Re: Off Topic - Riddle - "The Obvious Question" [7:38336]
A wise person once told me that it takes three things to make a project possible. It must be technically feasible, politically feasible, and financially feasible. The small college in question in this case has no interest in doing anything except providing the means for students living in dormitories to have POTS in their rooms ( no cracks from you dopers! ) They wanted a cheap way to double the number of POTS phones without having to pull new copper. So in terms of VoIP proposals, numbers two and three just weren't there. Not when they can pull copper for 20K and the best I could come up with on the VoIP side weighed in at around 100K. A full blown AVVID came in at around 175K, and did not include the monthly recurring for some ISDN PRI's for PSTN connectivity. Not to mention that now the college would have to take responsibility for billing. BTW, anyone worked with the VG248 box? I got mixed signals from Cisco about whether or not this box had to work in conjunction with a Call Manager, or if it could be used in conjunction with a router, thus providing 48 FXS ports for router to router VoIP. Chuck ""Hartnell, George"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Interesting, sometimes the obvious can be elusive. "Pull more copper", is > the obvious. Depending upon the telco layout, of course. > > But, like many of Chuck's musings, this brings up some more "real world" > questions. > > Given: Investment in analog/digital cu based phone sets at buildings. >A score, or more, of PBX's currently on telco copper. > New fiber to each PBX building for voice and data. (6 strands, sm) > > What transport over that fiber would be most cost-effective in the near > term? > How about the longer-term? > Where would convergence fit in the calculations? > > Let'see. Fiber T1 modems are simple, easy. Pluses. Minus? Old > technology, difficult for data guys to manage well, no convergence factor. > > IP transport for telephones over the fiber pair. Pluses, data guys > understand IP, ok convergence path. Bit more costly, currently, though. > > True VoIP. Haven't heard really glowing reports from large scale, lower > budget, institutions,...yet. "The" convergence path. Costly. Throw out > yer copper investment(s). > > Of course this is not an exhaustive discussion. Just a number of ways > 'round the communications barn. > > Best, G. > VP OGC > > > > > Subject: Off Topic - Riddle - "The Obvious Question" [7:38336] > > > > Hint - consider the ways one might convert analogue to optic. > > > > Chuck Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38532&t=38336 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: can somone explain "Asynchronous Host Mobility " [7:38481]
I haven't used this, but it sounds like it is used to extend the access-server which has usernames, etc on it to another remote location for example. So a user can dial into a router locally and the router builds a tunnel/VPN-like connection and passes the dial-up users requests to the access-server so they get the same IP info, etc as they were dialed into the access-server itself. It is confusing however, because it sounds like the user dials in and types "tunnel (name)" at the CLI to establish this. Probably one of those obsure features that no one really used so not much documentation on it. Hmm... going to have to add this to my list-of-things to try. --- Eric Waguespack wrote: > you enable it on the traget with > > router_a(config)#ip tcp async-mobility server > > then activate it from another router: > > router_b#tunnel router_a > > it acts just like a telnet session, only slower, and > over port 57 > > what is this for? > > i am guessing that this is legacy or simply not used > much due to the lack of helpfull documentation > related > to it on cco.. the link is: > > http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/dialts_c/dtsprt4/dcdasppp.htm > > __ > Do You Yahoo!? > Yahoo! Sports - live college hoops coverage > http://sports.yahoo.com/ [EMAIL PROTECTED] __ Do You Yahoo!? Yahoo! Sports - live college hoops coverage http://sports.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38531&t=38481 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: what does SC0: stand for? [7:38517]
SC = Serial Console SL = SLIP (from before PPP days - anyone remember Trumpet? those were the days!). Erick B. --- "TALBOT, WILLIAM P (SWBT)" wrote: > Probably "switch console" or "system console" > > Good question though, I am curious to see what it > really means. > > Pat > > -Original Message- > From: Eric Waguespack [mailto:[EMAIL PROTECTED]] > Sent: Friday, March 15, 2002 10:46 PM > To: [EMAIL PROTECTED] > Subject: RE: what does SC0: stand for? [7:38517] > > > thanks, but i know what it is and how to use it, > what > i am curious about is what it stands for, SC0 .. for > example tty stands for teletype. > > > > > --- "TALBOT, WILLIAM P (SWBT)" wrote: > > Quoting from CCO: > > > > The interface sc0 is an internal management > > interface that is connected to > > the switching fabric and participates in all of > the > > functions of a normal > > switch port, such as Spanning-Tree Protocol (STP), > > Cisco Discovery Protocol > > (CDP), and VLAN membership. > > > > taken from > > http://www.cisco.com/warp/public/473/8.html > > > > Hope this helps, > > > > Pat > > > > -Original Message- > > From: Eric Waguespack > [mailto:[EMAIL PROTECTED]] > > Sent: Friday, March 15, 2002 10:07 PM > > To: [EMAIL PROTECTED] > > Subject: what does SC0: stand for? [7:38517] > > > > > > any idea? __ Do You Yahoo!? Yahoo! Sports - live college hoops coverage http://sports.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38530&t=38517 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Policy routing - interface or subinterface? [7:38528]
Yes, you can do this on a subinterface. I was doing it just yesterday in conjunction with an IPsec, GRE, NAT, and policy routing scenario. And -- surprisingly -- it worked! John On Sat, 16 Mar 2002, Chuck ([EMAIL PROTECTED]) wrote: > Just verifying something I am seeing in my lab. > > All examples of policy routing that I can find, both in Doyle and on > CCO, > show policy routing as taking place on the physical interface. I can > find no > examples indicating that policies can be set on a subinterface. > > However, I am finding in my lab that separate policies can indeed be set > up > on different subinterfaces. > > Any comments from the field, based either on real world or lab rat > experience? > > ( and yes, I have a customer, and I am testing this because I did the > design > before I studied the feasibility :-> ) > > Chuck [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38529&t=38528 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Policy routing - interface or subinterface? [7:38528]
Just verifying something I am seeing in my lab. All examples of policy routing that I can find, both in Doyle and on CCO, show policy routing as taking place on the physical interface. I can find no examples indicating that policies can be set on a subinterface. However, I am finding in my lab that separate policies can indeed be set up on different subinterfaces. Any comments from the field, based either on real world or lab rat experience? ( and yes, I have a customer, and I am testing this because I did the design before I studied the feasibility :-> ) Chuck Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38528&t=38528 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: what does SC0: stand for? [7:38517]
Probably "switch console" or "system console" Good question though, I am curious to see what it really means. Pat -Original Message- From: Eric Waguespack [mailto:[EMAIL PROTECTED]] Sent: Friday, March 15, 2002 10:46 PM To: [EMAIL PROTECTED] Subject: RE: what does SC0: stand for? [7:38517] thanks, but i know what it is and how to use it, what i am curious about is what it stands for, SC0 .. for example tty stands for teletype. --- "TALBOT, WILLIAM P (SWBT)" wrote: > Quoting from CCO: > > The interface sc0 is an internal management > interface that is connected to > the switching fabric and participates in all of the > functions of a normal > switch port, such as Spanning-Tree Protocol (STP), > Cisco Discovery Protocol > (CDP), and VLAN membership. > > taken from > http://www.cisco.com/warp/public/473/8.html > > Hope this helps, > > Pat > > -Original Message- > From: Eric Waguespack [mailto:[EMAIL PROTECTED]] > Sent: Friday, March 15, 2002 10:07 PM > To: [EMAIL PROTECTED] > Subject: what does SC0: stand for? [7:38517] > > > any idea? > > > > __ > Do You Yahoo!? > Yahoo! Sports - live college hoops coverage > http://sports.yahoo.com/ [EMAIL PROTECTED] __ Do You Yahoo!? Yahoo! Sports - live college hoops coverage http://sports.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38527&t=38517 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
CCNP exams-The Truth-to Brian Zeitz [7:38526]
i didnt really want to post a reply to yours as im sure some here are tired of this posting. i appreciate your view but would also like to say that what you thought was the intention of my post was actually exactly opposite. first things first: on doing my ccna and even after doing my ccna for months together, i held the ccnp in great esteem and thought of it as difficult to achieve. Then in my company a few friends were given deadlines to get their ccnp's done or they wouldn't get the exam reimbursements. They all completed it in 1 month flat. That opened my eyes and i started thinking. But nothing could convince me the exams are easy. These new ccnp friends of mine had more expereice than me and i put that down as a reason as to how they got their exams done in such a short time. But then, i asked myself if i could put in a hard push and actually try a 1 month deadline myself. A self-imposed deadline wouldnt serve its purpose, i thought but it surely has. You too wont believe me at this moment. Coz you got the ego-image of mine all built up on your mind. And i could assure you that i wouldnt be so lame as to come and tell you guys that the ccnp is easy if its not and mislead juniors by doing that. Lastly, the only thing you said right in your post, to quote you is "Also if the CCNP was so easy for you, probably didn't do it right," well yes, if you are using boson's and exam certification guides which concentrate solely on passing the exam, i wouldnt find it so right. so hey, all it requires to get the ccnp is determination. There are those who after years of experience, take the ccnp and on completion really value it. They land up scoring 900's. Those guys study for days together and attempt the exam and value the ccnp more,much more than me. But that still doesnt make the exams easy. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38526&t=38526 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CCNP Foundations Exam [7:38484]
I completed my CCNP exams in Feburary. I was under the misguided notion that the Foundation exam would have a single pass mark so if I was weak in one area then that would be balance off by others. The exam has three sections corresponding to each of the individual tests and you must pass each. (This is listed on the exam report so this is not an NDA issue) The exam is almost as long as each of the others put together, you save maybe 10 questions on each section, tops! After completing it I have since advised others to go the individual route unless time is a critical issue. The issue of the breadth of the material does drive you a little wild after a while. Example, spanning tree costs and root bridge decisions veruses OSPF costs and DR elections. It starts to run together. The combined exam got me off my butt and completed the CCNP but other than the speed (to pass or fail) I can't recommend it. Also, depending on the path you are taking the BSCI (640-900) exam might provide some more options than the conventional routing exam (640-503) My $0.02 Bill >I recently completed my first step and got my CCNA.I've got quite a bit >of experience, but had never ventured down the Cisco certification track >before. I'm curious if there are any opinions about taking the combined >Foundations exam or taking the individual exams for routing, switching and >remote access. > >The obvious advantages of less time and less money are appealing, but I'm >concerned that the large amount of information and topics could be >overwhelming. > >Anyone that has taken the Foundations wished they would've taken the exams >one at a time? > >Or, anyone that took the three individually, think that the combined test >would've been the better approach? > >My ultimate goal is not as a CCIE, but a CSS1. Any opinions would be >appreciated. > >Regards, > >Larry Youngquist >CISSP, CCNA, MCSE >list/cisco.html >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] -- Bill Kempthorne mailto:[EMAIL PROTECTED] CCAI, CCNP Cisco Regional Academy Instructor Moderator - Schoolnet's Cisco Network Academy Forum Organizer - BC Networking Instructors Roundtable Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38525&t=38484 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: what does SC0: stand for? [7:38517]
thanks, but i know what it is and how to use it, what i am curious about is what it stands for, SC0 .. for example tty stands for teletype. --- "TALBOT, WILLIAM P (SWBT)" wrote: > Quoting from CCO: > > The interface sc0 is an internal management > interface that is connected to > the switching fabric and participates in all of the > functions of a normal > switch port, such as Spanning-Tree Protocol (STP), > Cisco Discovery Protocol > (CDP), and VLAN membership. > > taken from > http://www.cisco.com/warp/public/473/8.html > > Hope this helps, > > Pat > > -Original Message- > From: Eric Waguespack [mailto:[EMAIL PROTECTED]] > Sent: Friday, March 15, 2002 10:07 PM > To: [EMAIL PROTECTED] > Subject: what does SC0: stand for? [7:38517] > > > any idea? > > > > __ > Do You Yahoo!? > Yahoo! Sports - live college hoops coverage > http://sports.yahoo.com/ [EMAIL PROTECTED] __ Do You Yahoo!? Yahoo! Sports - live college hoops coverage http://sports.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38524&t=38517 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Design Best Practices [7:38453]
Take a look at some campus design guides on CCO. http://www.cisco.com/warp/customer/779/largeent/design/campus_index.html Tom Petzold Cisco Systems -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Jeffrey Reed Sent: Friday, March 15, 2002 2:41 PM To: [EMAIL PROTECTED] Subject: Design Best Practices [7:38453] Im rather new to the Cisco world but have with other vendors. I need some help with design Best Practices. Recently there was a post that told us the max switch hop in a network should be about 7 hops. As a reseller, I am working with a customer who has the following network design: Internet-3600-PIX-6500(r)-G-6500(s)-G-5500-5000-3500-1900-10M-3COMhub Unless indicated by a G or 10M, the link between devices is 100M. The 6500(r) does all the routing, the 6500(s) is where about 7 5500s hang off on Gig fiber. Each 5500 has about 3-4 5000s connected with 100M fiber. Each 5000 has about 10-12 3500s which have about 8-12 1900s. Each of the 1900s have about 4-8 3COM 10M hubs with students. Their teachers and admin staff sit on 10m & 100M links in the 5500s & 5000s. The 6500(s) has about 200 users via 100M. All the links support trunking until you hit a 1900. Ive over-simplified for this example, but I think you get the idea. This network just sort of grew this way over the years. Older equipment is pushed out to the edge as newer equipment is installed in the core. They report a lot of random problems all blamed on the network. Their firmware is pretty up to date and the hardware is reliable. While they are still using AppleTalk, a little IPX and mostly IP, I believe their network is too complex with all the switch hops. I want to propose a redesign that puts a user no more than three hops from the core 6500. This may mean new single mode fiber in some locations and upgrades to hardware in other locations. Im not looking for design help, Im looking for a smooth way of telling the customer their design is the problem, not the hardware itself. Any suggestions on how you have approached a customer or better yet, your boss, on the need to have a proper design, even if it means additional investment in fiber and effort to implement?? I appreciate the help from this group Jeff Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38523&t=38453 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Firmware Releases: Cisco Compared to Microsoft [7:38454]
