, you want : to disable Spanning Tree Protocol (STP). I don't have the courseware with : me at the moment, but I guess the thinking is that with Core layer devices, : you don't run anything extraneous that takes away from the primary role of : high-speed packet switching. STP is considered extraneous when it's not : required. : : Instead of me posting from Cisco's course material once I'm at home, why not : search Cisco for this information... if you're interested in knowing more. : : : -- Leigh Anne : : > -Original Message- : > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of : > Jonathan Hays : > Sent: Friday, October 19, 2001 2:20 PM : > To: [EMAIL PROTECTED] : > Subject: Re: Switching exam question [7:23497] : > : > : > Yes. For the server to have a fully redundant connection it must have a : > second NIC to : > another switch and failover software in place. : > : > However, you are mistaken that anyone would normally disable STP on any : > trunk port, : > regardless of whether the switch is in the Core, Distribution, or Access : > layer. : > : > Piatnitchi Cristian wrote: : > : > > Please see this link : > > : > > http://www.geocities.com/cristi_piatnitchi/ : > > This is picture from the Cisco site. : > > : > > Could you explain me how the redundacy is achieved for the : > server present : > on : > > this scheme ? : > > In my opinion if there is no STP in the L2 core and nor a : > second connection : > > from the server to the other switch "cb" : > > there is no protection against of a failure of switch "ca". So : > I consider : > is : > > useless to have redundancy in the access and : > > distribution layers. Am I wrong ? If yes why ? : > > : > > Thanks in advance : > > Cristian : : : : [EMAIL PROTECTED] : Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=24002&t=23497 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: switching , cisco exam question [7:42]
c -Original Message- From: Arthur Simplina [mailto:[EMAIL PROTECTED]] Sent: Tuesday, April 10, 2001 4:22 PM To: [EMAIL PROTECTED] Subject: switching , cisco exam question [7:42] Which are true: a. the latency of the store and forward switching method will be dependent upon frame length b. the cut-through switching method will provide forerror checking c. the latency of the cut-through switching method is dependdent upon frame length c. the store and forward switching method will provide for error checking d. the cut-through switcing method will send the frame as soon as the destination layer 3 address is read FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=45&t=42 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