12.1(3)XT, 12.1(5)YB, 12.2(2)XH, 12.2(2)XK, 12.2(4)T This was found using the Hardware Software Compatibility Matrix at: http://www.cisco.com/cgi-bin/front.x/Support/HWSWmatrix/hwswmatrix.cgi -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Mark Odette II Sent: Friday, March 15, 2002 7:44 PM To: [EMAIL PROTECTED] Subject: RE: Firmware Releases: Cisco Compared to Microsoft [7:38454] Just a wild-hare guess... but was the other vendor called 3COM?!?! The way you just described it has been repeated by many NBX techs that I've dealt with over the last 8 months. :) Cisco's IOS updates have their gotchas too, but I've yet to experience one myself, save the exception of only a few key versions of IOS have support for the WIC-1ENET card that goes in the 1700 Routers. :( Nothing like being stuck at 12.1.5(YB1-4), when the rest of the crew is using 12.2.x :( Speaking of that, is there anyone out there that knows of a newer version of IOS for the 1750 that supports Voice and the WIC-1ENET Module simultaneously?!?! Mark Odette II -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Jeffrey Reed Sent: Friday, March 15, 2002 1:41 PM To: [EMAIL PROTECTED] Subject: Firmware Releases: Cisco Compared to Microsoft [7:38454] Me again new to the Cisco world. The last vendor I worked with will rename nameless for now, but they had a lot of firmware releases and it would drive us nuts with all the fixes and patches. Worse were the few times they would release a new level of firmware and break something that was working before the upgrade. They reminded me a lot of Microsoft. With all the patches and fixes, its a full time job keeping up with the required patch levels and investigating release notes to make sure nothing else is going to break. Am I going to experience similar problems in the Cisco world? I have customers who are utilizing some advanced features, but not many are bleeding-edge. Those of you who have been using Cisco products for quite some time, whats your process on firmware upgrades?? When do you decide to upgrade and when do you decide to wait for the next release. If I want to run basic things like 802.1Q, prioritized output queues, channeling etc, am I safe running on one version of code for a year or two? I know this is a loaded question, but Im curious what we should expect in larger networks. Should a customer expect all roses with Cisco as compared to the thorns of Microsoft?? Thanks again!! Jeff Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38522&t=38454 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Firmware Releases: Cisco Compared to Microsoft [7:38454]
If you want maximum stability choose a GD release. If you're satisfied with the features and your network is performing to your requirements don't touch it. If it running well there's no reason to make changes short of security bugs. If that's the case there will always be an updated GD release to transition too. Cisco IOS Release process http://www.cisco.com/warp/public/cc/pd/iosw/prodlit/iosrp_ds.htm Change Management Process http://www.cisco.com/warp/customer/432/change-mgmt.html Tom Petzold Cisco Systems -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Jeffrey Reed Sent: Friday, March 15, 2002 2:41 PM To: [EMAIL PROTECTED] Subject: Firmware Releases: Cisco Compared to Microsoft [7:38454] Me again new to the Cisco world. The last vendor I worked with will rename nameless for now, but they had a lot of firmware releases and it would drive us nuts with all the fixes and patches. Worse were the few times they would release a new level of firmware and break something that was working before the upgrade. They reminded me a lot of Microsoft. With all the patches and fixes, its a full time job keeping up with the required patch levels and investigating release notes to make sure nothing else is going to break. Am I going to experience similar problems in the Cisco world? I have customers who are utilizing some advanced features, but not many are bleeding-edge. Those of you who have been using Cisco products for quite some time, whats your process on firmware upgrades?? When do you decide to upgrade and when do you decide to wait for the next release. If I want to run basic things like 802.1Q, prioritized output queues, channeling etc, am I safe running on one version of code for a year or two? I know this is a loaded question, but Im curious what we should expect in larger networks. Should a customer expect all roses with Cisco as compared to the thorns of Microsoft?? Thanks again!! Jeff Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38521&t=38454 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: what does SC0: stand for? [7:38517]
Quoting from CCO: The interface sc0 is an internal management interface that is connected to the switching fabric and participates in all of the functions of a normal switch port, such as Spanning-Tree Protocol (STP), Cisco Discovery Protocol (CDP), and VLAN membership. taken from http://www.cisco.com/warp/public/473/8.html Hope this helps, Pat -Original Message- From: Eric Waguespack [mailto:[EMAIL PROTECTED]] Sent: Friday, March 15, 2002 10:07 PM To: [EMAIL PROTECTED] Subject: what does SC0: stand for? [7:38517] any idea? __ Do You Yahoo!? Yahoo! Sports - live college hoops coverage http://sports.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38520&t=38517 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Way OT (Sorry) RE: you American need to think [7:38323]
It's *Americans* - plural, as in lots of Americans, more than one, but still one. Many united, FOCUSED Americans. And by the way, we *are* thinking. We are thinking about which parties are going to be next in line to be recipients of the large amounts of ordinance that will be dropped by our Air Force as an example of what happens to people who attack or support people who attack innocent civilians in office buildings; or anywhere else for that matter. -Original Message- From: Jim Bond [mailto:[EMAIL PROTECTED]] Sent: Thursday, March 14, 2002 6:26 PM To: [EMAIL PROTECTED] Subject: OT: you American need to think [7:38323] Sorry for wasting your bandwidth, but I have to say this. Being rich is good; being smart is good. But if you treat others like sxxt, others will treat you like sxxt too. Think about this: if you are a CCNA and your CCIE co-worker say your "stupid" or "dumb", will you respect him? There are so many knowledgeable and friendly people on this list, but there are some rude and arrogant people too. I agree that Bin Laden is a murderer, an evil, but you American need to think why he only attacks US, not Germany or Russia or Japan or others. Show some respect to others, it won't make you poor. Also remember that there are always someone richer and smarter than you. Over. Dismiss. Jim __ Do You Yahoo!? Yahoo! Sports - live college hoops coverage http://sports.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38519&t=38323 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
anyone taken the ccnp or ccdp recert test? [7:38518]
care to give me your general impression? did it hit on routing more than switching or remote access? any info that doesn't break the nda would be great. __ Do You Yahoo!? Yahoo! Sports - live college hoops coverage http://sports.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38518&t=38518 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
what does SC0: stand for? [7:38517]
any idea? __ Do You Yahoo!? Yahoo! Sports - live college hoops coverage http://sports.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38517&t=38517 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CCNP Foundations Exam [7:38484]
if you dont try you will not success... go and take the foundation exam... you can pass CCNA...means you can also get CCNP easily ""Larry Youngquist"" I recently completed my first step and got my CCNA.I've got quite a bit > of experience, but had never ventured down the Cisco certification track > before. I'm curious if there are any opinions about taking the combined > Foundations exam or taking the individual exams for routing, switching and > remote access. > > The obvious advantages of less time and less money are appealing, but I'm > concerned that the large amount of information and topics could be > overwhelming. > > Anyone that has taken the Foundations wished they would've taken the exams > one at a time? > > Or, anyone that took the three individually, think that the combined test > would've been the better approach? > > My ultimate goal is not as a CCIE, but a CSS1. Any opinions would be > appreciated. > > Regards, > > Larry Youngquist > CISSP, CCNA, MCSE Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38516&t=38484 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Layer 3 switch ? [7:38358]
Great answer, Howard. We like to think of a router as having a simple table like this: prefix next-hop prefix next-hop prefix next-hop But, from my limited knowledge, I don't believe any modern day router really stores "address lookup" data in this way. They don't use trees any more either. In recent reading, I found information about multbit tries (not a typo). I was just surfing, but I think you can find information about tries at Cisco's site too. CEF uses a trie also. Also, from my surfing I have discovered that computer science departments these days have computer networking classes in "Switching Systems." These classes cover the processing required of any network switch, whether it's switching cells, L2 frames, L3 packets, etc. This course at Washington University in St. Louis has a good Web site: http://boushi.arl.wustl.edu/~jst/cs/577/ Well, it is a Friday night in March. So instead of looking at more university computer science Web sites, I think I will now go watch some college basketball! Priscilla At 07:50 PM 3/15/02, Howard C. Berkowitz wrote: >At 6:44 PM -0500 3/15/02, mlh wrote: > >no, IRB is a technique integrating routing and bridging. > >but switching routers use hardware switching technique > >which based on layer 3 address not layer 2 address. > >this is one of the differences between router switches > >and switching routers. > >it's my point, pls correct it. > > >Again speaking from router design experience, the difference between >layer 3, label, and layer 2 forwarding is less profound than one >might think. > >The frame arrives on the ingress port and gets buffered and >validated. I'll ignore VLANs. Assuming it were an Ethernet frame, the >forwarder would extract the first 6 bytes. If it were an ordinary >packet, it would extract the destination IP address (Bytes 12-15 >following the LLC field if one is present). If it's MPLS, it extracts >the 32 bits following the data link header. > >MAC addresses get looked up directly, possibly in a CAM. Admittedly, >that's probably faster than radix tree lookup, discussed next, but >destination lookup time is rarely the limiting factor in >router/switch performance. It's pretty much a solved problem. The >size of routing/forwarding tables is much more limited by the ability >of the routing protocols to reconverge in a reasonable time than the >time of search. FIBs generally have a constant lookuo time. > >Some masking is applied to the IP and MPLS addresses, and then the >prefix or label is usually looked up in some sort of radix tree in >static RAM. > >Any of these searches pop up the destination port (not address) if >one is known, plus other information about processing (e.g., QoS). >Statistics are incremented, error check fields are checked, and the >packet/frame goes to the fabric. Crossbar fabrics usually are >nonblocking, while shared busses may need buffering. > >Bottom line: layer 2 switch, layer 3 switch, MPLS switch, router, >etc., are more marketing than architectural distinctions. There are >differences between MPLS Label Edge Routers and Label Switched >Routers, before we get into the GMPLS non-packet forwarders (e.g., >wavelength switches). > >Remember what Cisco calls something in its literature, but don't >obsess over arbitrarily fitting one box into a category. > > > > >- Original Message - > >From: "Chuck" > >To: > >Sent: Friday, March 15, 2002 11:24 AM > >Subject: Re: Layer 3 switch ? [7:38358] > > > > > >> so if I enable IRB on my 2501, I now have a layer 3 switch? ;-> > >> > >> > >> ""mlh"" wrote in message > >> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > >> > According to Clark's Cisco LAN Switching(page 452 ), > >> > layer 3 switching techniques can be grouped > >> > into two categories: > >> > Routing switches > >> > Switching routers > >> > > >> > mlh > >> > > >> > - Original Message - > >> > From: "Larry Letterman" > >> > To: > >> > Sent: Friday, March 15, 2002 2:48 AM > >> > Subject: RE: Layer 3 switch ? [7:38358] > >> > > >> > > >> > > A true router, 2621/3640/7200, is not usually considered > >> > > a L3 switch. A 6500 with an MSFC module installed can be > >> > > is a L3 switch and will perform L2/L3 routing and switching. > >> > > > >> > > A 6500 without the MSFC module is just a large high speed switch, > >> > > capable of only L2 switching. > >> > > > >> > > A layer 3 switch usually routes the first packet in the flow of data > >> > > and then switches the rest in the switching hardware. This is why L3 > >> > > routing/switching is quite a bit faster. A traditional router will >use > >> > > IOS software to determine routes and the switch each packet between > >the > >> > > interfaces in the router. > >> > > > >> > > > >> > > Larry Letterman > >> > > Cisco Systems > >> > > [EMAIL PROTECTED] > >> > > > >> > > > >> > > -Original Message- > >> > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf >Of > >> > > John
OT: CCNP Prep and Certification Libary for sale or trade [7:38514]
Willing to sale or to trade : Cisco Certification Library Cisco Preparation Library Please contact me on the e-mail F. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38514&t=38514 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Packet loss on OSPF LAN [7:38397]
At 07:02 PM 3/15/02, Steven A. Ridder wrote: >yeah, if the pings are bad then one can assume the game is bad. That's a bad assumption. I think there's a good chance the pings aren't working because of access lists and/or ICMP rate-limiting. I suspected rate-limiting because he mentioned that they fail every 60 seconds. That's the point I've been trying to make. You can't test with just pings. He never told us about any testing of the actual game. Can't you imagine a bunch of gamers complaining about ping latency because they think they sound tekkie, but not knowing for sure if they are actually having any problems playing the game, and if they are, not knowing if its due to latency or ineptitude? Well, we may never get through to each other. (I used to teach in a high school, though, so don't assume I'm totally ignorant about games. ;-) Priscilla > If the >pings ever get to normal, game will be OK. Since the pings are bad right >now, the game will have major lag in it and won't be fun to play because >everyone else will kill you because your character "freezes" as the game >tries to send the character's coordinates to the gaming server. If the >gameserver dosne't receive the coordinates it thinks that charater isn't >moving so other player sees character as jus standing there and they shoot >you. A game is just a streamin app, but there is no jitter buffer because >everything is in real time. > >-- > >RFC 1149 Compliant. > > >""Priscilla Oppenheimer"" wrote in message >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > At 05:54 PM 3/15/02, Steven A. Ridder wrote: > > >I don't think so. I assume if the pings are OK, then the games will be >OK. > > > > He said the pings aren't OK. This doesn't mean the game isn't OK. > > > > >It's just if they packets stop coming in for a few seconds, his the game > > >lags and slows everyone down because the game can't update the server his > > >coordinates. > > > > > >-- > > > > > >RFC 1149 Compliant. > > > > > > > > >""Priscilla Oppenheimer"" wrote in message > > >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > > So he needs to test by running the game, not by pinging. > > > > > > > > At 03:10 PM 3/15/02, Steven A. Ridder wrote: > > > > >Games don't ping, but they need low latency, otherwise you get killed > > >when > > > > >there is tons of delay. I can attest to it first hand : ) > > > > > > > > > >-- > > > > > > > > > >RFC 1149 Compliant. > > > > > > > > > > > > > > >""Priscilla Oppenheimer"" wrote in message > > > > >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > > > > Is something rate limiting ping replies? That's a common technique > > for > > > > > > avoiding hacker attacks. Do your gamers really need ping to >work??? > > > > > > > > > > > > Priscilla > > > > > > > > > > > > At 02:32 PM 3/15/02, travis marlow wrote: > > > > > > >If you will, I will walk down from the Internet. We are > > load-sharing > > >a > > > > > > >connection to ATT and GBLX, each DS-3 terminates on it's own >router > > >that > > > > > > >have HSRP between them. These "Internet" routers are connected >to a > > > > 6509 > > > > > > >that also has two more routers connected that handle some T1's >and > > >some > > > > > > >cable modem customers. Between these four routers there is iBGP >and > > > > OSPF > > > > > > >running. If I'm a cable modem customer and I'm pinging out to >the > > >other > > > > > > >side or this side of the Internet DS-3 then I will see until >about > > >ever > > > > > > 60-62 seconds it will increase for one ping to 220ms and > > > > > > >then drop three consecutive pings and then go right back to I'm > > > > >completely > > > > > > at a loss why I'm getting loss, the 6509 isn't even hardly > > > > > > >tapped and the routers are doing fine on resources. Max ethernet > > > > > > >utilization is about 20%. Has anybody ever had loss every minute >or > > >so? > > > > > > >this does not affect regular browsing but the gamers on our >network > > >are > > > > > > >throwing a fit. > > > > > > > > > > > > > > > > > > Priscilla Oppenheimer > > > > > > http://www.priscilla.com > > > > > > > > > > > > Priscilla Oppenheimer > > > > http://www.priscilla.com > > > > > > 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=38513&t=38397 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: OT/ Pass one Lab and hold two CCIE certs ? [7:38402]
> >That's cute, but I think I'll wait for ccie #12648430 > I could use some more of that (C0FFEE). That's a Zero in there, not an OH. > ;-) And there is a 1 in CC1E... > Priscilla HoraPe --- Horacio J. Peqa [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38512&t=38402 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: OT: Change primary ISP from PacBell to Quest [7:38511]
>Thank you for all the input. > >If our company applies for a block of class C IP >address, how can we won't have any down time on the >Web servers and SMTP servers when we switch current IP >addresses to the new class C IP address. After we >change the IP addresses in the DNS server, the change >will take up to 24 hours or even more. > >thank you The only way to avoid downtime is not to switch all at once, but give the server dual addresses if they support them, or have the router respond to both address ranges and NAT to the current address. Typically, you want to do this for at least 5 days and often considerably more. Perhaps a week or two before the cutover, set the TTL in your DNS to minimum values, in order to encourage caches getting cleared of the old address. You will almost certainly have some partial downtime due to hosts that don't refresh their DNS in time. It will get much worse if any HTML applications, for example, use hard-code addresses. It's not a perfect world. Given these questions involve DNS, servers, and other things not on the lab, I suggest the discussion continue on the general list. I've copied both. > >--- "Howard C. Berkowitz" wrote: >> At 8:05 PM + 3/15/02, Brian Lodwick wrote: >> >We had a customer that was on our old old network. >> This network had >> >a different AS and addressing. This customer wanted >> to move to a >> >newer solution we offered, but wanted to keep the >> existing >> >addressing structure. This wasn't much an issue, >> because accoring to >> >our policy we were allowed to advertise any >> customer net above a >> >/24, and they had a /22. The old network advertised >> an aggregate so >> >this more specific range was preferred and the >> transition worked. >> >The reason I went into this whole schpeal is that >> like you said if >> >you get addressing space from one of the providers, >> and you get >> >approval to advertise that range out of the other >> provider as well, >> >you will have sort of a primary / secondary >> solution and will not be >> >able to achieve load sharing. >> >> Untrue. Now, both providers MUST agree to it. Let's >> say there is a >> /24 from provider A's space, which comes out of >> their /16. Provider >> B certainly can advertise the /24, although it >> wouldn't be done in >> usual practice without agreement with A. >> >> Now, the subtle point. Once provider A agrees to let >> provider B >> advertise the more-specific, provider A _must_ >> advertise both the /16 >> _and_ a /24 for each multihomed customer. >> Otherwise, as you suggest, >> all traffic would take the more-specific advertised >> by provider B. >> >> >Reason being is the provider you get your >> addressing space from will >> >most likely be advertising to the NAP an aggregate >> so the other one >> >that allows you to advertise the /24 will always be >> preferred over >> >the aggregate. If redundancy is the only >> requirement you would be >> >fine if you had one provider give you addressing >> space and you >> >advertised it out of the other provider as well. >> >I wasn't aware you couldn't purchase a /24 from >> ARIN. I'm not really >> >too knowledgeable on that type of thing. I only cut >> addressing space >> >from our nets when needed for our customers. I have >> never gone out >> >and tried to purchase addressing space from ARIN. >> >> "Purchase" really isn't the right word. Allocation >> is the correct >> term for handing out provider-independent address >> space. ARIN, RIPE >> NCC, and APNIC won't just hand out space to anyone >> that brings them >> money; they will need to see a justification and >> will review your >> efficient utilization if you ask for more. >> >> You can multihome to multiple POPs of the same >> provider, with >> provider-assigned address space. See RFC 1998. You >> can even do this >> with PI space and a private ASN, although it's sort >> of a kludge. See >> RFC 2270. >> >> There are also engineered solutions where two >> providers originate the > > same prefix, which is technically an "inconsistent >> AS" but is not >> uncommon and doesn't really create problems. >> >> The address registries also make no guarantees if >> your address space >> will be globally routable. There is a trend to >> reduce the number of >> prefix length filters, but that also means the >> current routing >> architecture will run out of steam in 4-8 years. >> I'm involved in the >> Internet Research Task Force effort that's just >> starting to look at >> "what comes after the BGP architecture." >> >> > >> >BTW I have a neat HSRP & BGP redundancy solution to >> fix the downfall >> >of using this combination if you'd like to hear >> about it? >> > >> > >> >>From: Vincent Lee >> >>Reply-To: Vincent Lee >> >>To: Brian Lodwick , >> [EMAIL PROTECTED] >> >>CC: [EMAIL PROTECTED] >> >>Subject: RE: OT: Change primary ISP from PacBell >> t
Re: Tweaking a memory hungry IOS - 4500-M [7:38369]
yupdownload the IP version only :) George Siaw wrote: > Guys, > > Just wondering, is there a way to tweak an IOS with 32MB memory > requirement to run on 16Mb without a software forced crash? It's a lab > router so can afford "Cisco's blue screen of death". > > George. > > _ > 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=38510&t=38369 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Multiple routes Q [7:38353]
2 routing protocols, rip and EIGRP, have the same network being advertised, guess what, that network will only be installed by EIGRP Hunt Lee wrote: > Could someone help me get a clear understanding about this: > > I understand that when multiple routes exist in a routing table, the route > with the "longest match" will be chosen. Administrative Distance will only > breaks a tie between two routes of equal length. > > So, what is the "metric" for? When will a router uses "metric" to select a > route e.g. to select a route via Router A since it is metrically closer than > Router B to Router C. > > Thanks Everyone in advance. > > Best Regards, > Hunt Lee > System Engineer > WebCentral Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38509&t=38353 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: you American need to think [7:38323]
Correctonly in America we order a double-cheese burger, large fries and a Diet Coke :) Mike Sweeney wrote: > I think you folks are missing a valuable point and lesson here. > > The real point has nothing to do with if *Jim* is correct, a flame baiter, a > pond scum commie or my best friend.. it does have everything to do with > something that America is pretty unique about having for US living here. THe > ablility to say virtually ANYTHING you want without fear of the jackboot > crowd coming to visit you and inform you of the error of your ways. > Unintentionly *Jim* has reminded us.. or should remind us that America for > all it's faults is still the one place that people to this day DIE to try to > get to. Why? because Americans come close to being free in the true sense > of the word. You can buy what you want, pick and choose what you want, > sponge off your neighbors, have 8 SUVs, and SAY pretty much what you want. > Oh, there may be repercussions of saying things.. but most times the police > are not going to shoot you down in the street(Kent State excepted) or have > you *disappear*(watch of the unmarked black helicopters) > > So *Jim*.. bad mouth us all you want and personally I will enjoy the fact > that I live in a place where I can read your rants, reply to them or delete > them without fear. > > Long live the Bill of Rights and the US Constitution. May we remember why > they exist and people die for those beliefs. > > MikeS > www.packetattack.com > > PS-- for those that seem to care.. I am neither Right or Left.. I happen to > Libertarian which puts me outside of the box :) Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38508&t=38323 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Does someone know? [7:38322]
check channels, framing linecoding "Ali, Abbas" wrote: > On my 2600 router, I configured the T1 0/0 controller, and the below message > is keep appearing. > > "00:23:10: %CONTROLLER-5-UPDOWN: Controller T1 0/0, changed state to down > (RAI de > tected) > 00:23:12: %LINK-5-CHANGED: Interface Serial0/0:0, changed state to reset > 00:23:13: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0:0, > changed s > tate to down > 00:23:22: %CONTROLLER-5-UPDOWN: Controller T1 0/0, changed state to up > 00:23:24: %LINK-3-UPDOWN: Interface Serial0/0:0, changed state to up > 00:23:25: %LINEPROTO-5-UPDOWN: Line protocol on Interface Serial0/0:0, > changed s > tate to up" Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38507&t=38322 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: frame-relay interface cannot ping itself [7:38205]
check the L2-L3 mappings on both routers MADMAN wrote: > This was just addresses two days ago and John Neiberger gave a more > eloquent answer but if you really need to ping yourself build a map to > yourself. > > Going to be a lot of blind engineers out there :) > > Dave > > Ellis Lam wrote: > > > > I connect router A and router B with frame-relay. > > I am able to ping from A to B but not able to pint router A's interface to > > B, why ? > -- > 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=38506&t=38205 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: CCNP exams-The Truth [7:38249]
Here's a good one. When I took the Routing Exam, I studied with the ACRC book, because the Routing book from Cisco Press wasn't due out for another 10 months at the time! I did decently ok, but the BGP stuff kicked my butt. BGP in the ACRC was like 5 pages long, but in the new Routing book, it's a couple of chapters!! If I hadn't of taken a Boson Practice test, and then followed the references in it for BGP (of which I still didn't prepare long enough on), I would have failed that exam just because of BGP. I got my CCNA off of the V1 test track, and have taken the Routing, Switching, and Remote Access off of the V2 track. Without a decent lab to work with, or lots of OJT field experience in a large environment, I don't see how ANYBODY can pass the CCNP track just by reading the Cisco Press books, and maybe the Exam Crams, and then think they are masters/experts/thoroughly versed in the Cisco Networking technologies. Givem' 6-8 weeks away from the subject, and then put their feet to the fire, and see if they can walk the walk... I seriously doubt it (speaking from experience... cuz you either Use it, or Loose it). IMO, constantly read, and re-read different subjects that your not using regularly, and don't just read an Exam Cram to go know out the Cisco Exams. You do a considerable disservice to yourself, and all the other professionals you are trying to rank yourself with. It's called Character. Mark -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Leigh Anne Chisholm Sent: Friday, March 15, 2002 8:38 AM To: [EMAIL PROTECTED] Subject: RE: CCNP exams-The Truth [7:38249] Actually, I too believe the V2 CCNP exams are too easy - and I don't have years of experience working on Cisco equipment. The sections of the CCNP test I scored highest on were those that I learned the night before, or the day of. Just reading a chapter 24 hours prior to taking the exam was better preparation than skimming chapters of information I knew. Does that make sense? The CCNP questions were based way too closely on the CCNP course guides. I posted a message about this some time back, and said that Cisco was its own worst enemy--it was the one that was creating "paper CCNP's" as a result. You shouldn't be able to do what I did. Personally, I'm glad the tests are changing--but I'd hope that V3 doesn't have the same fault as V2. And one final point on this... I wrote the old CCNP ACRC exam and found that one to be quite challenging--nothing like the V2 exams. I also found the CCNA exams (V1 and V2) to be more difficult than the V2 CCNP exams. So in summary - posts about the CCNP exams being "too easy" aren't necessarily "big ego" issues, but rather in some part, based in fact. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Brian Zeitz Sent: Friday, March 15, 2002 7:00 AM To: [EMAIL PROTECTED] Subject: RE: CCNP exams-The Truth [7:38249] I think what happened was the guy that wrote this got his CCNP after years of hard studying, and working on Cisco equipment. Now he has it, he post that it is so easy so Cisco makes it harder. I am sorry, but a person (not saying me) going for CCNA, it might seem like an impossible task. After all the CCNA covers more areas then some of the other exams I believe. My point is that every exam is hard, depending on the persons experience. Well now you have CCNP, you can post over and over how easy it is instead of helping people in this newsgroup. What are you trying to do, trying to get Cisco to make the test harder so you have job security? Also if the CCNP was so easy for you, probably didn't do it right, because between the 4 exams they cover a lot of material. And a lot of the material is very relivant to the CCIE exams as well. How about you stop posting garbage and post something useful to this group. That's great you got your CCNP and now are looking down on everyone. I am sure you don't like it when a CCIE does the same thing to you. Could you check your big ego at the door. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38505&t=38249 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
The new CCNA 640-607 exam [7:38504]
Here's my brief feedback on the new CCNA 640-607 exam. I took the exam 3-15-02. I received 50 questions with a time limit of 75 minutes and a minimum passing score of 849. I received 2 router simulator questions requiring the knowledge to configure a router for access and reconfigure a router after problems had occurred. All other questions were multiple choice with one or more correct answers as noted in the question. The big question that most people have is; will my CCNA 507 exam materials still prepare me for the new 607 exam. The answer is yes. The exam content has not changed and if you know the material and have practiced with real or simulated routers, you will have no problems. I have taken the CCNA 407, and 507 exams and I also have my CCNP and CCDP. Please don't send me questions directly asking what's on the exam as I will only reply with, sorry I am under NDA. Good luck to you. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38504&t=38504 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Layer 3 switch ? [7:38358]
At 6:44 PM -0500 3/15/02, mlh wrote: >no, IRB is a technique integrating routing and bridging. >but switching routers use hardware switching technique >which based on layer 3 address not layer 2 address. >this is one of the differences between router switches >and switching routers. >it's my point, pls correct it. Again speaking from router design experience, the difference between layer 3, label, and layer 2 forwarding is less profound than one might think. The frame arrives on the ingress port and gets buffered and validated. I'll ignore VLANs. Assuming it were an Ethernet frame, the forwarder would extract the first 6 bytes. If it were an ordinary packet, it would extract the destination IP address (Bytes 12-15 following the LLC field if one is present). If it's MPLS, it extracts the 32 bits following the data link header. MAC addresses get looked up directly, possibly in a CAM. Admittedly, that's probably faster than radix tree lookup, discussed next, but destination lookup time is rarely the limiting factor in router/switch performance. It's pretty much a solved problem. The size of routing/forwarding tables is much more limited by the ability of the routing protocols to reconverge in a reasonable time than the time of search. FIBs generally have a constant lookuo time. Some masking is applied to the IP and MPLS addresses, and then the prefix or label is usually looked up in some sort of radix tree in static RAM. Any of these searches pop up the destination port (not address) if one is known, plus other information about processing (e.g., QoS). Statistics are incremented, error check fields are checked, and the packet/frame goes to the fabric. Crossbar fabrics usually are nonblocking, while shared busses may need buffering. Bottom line: layer 2 switch, layer 3 switch, MPLS switch, router, etc., are more marketing than architectural distinctions. There are differences between MPLS Label Edge Routers and Label Switched Routers, before we get into the GMPLS non-packet forwarders (e.g., wavelength switches). Remember what Cisco calls something in its literature, but don't obsess over arbitrarily fitting one box into a category. > >- Original Message - >From: "Chuck" >To: >Sent: Friday, March 15, 2002 11:24 AM >Subject: Re: Layer 3 switch ? [7:38358] > > >> so if I enable IRB on my 2501, I now have a layer 3 switch? ;-> >> >> >> ""mlh"" wrote in message >> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... >> > According to Clark's Cisco LAN Switching(page 452 ), >> > layer 3 switching techniques can be grouped >> > into two categories: >> > Routing switches >> > Switching routers >> > >> > mlh >> > >> > - Original Message - >> > From: "Larry Letterman" >> > To: >> > Sent: Friday, March 15, 2002 2:48 AM >> > Subject: RE: Layer 3 switch ? [7:38358] >> > >> > >> > > A true router, 2621/3640/7200, is not usually considered >> > > a L3 switch. A 6500 with an MSFC module installed can be >> > > is a L3 switch and will perform L2/L3 routing and switching. >> > > >> > > A 6500 without the MSFC module is just a large high speed switch, >> > > capable of only L2 switching. >> > > >> > > A layer 3 switch usually routes the first packet in the flow of data >> > > and then switches the rest in the switching hardware. This is why L3 >> > > routing/switching is quite a bit faster. A traditional router will use >> > > IOS software to determine routes and the switch each packet between >the >> > > interfaces in the router. >> > > >> > > >> > > Larry Letterman >> > > Cisco Systems >> > > [EMAIL PROTECTED] >> > > >> > > >> > > -Original Message- >> > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of >> > > John Green >> > > Sent: Thursday, March 14, 2002 10:50 PM >> > > To: [EMAIL PROTECTED] > > > > Subject: Layer 3 switch ? [7:38358] >> > > >> > > >> > > Is it ok to refer to a "router" as a Layer 3 switch ? >> > > >> > > cisco 6500 was referred to as a Layer 3 switch. >> > > >> > > question: does it(6500) have routing capabilities ? >> > > - >> > > >> > > to connect to different vlans one needs a router. >> > > right ?? (as shown below) >> > > switchA ROUTER---switchB >> > > >> > > but say some nodes connected to switchB are on the >> > > vlan of switchA. so now to connect switchA and switchB > > > > can router be ok ? -- "What Problem are you trying to solve?" ***send Cisco questions to the list, so all can benefit -- not directly to me*** Howard C. Berkowitz [EMAIL PROTECTED] Chief Technology Officer, GettLab/Gett Communications http://www.gettlabs.com Technical Director, CertificationZone.com http://www.certificationzone.com "retired" Certified Cisco Systems Instructor (CID) #93005 Message Posted at: http://www.groupstudy.com/form/rea
RE: OT/ Pass one Lab and hold two CCIE certs ? [7:38402]
Convert it to Hex and you'll see what's going on... --- Dennis -Original Message- From: Steven A. Ridder [mailto:[EMAIL PROTECTED]] Sent: Friday, March 15, 2002 11:28 AM To: [EMAIL PROTECTED] Subject: Re: OT/ Pass one Lab and hold two CCIE certs ? [7:38402] I'm slow guys and gals, what with all these numbers after the CCIE? What CCIE #52254 summposed to mean? -- RFC 1149 Compliant. ""Dennis Laganiere"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > That's cute, but I think I'll wait for ccie #12648430 > > --- Dennis > > -Original Message- > From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]] > Sent: Friday, March 15, 2002 10:35 AM > To: [EMAIL PROTECTED] > Subject: Re: OT/ Pass one Lab and hold two CCIE certs ? [7:38402] > > > I get it! ;-) > > Priscilla > CNX 01CCDD > > At 11:49 AM 3/15/02, Phil Barker wrote: > >What about the one who passes out as CCIE #52254 ? > > > >Phil. > > --- John Neiberger > >wrote: > Change your last name to Ccie? :-) > > > > > > Or, include both the written and lab exam, e.g. John > > > Neiberger, CCIE > > > Written, CCIE R&S #12005. > > > > > > Nah, because only one of those is a cert. I give > > > up, what's the trick? > > > > > > > > > John > > > > > > >>> "Phil Barker" > > > 3/15/02 8:44:23 AM >>> > > > How can you get CCIE after your name twice by only > > > passing 1 CCIE Lab exam ? > > > > > > > > > PS : Lateral thinking may be required > > > > > > > > > Phil. > > > > > > __ > > > Do You Yahoo!? > > > Everything you'll ever need on one web page > > > from News and Sport to Email and Music Charts > > > http://uk.my.yahoo.com > >[EMAIL PROTECTED] > > > >__ > >Do You Yahoo!? > >Everything you'll ever need on one web page > >from News and Sport to Email and Music Charts > >http://uk.my.yahoo.com > > > Priscilla Oppenheimer > http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38501&t=38402 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: ANY alternate for Cisco VIC [7:38411]
Kiran- I don't really know of a Generic PC Solution for Voice Applications as compared to the use of the Cisco VIC2FXS router modules, but Cisco as well as a few competitors have "Soft-PBXs" that use proprietary Line cards in a PC... if I remember right. The Cisco AVVID solutions use Compaq, and I think IBM and HP Servers, with special PCI-based cards in conjunction with Cisco Voice-Access Servers (Routers, ICS7750, 3600, 2600, 1700 series) to this. One of the competitors (I think they're called Agilent) uses similar architecture. As for the VIC2FXS, to my knowledge, you have to have a NM-1V, or a NM-2V to use VIC2FXS card. The (N)et(M)odule-1/2V is the Digital Signal Processor part of the Voice technology, and the VIC2FXS is just the analog interface. Alternatively, you could use a Cisco 1750/51/60-2/4/6V Router and plug the VIC2FXS card directly into it for use. The key is that the 1700 routers have to have a DSP chip in them too ( which looks like a stick of SDRAM, but its not;) ). Hope that was of good information. Mark Odette II -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Kiran Kumar M Sent: Friday, March 15, 2002 10:03 AM To: [EMAIL PROTECTED] Subject: ANY alternate for Cisco VIC [7:38411] Hai, Is there any alternate card in PC for voice communication, with similar functions like CISCO VIC2FXS. And also is it possible to use VIC2FXS in NM2FE2W. Thanks, Kiran Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38502&t=38411 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Firmware Releases: Cisco Compared to Microsoft [7:38454]
Just a wild-hare guess... but was the other vendor called 3COM?!?! The way you just described it has been repeated by many NBX techs that I've dealt with over the last 8 months. :) Cisco's IOS updates have their gotchas too, but I've yet to experience one myself, save the exception of only a few key versions of IOS have support for the WIC-1ENET card that goes in the 1700 Routers. :( Nothing like being stuck at 12.1.5(YB1-4), when the rest of the crew is using 12.2.x :( Speaking of that, is there anyone out there that knows of a newer version of IOS for the 1750 that supports Voice and the WIC-1ENET Module simultaneously?!?! Mark Odette II -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Jeffrey Reed Sent: Friday, March 15, 2002 1:41 PM To: [EMAIL PROTECTED] Subject: Firmware Releases: Cisco Compared to Microsoft [7:38454] Me again new to the Cisco world. The last vendor I worked with will rename nameless for now, but they had a lot of firmware releases and it would drive us nuts with all the fixes and patches. Worse were the few times they would release a new level of firmware and break something that was working before the upgrade. They reminded me a lot of Microsoft. With all the patches and fixes, its a full time job keeping up with the required patch levels and investigating release notes to make sure nothing else is going to break. Am I going to experience similar problems in the Cisco world? I have customers who are utilizing some advanced features, but not many are bleeding-edge. Those of you who have been using Cisco products for quite some time, whats your process on firmware upgrades?? When do you decide to upgrade and when do you decide to wait for the next release. If I want to run basic things like 802.1Q, prioritized output queues, channeling etc, am I safe running on one version of code for a year or two? I know this is a loaded question, but Im curious what we should expect in larger networks. Should a customer expect all roses with Cisco as compared to the thorns of Microsoft?? Thanks again!! Jeff Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38500&t=38454 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: TACACS+ Server [7:38324]
For the uninitiated, QA = Quality Assurance and SQA is Software Quality Assurance. :) -Sean -Original Message- From: Sean Knox [mailto:[EMAIL PROTECTED]] Sent: Friday, March 15, 2002 2:39 PM To: [EMAIL PROTECTED] Subject: RE: TACACS+ Server [7:38324] Padding here, padding there, padding everywhere. www.cisco.com buddy. Ever used it? Sarcasm aside, this is a topic that you could have researched yourself with a 5 second search on Cisco or Google. I found these through google actually: TACACS+ Support Page (watch the wrap): http://www.cisco.com/pcgi-bin/Support/PSP/psp_view.pl?p=Internetworking:Taca cs_plus TACACS+ Technical Tips: http://www.cisco.com/warp/public/707/index.shtml#tacacs+ CiscoSecure ACS v2.3 for Solaris: http://www.cisco.com/univercd/cc/td/doc/pcat/sqasux.htm A funny note, check out that HTML page name in that last link... "SQA SUX" or just a coincidence? I work in QA, so maybe I'm just seeing things.. :) - Sean -Original Message- From: Ray Smith [mailto:[EMAIL PROTECTED]] Sent: Friday, March 15, 2002 11:25 AM To: [EMAIL PROTECTED] Subject: Re: TACACS+ Server [7:38324] Solaris buddy. Do you know how to build one? >From: Brian >To: Ray Smith >CC: [EMAIL PROTECTED] >Subject: Re: TACACS+ Server [7:38324] >Date: Thu, 14 Mar 2002 16:52:17 -0800 (PST) > >I suspect that depends slightly on the od u want to use? >BSD, Linux, and Solaris will all run on that, which r u planning to use? > > Bri > >On Thu, 14 Mar 2002, Ray Smith wrote: > > > Does anyone know how to build/setup a TACACS+ Server on a Sparc-5? > > > > Ray > > > > > > _ > > Chat with friends online, try MSN Messenger: http://messenger.msn.com _ Send and receive Hotmail on your mobile device: http://mobile.msn.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38499&t=38324 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Cat/CAT: was RE: you American need to think [7:38323]
Oh dear, that must have been catastrophic. Sorry, couldn't help myself (It's still Friday). Prof. Tom Lisa, CCAI Community College of Southern Nevada Cisco ATC/Regional Networking Academy "Hartnell, George" wrote: > I had a cat named Five once, > > but he had an unfortunate collision > > Yes.it is Friday. > > Best, G. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38498&t=38323 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Design Best Practices [7:38453]
Beating up layer 8 guys and girls with a burned down router over the had typically helps... Jeffrey Reed wrote: > > Im rather new to the Cisco world but have with other vendors. I need some > help with design Best Practices. Recently there was a post that told us > the max switch hop in a network should be about 7 hops. As a reseller, I am > working with a customer who has the following network design: > > Internet-3600-PIX-6500(r)-G-6500(s)-G-5500-5000-3500-1900-10M-3COMhub > > Unless indicated by a G or 10M, the link between devices is 100M. The > 6500(r) does all the routing, the 6500(s) is where about 7 5500s hang off > on Gig fiber. Each 5500 has about 3-4 5000s connected with 100M fiber. Each > 5000 has about 10-12 3500s which have about 8-12 1900s. Each of the 1900s > have about 4-8 3COM 10M hubs with students. Their teachers and admin staff > sit on 10m & 100M links in the 5500s & 5000s. The 6500(s) has about 200 > users via 100M. All the links support trunking until you hit a 1900. Ive > over-simplified for this example, but I think you get the idea. > > This network just sort of grew this way over the years. Older equipment is > pushed out to the edge as newer equipment is installed in the core. They > report a lot of random problems all blamed on the network. Their firmware is > pretty up to date and the hardware is reliable. > > While they are still using AppleTalk, a little IPX and mostly IP, I believe > their network is too complex with all the switch hops. I want to propose a > redesign that puts a user no more than three hops from the core 6500. This > may mean new single mode fiber in some locations and upgrades to hardware in > other locations. Im not looking for design help, Im looking for a smooth > way of telling the customer their design is the problem, not the hardware > itself. > > Any suggestions on how you have approached a customer or better yet, your > boss, on the need to have a proper design, even if it means additional > investment in fiber and effort to implement?? > > I appreciate the help from this group > > Jeff -- Sergei Gerasimtchouk SiteSmith, Inc. 888.898.7667 Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38497&t=38453 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Boson Practice Tests -- Cheating?? [7:28318]
Well, I just failed a CCIE test. And I did study Boson tests. The reason I failed it is because I do not have experience in ATM stuff. No cheating or reading would seem to replace real experience. So, I am back in the lab... :) Tim Toole wrote: > Hey Gang, > Why do people use the Boson practice tests when they > know that the questions are almost exactly like the > real Cisco test? Do people think that it is just a > coincidence that the questions are almost the exact > same as the real Cisco test? It's almost like > cheating. This would to me seem to devalue the Cisco > certifications if I could practically buy the same > test from Boson. > > Help me out here. I'm I off base on this one? > > TimT > > __ > Do You Yahoo!? > Send your FREE holiday greetings online! > http://greetings.yahoo.com -- Sergei Gerasimtchouk SiteSmith, Inc. 888.898.7667 Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38496&t=28318 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Latency in Telnet, intervlan routing [7:38187]
That was a reverse name lookup problem... fixed. Thanks... you guys are rocking ! ""Tauseef Nagi"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > In the Unix servers, please check for /etc/resolve.conf and see if name > servers are configured correctly. If these Unix servers don't require name > services, please add just their ip addresses to /etc/hosts file and then > check for response time. This is "reverse nam lookup" issue. > > Thanks. > > Tauseef > > ""Mason"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > I do Telnet from a client on VLAN1 and I reach the server just > > fine. VLAN1 is where the server is also connected to. > > I do Telnet from any other VLAN: Telnet takes a long time, then it times > > out. > > > > That tells me it is something in the InterVLAN routing. What would be the > > next step to troubleshoot the problem ? I look into the Cat 5000 > > configuration but I can't see any relevant changes that caused the > problem. > > If I use a Sniffer, I noticed a delta time larger for the Telnet. However, > I > > don't see any brodcast that could such delay. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38495&t=38187 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Packet loss on OSPF LAN [7:38397]
yeah, if the pings are bad then one can assume the game is bad. If the pings ever get to normal, game will be OK. Since the pings are bad right now, the game will have major lag in it and won't be fun to play because everyone else will kill you because your character "freezes" as the game tries to send the character's coordinates to the gaming server. If the gameserver dosne't receive the coordinates it thinks that charater isn't moving so other player sees character as jus standing there and they shoot you. A game is just a streamin app, but there is no jitter buffer because everything is in real time. -- RFC 1149 Compliant. ""Priscilla Oppenheimer"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > At 05:54 PM 3/15/02, Steven A. Ridder wrote: > >I don't think so. I assume if the pings are OK, then the games will be OK. > > He said the pings aren't OK. This doesn't mean the game isn't OK. > > >It's just if they packets stop coming in for a few seconds, his the game > >lags and slows everyone down because the game can't update the server his > >coordinates. > > > >-- > > > >RFC 1149 Compliant. > > > > > >""Priscilla Oppenheimer"" wrote in message > >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > So he needs to test by running the game, not by pinging. > > > > > > At 03:10 PM 3/15/02, Steven A. Ridder wrote: > > > >Games don't ping, but they need low latency, otherwise you get killed > >when > > > >there is tons of delay. I can attest to it first hand : ) > > > > > > > >-- > > > > > > > >RFC 1149 Compliant. > > > > > > > > > > > >""Priscilla Oppenheimer"" wrote in message > > > >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > > > Is something rate limiting ping replies? That's a common technique > for > > > > > avoiding hacker attacks. Do your gamers really need ping to work??? > > > > > > > > > > Priscilla > > > > > > > > > > At 02:32 PM 3/15/02, travis marlow wrote: > > > > > >If you will, I will walk down from the Internet. We are > load-sharing > >a > > > > > >connection to ATT and GBLX, each DS-3 terminates on it's own router > >that > > > > > >have HSRP between them. These "Internet" routers are connected to a > > > 6509 > > > > > >that also has two more routers connected that handle some T1's and > >some > > > > > >cable modem customers. Between these four routers there is iBGP and > > > OSPF > > > > > >running. If I'm a cable modem customer and I'm pinging out to the > >other > > > > > >side or this side of the Internet DS-3 then I will see until about > >ever > > > > > 60-62 seconds it will increase for one ping to 220ms and > > > > > >then drop three consecutive pings and then go right back to I'm > > > >completely > > > > > at a loss why I'm getting loss, the 6509 isn't even hardly > > > > > >tapped and the routers are doing fine on resources. Max ethernet > > > > > >utilization is about 20%. Has anybody ever had loss every minute or > >so? > > > > > >this does not affect regular browsing but the gamers on our network > >are > > > > > >throwing a fit. > > > > > > > > > > > > > > > Priscilla Oppenheimer > > > > > http://www.priscilla.com > > > > > > > > > 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=38494&t=38397 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Layer 3 switch ? [7:38358]
no, IRB is a technique integrating routing and bridging. but switching routers use hardware switching technique which based on layer 3 address not layer 2 address. this is one of the differences between router switches and switching routers. it's my point, pls correct it. - Original Message - From: "Chuck" To: Sent: Friday, March 15, 2002 11:24 AM Subject: Re: Layer 3 switch ? [7:38358] > so if I enable IRB on my 2501, I now have a layer 3 switch? ;-> > > > ""mlh"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > According to Clark's Cisco LAN Switching(page 452 ), > > layer 3 switching techniques can be grouped > > into two categories: > > Routing switches > > Switching routers > > > > mlh > > > > - Original Message - > > From: "Larry Letterman" > > To: > > Sent: Friday, March 15, 2002 2:48 AM > > Subject: RE: Layer 3 switch ? [7:38358] > > > > > > > A true router, 2621/3640/7200, is not usually considered > > > a L3 switch. A 6500 with an MSFC module installed can be > > > is a L3 switch and will perform L2/L3 routing and switching. > > > > > > A 6500 without the MSFC module is just a large high speed switch, > > > capable of only L2 switching. > > > > > > A layer 3 switch usually routes the first packet in the flow of data > > > and then switches the rest in the switching hardware. This is why L3 > > > routing/switching is quite a bit faster. A traditional router will use > > > IOS software to determine routes and the switch each packet between the > > > interfaces in the router. > > > > > > > > > Larry Letterman > > > Cisco Systems > > > [EMAIL PROTECTED] > > > > > > > > > -Original Message- > > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > > > John Green > > > Sent: Thursday, March 14, 2002 10:50 PM > > > To: [EMAIL PROTECTED] > > > Subject: Layer 3 switch ? [7:38358] > > > > > > > > > Is it ok to refer to a "router" as a Layer 3 switch ? > > > > > > cisco 6500 was referred to as a Layer 3 switch. > > > > > > question: does it(6500) have routing capabilities ? > > > - > > > > > > to connect to different vlans one needs a router. > > > right ?? (as shown below) > > > switchA ROUTER---switchB > > > > > > but say some nodes connected to switchB are on the > > > vlan of switchA. so now to connect switchA and switchB > > > can router be ok ? > > > -- > > > > > > __ > > > Do You Yahoo!? > > > Yahoo! Sports - live college hoops coverage > > > http://sports.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38493&t=38358 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
extended ping command of IOS [7:38492]
Look at the following result of extended ping command: Sending 2, [1500..2000] byte ICMP Echos to 172.16.113.17, timeout is 2 seconds: Packet has IP options: Total option bytes=39, padded length=40 Record route: 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 Reply to request 0 (28ms) (size 1500). Received packet has options Total option bytes=40, padded length=40 Record route: 172.16.192.5 172.16.113.16 172.16.113.17 172.16.113.17 172.16.192.6 172.16.192.6 172.16.192.5 0.0.0.0 0.0.0.0 0.0.0.0 End of list Unreachable from 172.16.192.0, maximum MTU 1478 (size 2000) Received packet has options Total option bytes= 39, padded length=40 Record route: 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 0.0.0.0 My question is: if the path's maximum MTU=1478, how reply to request 0 (size 1500) exists and how request goes through routers to the destination? Thank you. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38492&t=38492 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Cat/CAT: was RE: you American need to think [7:38323]
Isn't it time we all stopped playing with these pretty green boxes and started considering the liquid variety instead? I can't believe I'm still standing after 4 WAN catastrophes this week. But not for long I tell ya!! =) Slainte peoples! *hic* (provider bought us beers for lunch to make up for horrible week) Double-fisting-Chicago-lush-boy Rohm At 03:29 PM 3/15/2002 -0500, Gaz wrote: >Howard. What time do you start drinking on a Friday? :-) > >One day I'll have a job that allows me to start that early...One day! Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38491&t=38323 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Packet loss on OSPF LAN [7:38397]
At 05:54 PM 3/15/02, Steven A. Ridder wrote: >I don't think so. I assume if the pings are OK, then the games will be OK. He said the pings aren't OK. This doesn't mean the game isn't OK. >It's just if they packets stop coming in for a few seconds, his the game >lags and slows everyone down because the game can't update the server his >coordinates. > >-- > >RFC 1149 Compliant. > > >""Priscilla Oppenheimer"" wrote in message >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > So he needs to test by running the game, not by pinging. > > > > At 03:10 PM 3/15/02, Steven A. Ridder wrote: > > >Games don't ping, but they need low latency, otherwise you get killed >when > > >there is tons of delay. I can attest to it first hand : ) > > > > > >-- > > > > > >RFC 1149 Compliant. > > > > > > > > >""Priscilla Oppenheimer"" wrote in message > > >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > > Is something rate limiting ping replies? That's a common technique for > > > > avoiding hacker attacks. Do your gamers really need ping to work??? > > > > > > > > Priscilla > > > > > > > > At 02:32 PM 3/15/02, travis marlow wrote: > > > > >If you will, I will walk down from the Internet. We are load-sharing >a > > > > >connection to ATT and GBLX, each DS-3 terminates on it's own router >that > > > > >have HSRP between them. These "Internet" routers are connected to a > > 6509 > > > > >that also has two more routers connected that handle some T1's and >some > > > > >cable modem customers. Between these four routers there is iBGP and > > OSPF > > > > >running. If I'm a cable modem customer and I'm pinging out to the >other > > > > >side or this side of the Internet DS-3 then I will see until about >ever > > > > 60-62 seconds it will increase for one ping to 220ms and > > > > >then drop three consecutive pings and then go right back to I'm > > >completely > > > > at a loss why I'm getting loss, the 6509 isn't even hardly > > > > >tapped and the routers are doing fine on resources. Max ethernet > > > > >utilization is about 20%. Has anybody ever had loss every minute or >so? > > > > >this does not affect regular browsing but the gamers on our network >are > > > > >throwing a fit. > > > > > > > > > > > > Priscilla Oppenheimer > > > > http://www.priscilla.com > > > > > > 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=38490&t=38397 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Packet loss on OSPF LAN [7:38397]
I don't think so. I assume if the pings are OK, then the games will be OK. It's just if they packets stop coming in for a few seconds, his the game lags and slows everyone down because the game can't update the server his coordinates. -- RFC 1149 Compliant. ""Priscilla Oppenheimer"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > So he needs to test by running the game, not by pinging. > > At 03:10 PM 3/15/02, Steven A. Ridder wrote: > >Games don't ping, but they need low latency, otherwise you get killed when > >there is tons of delay. I can attest to it first hand : ) > > > >-- > > > >RFC 1149 Compliant. > > > > > >""Priscilla Oppenheimer"" wrote in message > >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > Is something rate limiting ping replies? That's a common technique for > > > avoiding hacker attacks. Do your gamers really need ping to work??? > > > > > > Priscilla > > > > > > At 02:32 PM 3/15/02, travis marlow wrote: > > > >If you will, I will walk down from the Internet. We are load-sharing a > > > >connection to ATT and GBLX, each DS-3 terminates on it's own router that > > > >have HSRP between them. These "Internet" routers are connected to a > 6509 > > > >that also has two more routers connected that handle some T1's and some > > > >cable modem customers. Between these four routers there is iBGP and > OSPF > > > >running. If I'm a cable modem customer and I'm pinging out to the other > > > >side or this side of the Internet DS-3 then I will see until about ever > > > 60-62 seconds it will increase for one ping to 220ms and > > > >then drop three consecutive pings and then go right back to I'm > >completely > > > at a loss why I'm getting loss, the 6509 isn't even hardly > > > >tapped and the routers are doing fine on resources. Max ethernet > > > >utilization is about 20%. Has anybody ever had loss every minute or so? > > > >this does not affect regular browsing but the gamers on our network are > > > >throwing a fit. > > > > > > > > > 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=38489&t=38397 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Route Redistribution [7:38488]
I am currently studying for the written exam. Does anyone have any suggestions on a summary sheet that explains route redistribution for the different protocols. Thanks in advance... Frank Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38488&t=38488 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Route Redistribution [7:38487]
I am currently studying for the written exam. Does anyone have any suggestions on a summary sheet that explains route redistribution for the different protocols. Thanks in advance... Frank Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38487&t=38487 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Embryonic connections [7:38451]
An embryonic connection is a connection that was started but never completed. A syn attack will produce embryonic connections so hey it may not be the telcos fault:) dave Steve Smith wrote: > > Can anyone explain the term embryonic connections? I have a box that has > increasing dropped embryonic connections which if I knew exactly what > the term meant maybe I could help this Telco figure out what is wrong > with their box that they say has no problems must be my router thing > going on. > > Thanks! > > Steve Smith MCSE, CCNA, CCDA > Data Networks Technical Manager > Freeliant Inc. > [EMAIL PROTECTED] > > The brave may not live forever, but the cautious never live. -- 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=38486&t=38451 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Packet loss on OSPF LAN [7:38397]
So he needs to test by running the game, not by pinging. At 03:10 PM 3/15/02, Steven A. Ridder wrote: >Games don't ping, but they need low latency, otherwise you get killed when >there is tons of delay. I can attest to it first hand : ) > >-- > >RFC 1149 Compliant. > > >""Priscilla Oppenheimer"" wrote in message >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Is something rate limiting ping replies? That's a common technique for > > avoiding hacker attacks. Do your gamers really need ping to work??? > > > > Priscilla > > > > At 02:32 PM 3/15/02, travis marlow wrote: > > >If you will, I will walk down from the Internet. We are load-sharing a > > >connection to ATT and GBLX, each DS-3 terminates on it's own router that > > >have HSRP between them. These "Internet" routers are connected to a 6509 > > >that also has two more routers connected that handle some T1's and some > > >cable modem customers. Between these four routers there is iBGP and OSPF > > >running. If I'm a cable modem customer and I'm pinging out to the other > > >side or this side of the Internet DS-3 then I will see until about ever > > 60-62 seconds it will increase for one ping to 220ms and > > >then drop three consecutive pings and then go right back to I'm >completely > > at a loss why I'm getting loss, the 6509 isn't even hardly > > >tapped and the routers are doing fine on resources. Max ethernet > > >utilization is about 20%. Has anybody ever had loss every minute or so? > > >this does not affect regular browsing but the gamers on our network are > > >throwing a fit. > > > > > > 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=38485&t=38397 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
CCNP Foundations Exam [7:38484]
I recently completed my first step and got my CCNA.I've got quite a bit of experience, but had never ventured down the Cisco certification track before. I'm curious if there are any opinions about taking the combined Foundations exam or taking the individual exams for routing, switching and remote access. The obvious advantages of less time and less money are appealing, but I'm concerned that the large amount of information and topics could be overwhelming. Anyone that has taken the Foundations wished they would've taken the exams one at a time? Or, anyone that took the three individually, think that the combined test would've been the better approach? My ultimate goal is not as a CCIE, but a CSS1. Any opinions would be appreciated. Regards, Larry Youngquist CISSP, CCNA, MCSE Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38484&t=38484 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: TACACS+ Server [7:38324]
Padding here, padding there, padding everywhere. www.cisco.com buddy. Ever used it? Sarcasm aside, this is a topic that you could have researched yourself with a 5 second search on Cisco or Google. I found these through google actually: TACACS+ Support Page (watch the wrap): http://www.cisco.com/pcgi-bin/Support/PSP/psp_view.pl?p=Internetworking:Taca cs_plus TACACS+ Technical Tips: http://www.cisco.com/warp/public/707/index.shtml#tacacs+ CiscoSecure ACS v2.3 for Solaris: http://www.cisco.com/univercd/cc/td/doc/pcat/sqasux.htm A funny note, check out that HTML page name in that last link... "SQA SUX" or just a coincidence? I work in QA, so maybe I'm just seeing things.. :) - Sean -Original Message- From: Ray Smith [mailto:[EMAIL PROTECTED]] Sent: Friday, March 15, 2002 11:25 AM To: [EMAIL PROTECTED] Subject: Re: TACACS+ Server [7:38324] Solaris buddy. Do you know how to build one? >From: Brian >To: Ray Smith >CC: [EMAIL PROTECTED] >Subject: Re: TACACS+ Server [7:38324] >Date: Thu, 14 Mar 2002 16:52:17 -0800 (PST) > >I suspect that depends slightly on the od u want to use? >BSD, Linux, and Solaris will all run on that, which r u planning to use? > > Bri > >On Thu, 14 Mar 2002, Ray Smith wrote: > > > Does anyone know how to build/setup a TACACS+ Server on a Sparc-5? > > > > Ray > > > > > > _ > > Chat with friends online, try MSN Messenger: http://messenger.msn.com _ Send and receive Hotmail on your mobile device: http://mobile.msn.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38483&t=38324 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: CCNP Claire Gough [7:34963]
It is an OK book. She knows her stuff very well, but her book alone is not all that you will need to pass Routing. I would suggest using her book along with TCP/IP Volume I and II. The big TCP/IP books will get into a lot more detail on the topics covered in 640-503. The second volume of TCP/IP covers BGP4 with about 150 pages where Claire only has about 25 or so on BGP4. Sure, you won't need all 150 pages of BGP to pass the test, but it wouldn't hurt to know it. I used her book as a guide only -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Foltzer, Gene Sent: Friday, March 15, 2002 3:21 PM To: [EMAIL PROTECTED] Subject: RE: CCNP Claire Gough [7:34963] I haven't read the book, but I did have Claire as my very first instructor in a Cisco classroom taught course. Back then it was ICRC. She was a fantastic teacher. The way she put things were so unique and unusual that it was difficult to forget what she taught. Like her parable explaining SNA all routes explorers as the same as sending a bunch of boy scouts off on a scouting mission. Its too long to type here, but I'll never forget how SNA routing works. If you ever run into her, ask her about it. Gene -Original Message- From: Tel Khan [mailto:[EMAIL PROTECTED]] Sent: Saturday, February 09, 2002 10:00 AM To: [EMAIL PROTECTED] Subject: CCNP Claire Gough [7:34963] I need some advice people, is it worth me purchasing the Cisco press CCNP routing by Claire Gough? is this book the latests book. Thanks in advance Tel Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38480&t=34963 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Cat/CAT: was RE: you American need to think [7:38323]
I had a cat named Five once, but he had an unfortunate collision Yes.it is Friday. Best, G. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38482&t=38323 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
can somone explain "Asynchronous Host Mobility " [7:38481]
you enable it on the traget with router_a(config)#ip tcp async-mobility server then activate it from another router: router_b#tunnel router_a it acts just like a telnet session, only slower, and over port 57 what is this for? i am guessing that this is legacy or simply not used much due to the lack of helpfull documentation related to it on cco.. the link is: http://www.cisco.com/univercd/cc/td/doc/product/software/ios121/121cgcr/dialts_c/dtsprt4/dcdasppp.htm __ Do You Yahoo!? Yahoo! Sports - live college hoops coverage http://sports.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38481&t=38481 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: TACACS+ Server [7:38324]
a copmputer? I think most of the list has put together a machine or two.
>>> "Ray Smith" 03/15/02 02:25PM >>>
Solaris buddy. Do you know how to build one?
>From: Brian
>To: Ray Smith
>CC: [EMAIL PROTECTED]
>Subject: Re: TACACS+ Server [7:38324]
>Date: Thu, 14 Mar 2002 16:52:17 -0800 (PST)
>
>I suspect that depends slightly on the od u want to use?
>BSD, Linux, and Solaris will all run on that, which r u planning to use?
>
> Bri
>
>On Thu, 14 Mar 2002, Ray Smith wrote:
>
> > Does anyone know how to build/setup a TACACS+ Server on a Sparc-5?
> >
> > Ray
> >
> >
> > _
> > Chat with friends online, try MSN Messenger: http://messenger.msn.com
_
Send and receive Hotmail on your mobile device: http://mobile.msn.com
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Re: pirority group damn it [7:38084]
Priscilla Oppenheimer wrote: > > > I think Cisco recommends not using fancy queuing unless you are already > experiencing congestion. Your best solution to avoid the slowness you > mentioned may be to remove the priority queuing statements. > Absolutley, remember features kill, just because there is a knob doesn't mean you should turn it!!! Dave -- 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=38478&t=38084 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: CCNP Claire Gough [7:34963]
I haven't read the book, but I did have Claire as my very first instructor in a Cisco classroom taught course. Back then it was ICRC. She was a fantastic teacher. The way she put things were so unique and unusual that it was difficult to forget what she taught. Like her parable explaining SNA all routes explorers as the same as sending a bunch of boy scouts off on a scouting mission. Its too long to type here, but I'll never forget how SNA routing works. If you ever run into her, ask her about it. Gene -Original Message- From: Tel Khan [mailto:[EMAIL PROTECTED]] Sent: Saturday, February 09, 2002 10:00 AM To: [EMAIL PROTECTED] Subject: CCNP Claire Gough [7:34963] I need some advice people, is it worth me purchasing the Cisco press CCNP routing by Claire Gough? is this book the latests book. Thanks in advance Tel Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38459&t=34963 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Cat/CAT: was RE: you American need to think [7:38323]
>Howard. What time do you start drinking on a Friday? :-) > >One day I'll have a job that allows me to start that early...One day! I ought to be drinking something. I'm off to the IETF in Minneapolis on Saturday night, and, last heard, there was already 14 inches of snow and more falling. Luckily, there are walkways between the meeting hotel and where I'm staying. My feline assistant, unfortunately, will not be with me. But this cat is telecommunications-literate. He is the only cat I know that made obscene telephone calls. > > > > >""Howard C. Berkowitz"" wrote in message >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... >> >Here's my advice: The next time you feel the need to express your >opinions, >> >buy a dog. I'm sure it will be happy to listen to whatever topics you >wish >> >to expound on. (or a cat, hamster, whooping crane, or whatever pet seems >> >best for you) Perhaps you can even get them an email and send them >messages >> >if you can't restrain your idle hands. >> >> >> While my cat, Clifford, is indeed a good listener, he has no useful >> opinions on Cat switches. He does understand controlling tail >> circuits. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38477&t=38323 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: about routing protocols [7:38393]
At 1:47 PM -0500 3/15/02, John Green wrote: >C and D (info about links and routes) is always true >for all routing protocols because that is what is >routing is all about. > >A (periodic updates): RIP does that for sure. not sure >for ospf and bgp. >B: hello mechanism... not sure if all do, but i guess >it is true as well (guess though) One fairly general rule is that hellos and periodic updates are mutually exclusive. In the early distance vector protocols, RIP and IGRP, the lack of updates was used to detect link and distant router failures. The advent of hello protocols made it practical to send updates only, since as long as you were receiving hellos, you could assume nothing had changed. There are some special cases, such as periodic reflooding in OSPF as a reality check. In operation, many ISPs disable BGP keepalive and rely on an IGP and/or lower layers to detect failures. BGP keepalive is generally too slow to be useful. So: RIP: Periodic update (30 sec), no hello IGRP: Periodic update (90 sec), no hello OSPF: Updates only (30 minute reflood), hello EIGRP:Updates only, hello ISIS: Updates only, hello BGP: Really not comparable > > >--- mlh wrote: >> Hi, there, >> >> The following question has been given a reference >> answer : ABCD >> But I am not sure: All routing protocols update >> periodically? >> All of them send hello message? what is the >> difference between >> information about links and routes? >> >> What are some characteristics of routing protocols? >> >> A - Send periodic updates. >> B - Have a separate hello mechanism. >> C - Exchange information about links. >> D - Exchange information about routes. >> E - No answer is correct >[EMAIL PROTECTED] > > >__ >Do You Yahoo!? >Yahoo! Sports - live college hoops coverage >http://sports.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38463&t=38393 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: OT/ Pass one Lab and hold two CCIE certs ? [7:38402]
At 11:10 AM 3/15/02, Dennis Laganiere wrote: >That's cute, but I think I'll wait for ccie #12648430 I could use some more of that (C0FFEE). That's a Zero in there, not an OH. ;-) Priscilla >--- Dennis > >-Original Message- >From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]] >Sent: Friday, March 15, 2002 10:35 AM >To: [EMAIL PROTECTED] >Subject: Re: OT/ Pass one Lab and hold two CCIE certs ? [7:38402] > > >I get it! ;-) > >Priscilla >CNX 01CCDD > >At 11:49 AM 3/15/02, Phil Barker wrote: > >What about the one who passes out as CCIE #52254 ? > > > >Phil. > > --- John Neiberger > >wrote: > Change your last name to Ccie? :-) > > > > > > Or, include both the written and lab exam, e.g. John > > > Neiberger, CCIE > > > Written, CCIE R&S #12005. > > > > > > Nah, because only one of those is a cert. I give > > > up, what's the trick? > > > > > > > > > John > > > > > > >>> "Phil Barker" > > > 3/15/02 8:44:23 AM >>> > > > How can you get CCIE after your name twice by only > > > passing 1 CCIE Lab exam ? > > > > > > > > > PS : Lateral thinking may be required > > > > > > > > > Phil. > > > > > > __ > > > Do You Yahoo!? > > > Everything you'll ever need on one web page > > > from News and Sport to Email and Music Charts > > > http://uk.my.yahoo.com > >[EMAIL PROTECTED] > > > >__ > >Do You Yahoo!? > >Everything you'll ever need on one web page > >from News and Sport to Email and Music Charts > >http://uk.my.yahoo.com > > >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=38458&t=38402 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: OT/ Pass one Lab and hold two CCIE certs ? [7:38402]
Simple, convert decimal 52254 to Hex. HTH, Prof. Tom Lisa, CCAI Community College of Southern Nevada Cisco ATC/Regional Networking Academy "Steven A. Ridder" wrote: > I'm slow guys and gals, what with all these numbers after the CCIE? What > CCIE #52254 summposed to mean? > > -- > > RFC 1149 Compliant. > > ""Dennis Laganiere"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > That's cute, but I think I'll wait for ccie #12648430 > > > > --- Dennis > > > > -Original Message- > > From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]] > > Sent: Friday, March 15, 2002 10:35 AM > > To: [EMAIL PROTECTED] > > Subject: Re: OT/ Pass one Lab and hold two CCIE certs ? [7:38402] > > > > > > I get it! ;-) > > > > Priscilla > > CNX 01CCDD > > > > At 11:49 AM 3/15/02, Phil Barker wrote: > > >What about the one who passes out as CCIE #52254 ? > > > > > >Phil. > > > --- John Neiberger > > >wrote: > Change your last name to Ccie? :-) > > > > > > > > Or, include both the written and lab exam, e.g. John > > > > Neiberger, CCIE > > > > Written, CCIE R&S #12005. > > > > > > > > Nah, because only one of those is a cert. I give > > > > up, what's the trick? > > > > > > > > > > > > John > > > > > > > > >>> "Phil Barker" > > > > 3/15/02 8:44:23 AM >>> > > > > How can you get CCIE after your name twice by only > > > > passing 1 CCIE Lab exam ? > > > > > > > > > > > > PS : Lateral thinking may be required > > > > > > > > > > > > Phil. > > > > > > > > __ > > > > Do You Yahoo!? > > > > Everything you'll ever need on one web page > > > > from News and Sport to Email and Music Charts > > > > http://uk.my.yahoo.com > > >[EMAIL PROTECTED] > > > > > >__ > > >Do You Yahoo!? > > >Everything you'll ever need on one web page > > >from News and Sport to Email and Music Charts > > >http://uk.my.yahoo.com > > > > > > Priscilla Oppenheimer > > http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38475&t=38402 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Embryonic connections [7:38451]
Steve, An embryonic connection is a half-open connection. Take TCP, for example. With TCP, it goes through a three-way handshake (3 exchanges): SYN, SYN/ACK, ACK. An example of an embryonic connection for TCP would be to see a SYN without the other two parts of a handshake. This is a very popular form of a Denial of Service (DoS) attack where a hacker floods a service with TCP SYNs. Many firewall solutions, including the PIX and the IOS Firewall feature set have mechanisms to deal with this kind of attack. Hope this helps. Cheers! -- Richard Deal * Author of the ebook "CCNA Secrets Revealed!" and Exam Cram and Exam Prep books from the Coriolis Group * Test author for QuizWare (www.quizware.com) ""Steve Smith"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Can anyone explain the term embryonic connections? I have a box that has > increasing dropped embryonic connections which if I knew exactly what > the term meant maybe I could help this Telco figure out what is wrong > with their box that they say has no problems must be my router thing > going on. > > Thanks! > > Steve Smith MCSE, CCNA, CCDA > Data Networks Technical Manager > Freeliant Inc. > [EMAIL PROTECTED] > > The brave may not live forever, but the cautious never live. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38474&t=38451 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: you American need to think [7:38323]
Well then I guess I am #3! But this is ridiculous. And cisco/routing has NOTHING to do with political views!!Mike has made some good points here, but the overriding one is that it is inappropriate to bring up this crap in a forum like this! That is my main point! Moderator? Marc Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38473&t=38323 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
3640 Aanlog module with MAC client. [7:38472]
Folks, I have 3640 with 8-port analog module. All ports are occupied. I have Cisco Secure ACS 3.0 doing the Radius authentication which is integrated with the existing NT domain. In the NT domain, I have a few MAC servers and NT servers running appletalk and services for appletalk network. The MAC clients on the LAN are fine accessing all the resources on the network without any problems. However, the mac clients dialing into the 3640 with ARAP, the radius authentication is fine and all IP function is fine, but no appletalk at all. All dialin clients(PC or MAC) receive the IP info from the DHCP server on the LAN and work fine. I must be missing something here. What is it? Thanks in advance Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38472&t=38472 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: OSPF Database Filter [7:38431]
I did an "ip ospf databas all out" and a neighborship still formed. He also learned all the routes from the neighbor. The neighbor on the other-hand, didn't learn any routes. So I guess it's passive-interface for OSPF. just to be sure, I did a passive interface (after I took off the lsa database filter) and I lost my neighbor and never learned of him until I removed the passive interface. -- RFC 1149 Compliant. ""David Zhou"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > My understanding is: > 1. With passive-interface, we will not see hello packet and will not see > neighbor relation form. > 2. With "ip ospf database-filter all out", you should be able to see hello > packets. And should be able to see ospf 'two-way'neighbor relation, but no > 'full' neighbor relation, due to no able to change LSA packets. But just > don't know what this used for? > This is what I guess, need to verify. > Welcome any comment. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38471&t=38431 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Cat/CAT: was RE: you American need to think [7:38323]
Howard. What time do you start drinking on a Friday? :-) One day I'll have a job that allows me to start that early...One day! ""Howard C. Berkowitz"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > >Here's my advice: The next time you feel the need to express your opinions, > >buy a dog. I'm sure it will be happy to listen to whatever topics you wish > >to expound on. (or a cat, hamster, whooping crane, or whatever pet seems > >best for you) Perhaps you can even get them an email and send them messages > >if you can't restrain your idle hands. > > > While my cat, Clifford, is indeed a good listener, he has no useful > opinions on Cat switches. He does understand controlling tail > circuits. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38470&t=38323 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Embryonic connections [7:38451]
I think it refers to half open TCP connections. For example, you may have a whole bunch of SYN requests that your box has ACKed, but has not received a SYN ACK from. Alex Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38461&t=38451 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: OT/ Pass one Lab and hold two CCIE certs ? [7:38402]
CCIE = Hexadecimal CC1E = Decimal 52254. Took me a while too. :-) -Original Message- From: Steven A. Ridder [mailto:[EMAIL PROTECTED]] Sent: Friday, March 15, 2002 2:28 PM To: [EMAIL PROTECTED] Subject: Re: OT/ Pass one Lab and hold two CCIE certs ? [7:38402] I'm slow guys and gals, what with all these numbers after the CCIE? What CCIE #52254 summposed to mean? -- RFC 1149 Compliant. ""Dennis Laganiere"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > That's cute, but I think I'll wait for ccie #12648430 > > --- Dennis > > -Original Message- > From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]] > Sent: Friday, March 15, 2002 10:35 AM > To: [EMAIL PROTECTED] > Subject: Re: OT/ Pass one Lab and hold two CCIE certs ? [7:38402] > > > I get it! ;-) > > Priscilla > CNX 01CCDD > > At 11:49 AM 3/15/02, Phil Barker wrote: > >What about the one who passes out as CCIE #52254 ? > > > >Phil. > > --- John Neiberger > >wrote: > Change your last name to Ccie? :-) > > > > > > Or, include both the written and lab exam, e.g. John > > > Neiberger, CCIE > > > Written, CCIE R&S #12005. > > > > > > Nah, because only one of those is a cert. I give > > > up, what's the trick? > > > > > > > > > John > > > > > > >>> "Phil Barker" > > > 3/15/02 8:44:23 AM >>> > > > How can you get CCIE after your name twice by only > > > passing 1 CCIE Lab exam ? > > > > > > > > > PS : Lateral thinking may be required > > > > > > > > > Phil. > > > > > > __ > > > Do You Yahoo!? > > > Everything you'll ever need on one web page > > > from News and Sport to Email and Music Charts > > > http://uk.my.yahoo.com > >[EMAIL PROTECTED] > > > >__ > >Do You Yahoo!? > >Everything you'll ever need on one web page > >from News and Sport to Email and Music Charts > >http://uk.my.yahoo.com > > > Priscilla Oppenheimer > http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38469&t=38402 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: OSPF Database Filter [7:38431]
My understanding is: 1. With passive-interface, we will not see hello packet and will not see neighbor relation form. 2. With "ip ospf database-filter all out", you should be able to see hello packets. And should be able to see ospf 'two-way'neighbor relation, but no 'full' neighbor relation, due to no able to change LSA packets. But just don't know what this used for? This is what I guess, need to verify. Welcome any comment. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38468&t=38431 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: OSPF Database Filter [7:38431]
I'm tempted to go find two spare routers and set this up to test it. I was under the impression that passive-interface stopped all routing protocol traffic with OSPF, including hellos. What's the point in sending hellos if the interface is passive? Interesting...I think I'll go scrounge up a couple of routers. :-) If I'm able to do this at work I'll let you know how it turns out. John >>> Tshon 3/15/02 1:16:51 PM >>> I have no way of testing this, but the understanding that I have is that, Passive-interface stops the processing of routing updatesbut doesn't stop Hello's from being advertised out that interface Yet the database-filter will not allow neighborships from being formed So you might have the passive-interface but hello's are still being sent out that interface, If someone could check this with a passive-interface turn on ospf debug John Neiberger wrote: >There are two related commands that prevent flooding of OSPF LSAs: > >ospf database-filter all out >neighbor a.b.c.d database-filter all out > >I'm curious about how precise they're being with the word 'flooding'. >Will this command stop *all* LSAs or does it simply filter out the >periodic flooding of LSAs roughly every 30 minutes? > >Again, I don't have a way to test this at work at the moment and I >can't find a better explanation on CCO, at least so far. > >It seems to me that if it stops all LSAs, there's not too much >difference between that and the passive-interface command. The command >references specifically use the word 'flooding' so at this point I'm >thinking they are only referring to the periodic flooding of LSAs and >not the other types of LSA exchanges. > >Regards, >John Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38467&t=38431 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Packet loss on OSPF LAN [7:38397]
Games don't ping, but they need low latency, otherwise you get killed when there is tons of delay. I can attest to it first hand : ) -- RFC 1149 Compliant. ""Priscilla Oppenheimer"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Is something rate limiting ping replies? That's a common technique for > avoiding hacker attacks. Do your gamers really need ping to work??? > > Priscilla > > At 02:32 PM 3/15/02, travis marlow wrote: > >If you will, I will walk down from the Internet. We are load-sharing a > >connection to ATT and GBLX, each DS-3 terminates on it's own router that > >have HSRP between them. These "Internet" routers are connected to a 6509 > >that also has two more routers connected that handle some T1's and some > >cable modem customers. Between these four routers there is iBGP and OSPF > >running. If I'm a cable modem customer and I'm pinging out to the other > >side or this side of the Internet DS-3 then I will see until about ever > 60-62 seconds it will increase for one ping to 220ms and > >then drop three consecutive pings and then go right back to I'm completely > at a loss why I'm getting loss, the 6509 isn't even hardly > >tapped and the routers are doing fine on resources. Max ethernet > >utilization is about 20%. Has anybody ever had loss every minute or so? > >this does not affect regular browsing but the gamers on our network are > >throwing a fit. > > > Priscilla Oppenheimer > http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38466&t=38397 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: OT/ Pass one Lab and hold two CCIE certs ? [7:38402]
Once the cert becomes truly watered down and CCIE numbers are issued along with birth certificates, number 67,677,369 could get away with this in any ascii aware environment such as a packet sniffer "hex" pane (that would take two translations, of course). Was the original poster referring to the lab shared amongst all of the CCIE C&S tracks? (I suppose If someone passed the lab and two of the qualifying exams, such as optical & wireless, that the temptation would be to refer to themselves as an "optical C&S CCIE" AND a "wireless C&S CCIE.") I'm not sure what Cisco's take is on using anything but C&S CCIE. - Original Message - From: "Priscilla Oppenheimer" To: Sent: Friday, March 15, 2002 1:35 PM Subject: Re: OT/ Pass one Lab and hold two CCIE certs ? [7:38402] > I get it! ;-) > > Priscilla > CNX 01CCDD > > At 11:49 AM 3/15/02, Phil Barker wrote: > >What about the one who passes out as CCIE #52254 ? > > > >Phil. > > --- John Neiberger > >wrote: > Change your last name to Ccie? :-) > > > > > > Or, include both the written and lab exam, e.g. John > > > Neiberger, CCIE > > > Written, CCIE R&S #12005. > > > > > > Nah, because only one of those is a cert. I give > > > up, what's the trick? > > > > > > > > > John > > > > > > >>> "Phil Barker" > > > 3/15/02 8:44:23 AM >>> > > > How can you get CCIE after your name twice by only > > > passing 1 CCIE Lab exam ? > > > > > > > > > PS : Lateral thinking may be required > > > > > > > > > Phil. > > > > > > __ > > > Do You Yahoo!? > > > Everything you'll ever need on one web page > > > from News and Sport to Email and Music Charts > > > http://uk.my.yahoo.com > >[EMAIL PROTECTED] > > > >__ > >Do You Yahoo!? > >Everything you'll ever need on one web page > >from News and Sport to Email and Music Charts > >http://uk.my.yahoo.com > > > Priscilla Oppenheimer > http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38465&t=38402 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: OSPF Database Filter [7:38431]
I have no way of testing this, but the understanding that I have is that, Passive-interface stops the processing of routing updatesbut doesn't stop Hello's from being advertised out that interface Yet the database-filter will not allow neighborships from being formed So you might have the passive-interface but hello's are still being sent out that interface, If someone could check this with a passive-interface turn on ospf debug John Neiberger wrote: >There are two related commands that prevent flooding of OSPF LSAs: > >ospf database-filter all out >neighbor a.b.c.d database-filter all out > >I'm curious about how precise they're being with the word 'flooding'. >Will this command stop *all* LSAs or does it simply filter out the >periodic flooding of LSAs roughly every 30 minutes? > >Again, I don't have a way to test this at work at the moment and I >can't find a better explanation on CCO, at least so far. > >It seems to me that if it stops all LSAs, there's not too much >difference between that and the passive-interface command. The command >references specifically use the word 'flooding' so at this point I'm >thinking they are only referring to the periodic flooding of LSAs and >not the other types of LSA exchanges. > >Regards, >John Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38464&t=38431 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Packet loss on OSPF LAN [7:38397]
Is something rate limiting ping replies? That's a common technique for avoiding hacker attacks. Do your gamers really need ping to work??? Priscilla At 02:32 PM 3/15/02, travis marlow wrote: >If you will, I will walk down from the Internet. We are load-sharing a >connection to ATT and GBLX, each DS-3 terminates on it's own router that >have HSRP between them. These "Internet" routers are connected to a 6509 >that also has two more routers connected that handle some T1's and some >cable modem customers. Between these four routers there is iBGP and OSPF >running. If I'm a cable modem customer and I'm pinging out to the other >side or this side of the Internet DS-3 then I will see until about ever 60-62 seconds it will increase for one ping to 220ms and >then drop three consecutive pings and then go right back to I'm completely at a loss why I'm getting loss, the 6509 isn't even hardly >tapped and the routers are doing fine on resources. Max ethernet >utilization is about 20%. Has anybody ever had loss every minute or so? >this does not affect regular browsing but the gamers on our network are >throwing a fit. Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38462&t=38397 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Design Best Practices [7:38453]
Another cool network! I'm jealous. : ) If they hired you as the expert and they realize that the network is to blame, you don't really need to beat the correct solution over thier head. They should be looking to you for the best possible solution. I just hope layer 8 dosen't get in the way (or a know-it-all in-house admin). As for the max switch hop, STP may be 7, but that's too much. You should try to stick to the basic model Cisco has been pushing for years - 3. Access, Distro, Core, which you seem to recognize. If they balk at your suggestions, you can show them a baisc chart from a CCDA book. I'm sure you can explain that the less distance/hops a packet has to travel and the less paths it has to take, the better. Between that and a sniffer, it should be another fun job. -- RFC 1149 Compliant. ""Jeffrey Reed"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Im rather new to the Cisco world but have with other vendors. I need some > help with design Best Practices. Recently there was a post that told us > the max switch hop in a network should be about 7 hops. As a reseller, I am > working with a customer who has the following network design: > > Internet-3600-PIX-6500(r)-G-6500(s)-G-5500-5000-3500-1900-10M-3COMhub > > Unless indicated by a G or 10M, the link between devices is 100M. The > 6500(r) does all the routing, the 6500(s) is where about 7 5500s hang off > on Gig fiber. Each 5500 has about 3-4 5000s connected with 100M fiber. Each > 5000 has about 10-12 3500s which have about 8-12 1900s. Each of the 1900s > have about 4-8 3COM 10M hubs with students. Their teachers and admin staff > sit on 10m & 100M links in the 5500s & 5000s. The 6500(s) has about 200 > users via 100M. All the links support trunking until you hit a 1900. Ive > over-simplified for this example, but I think you get the idea. > > This network just sort of grew this way over the years. Older equipment is > pushed out to the edge as newer equipment is installed in the core. They > report a lot of random problems all blamed on the network. Their firmware is > pretty up to date and the hardware is reliable. > > While they are still using AppleTalk, a little IPX and mostly IP, I believe > their network is too complex with all the switch hops. I want to propose a > redesign that puts a user no more than three hops from the core 6500. This > may mean new single mode fiber in some locations and upgrades to hardware in > other locations. Im not looking for design help, Im looking for a smooth > way of telling the customer their design is the problem, not the hardware > itself. > > Any suggestions on how you have approached a customer or better yet, your > boss, on the need to have a proper design, even if it means additional > investment in fiber and effort to implement?? > > I appreciate the help from this group > > Jeff Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38460&t=38453 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: about routing protocols [7:38393]
Are you sure the question didn't say, "What are some characteristics of ALL routing protocols?" Then the answer is E because routing protocols behave differently and no answer applies to ALL of them. Some routing protocols don't send periodic updates. For example, EIGRP doesn't. Many routing protocols don't have a separate hello mechanisms, including RIP and IGRP. I think C and D were a feeble attempt to distinguish link-state and distance-vector maybe. However, one could certainly argue that both exchange information about links and routes. But I bet that's not what the test writer had in mind. Regardless, it's a bad question, lacking in logic and technical accuracy, in my opinion. Priscilla >--- mlh wrote: > > Hi, there, > > > > The following question has been given a reference > > answer : ABCD > > But I am not sure: All routing protocols update > > periodically? > > All of them send hello message? what is the > > difference between > > information about links and routes? > > > > What are some characteristics of routing protocols? > > > > A - Send periodic updates. > > B - Have a separate hello mechanism. > > C - Exchange information about links. > > D - Exchange information about routes. > > E - No answer is correct >[EMAIL PROTECTED] > > >__ >Do You Yahoo!? >Yahoo! Sports - live college hoops coverage >http://sports.yahoo.com/ Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38457&t=38393 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Embryonic connections [7:38451]
The telco. denying responsibility for something--the hell you say! Never heard of it before. ""Steve Smith"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Can anyone explain the term embryonic connections? I have a box that has > increasing dropped embryonic connections which if I knew exactly what > the term meant maybe I could help this Telco figure out what is wrong > with their box that they say has no problems must be my router thing > going on. > > Thanks! > > Steve Smith MCSE, CCNA, CCDA > Data Networks Technical Manager > Freeliant Inc. > [EMAIL PROTECTED] > > The brave may not live forever, but the cautious never live. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38456&t=38451 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: OT/ Pass one Lab and hold two CCIE certs ? [7:38402]
whats the max no now.. rams CCIE #9. -Original Message- From: Dennis Laganiere [mailto:[EMAIL PROTECTED]] Sent: Saturday, March 16, 2002 12:38 AM To: [EMAIL PROTECTED] Subject: RE: OT/ Pass one Lab and hold two CCIE certs ? [7:38402] That's cute, but I think I'll wait for ccie #12648430 --- Dennis -Original Message- From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]] Sent: Friday, March 15, 2002 10:35 AM To: [EMAIL PROTECTED] Subject: Re: OT/ Pass one Lab and hold two CCIE certs ? [7:38402] I get it! ;-) Priscilla CNX 01CCDD At 11:49 AM 3/15/02, Phil Barker wrote: >What about the one who passes out as CCIE #52254 ? > >Phil. > --- John Neiberger >wrote: > Change your last name to Ccie? :-) > > > > Or, include both the written and lab exam, e.g. John > > Neiberger, CCIE > > Written, CCIE R&S #12005. > > > > Nah, because only one of those is a cert. I give > > up, what's the trick? > > > > > > John > > > > >>> "Phil Barker" > > 3/15/02 8:44:23 AM >>> > > How can you get CCIE after your name twice by only > > passing 1 CCIE Lab exam ? > > > > > > PS : Lateral thinking may be required > > > > > > Phil. > > > > __ > > Do You Yahoo!? > > Everything you'll ever need on one web page > > from News and Sport to Email and Music Charts > > http://uk.my.yahoo.com >[EMAIL PROTECTED] > >__ >Do You Yahoo!? >Everything you'll ever need on one web page >from News and Sport to Email and Music Charts >http://uk.my.yahoo.com Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38455&t=38402 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Firmware Releases: Cisco Compared to Microsoft [7:38454]
Me again new to the Cisco world. The last vendor I worked with will rename nameless for now, but they had a lot of firmware releases and it would drive us nuts with all the fixes and patches. Worse were the few times they would release a new level of firmware and break something that was working before the upgrade. They reminded me a lot of Microsoft. With all the patches and fixes, its a full time job keeping up with the required patch levels and investigating release notes to make sure nothing else is going to break. Am I going to experience similar problems in the Cisco world? I have customers who are utilizing some advanced features, but not many are bleeding-edge. Those of you who have been using Cisco products for quite some time, whats your process on firmware upgrades?? When do you decide to upgrade and when do you decide to wait for the next release. If I want to run basic things like 802.1Q, prioritized output queues, channeling etc, am I safe running on one version of code for a year or two? I know this is a loaded question, but Im curious what we should expect in larger networks. Should a customer expect all roses with Cisco as compared to the thorns of Microsoft?? Thanks again!! Jeff Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38454&t=38454 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Packet loss on OSPF LAN [7:38397]
You have a cool set up there. I wish I designed it. : ) I can't think of anything that has a 60s activity timer except for BGP, but unless you had a bizillion neighbors and they all hello'd at same time, that's not your problem. Honestly, I'd get a sniffer in there to see what's up. Also, I havent heard of any MS worms flooding the internet today (there is one in Japan, but it won't affect you). -- RFC 1149 Compliant. ""travis marlow"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > If you will, I will walk down from the Internet. We are load-sharing a > connection to ATT and GBLX, each DS-3 terminates on it's own router that > have HSRP between them. These "Internet" routers are connected to a 6509 > that also has two more routers connected that handle some T1's and some > cable modem customers. Between these four routers there is iBGP and OSPF > running. If I'm a cable modem customer and I'm pinging out to the other > side or this side of the Internet DS-3 then I will see until about ever 60-62 seconds it will increase for one ping to 220ms and > then drop three consecutive pings and then go right back to I'm completely at a loss why I'm getting loss, the 6509 isn't even hardly > tapped and the routers are doing fine on resources. Max ethernet > utilization is about 20%. Has anybody ever had loss every minute or so? > this does not affect regular browsing but the gamers on our network are > throwing a fit. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38452&t=38397 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Design Best Practices [7:38453]
Im rather new to the Cisco world but have with other vendors. I need some help with design Best Practices. Recently there was a post that told us the max switch hop in a network should be about 7 hops. As a reseller, I am working with a customer who has the following network design: Internet-3600-PIX-6500(r)-G-6500(s)-G-5500-5000-3500-1900-10M-3COMhub Unless indicated by a G or 10M, the link between devices is 100M. The 6500(r) does all the routing, the 6500(s) is where about 7 5500s hang off on Gig fiber. Each 5500 has about 3-4 5000s connected with 100M fiber. Each 5000 has about 10-12 3500s which have about 8-12 1900s. Each of the 1900s have about 4-8 3COM 10M hubs with students. Their teachers and admin staff sit on 10m & 100M links in the 5500s & 5000s. The 6500(s) has about 200 users via 100M. All the links support trunking until you hit a 1900. Ive over-simplified for this example, but I think you get the idea. This network just sort of grew this way over the years. Older equipment is pushed out to the edge as newer equipment is installed in the core. They report a lot of random problems all blamed on the network. Their firmware is pretty up to date and the hardware is reliable. While they are still using AppleTalk, a little IPX and mostly IP, I believe their network is too complex with all the switch hops. I want to propose a redesign that puts a user no more than three hops from the core 6500. This may mean new single mode fiber in some locations and upgrades to hardware in other locations. Im not looking for design help, Im looking for a smooth way of telling the customer their design is the problem, not the hardware itself. Any suggestions on how you have approached a customer or better yet, your boss, on the need to have a proper design, even if it means additional investment in fiber and effort to implement?? I appreciate the help from this group Jeff Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38453&t=38453 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Embryonic connections [7:38451]
Can anyone explain the term embryonic connections? I have a box that has increasing dropped embryonic connections which if I knew exactly what the term meant maybe I could help this Telco figure out what is wrong with their box that they say has no problems must be my router thing going on. Thanks! Steve Smith MCSE, CCNA, CCDA Data Networks Technical Manager Freeliant Inc. [EMAIL PROTECTED] The brave may not live forever, but the cautious never live. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38451&t=38451 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Packet loss on OSPF LAN [7:38397]
If you will, I will walk down from the Internet. We are load-sharing a connection to ATT and GBLX, each DS-3 terminates on it's own router that have HSRP between them. These "Internet" routers are connected to a 6509 that also has two more routers connected that handle some T1's and some cable modem customers. Between these four routers there is iBGP and OSPF running. If I'm a cable modem customer and I'm pinging out to the other side or this side of the Internet DS-3 then I will see <10ms response times until about ever 60-62 seconds it will increase for one ping to 220ms and then drop three consecutive pings and then go right back to <10ms pings. I'm completely at a loss why I'm getting loss, the 6509 isn't even hardly tapped and the routers are doing fine on resources. Max ethernet utilization is about 20%. Has anybody ever had loss every minute or so? this does not affect regular browsing but the gamers on our network are throwing a fit. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38450&t=38397 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: about routing protocols [7:38393]
OSPF flods ever 1/2 hour. -- RFC 1149 Compliant. ""Chuck"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > OSPF, BGP, and EIGRP send updates only upon initializing or when there have > been changes ( new routes added, old routes deleted ) therefore they do not > advertise "periodically", which implied predictable regularity > > > ""John Green"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > C and D (info about links and routes) is always true > > for all routing protocols because that is what is > > routing is all about. > > > > A (periodic updates): RIP does that for sure. not sure > > for ospf and bgp. > > B: hello mechanism... not sure if all do, but i guess > > it is true as well (guess though) > > > > > > --- mlh wrote: > > > Hi, there, > > > > > > The following question has been given a reference > > > answer : ABCD > > > But I am not sure: All routing protocols update > > > periodically? > > > All of them send hello message? what is the > > > difference between > > > information about links and routes? > > > > > > What are some characteristics of routing protocols? > > > > > > A - Send periodic updates. > > > B - Have a separate hello mechanism. > > > C - Exchange information about links. > > > D - Exchange information about routes. > > > E - No answer is correct > > [EMAIL PROTECTED] > > > > > > __ > > Do You Yahoo!? > > Yahoo! Sports - live college hoops coverage > > http://sports.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38449&t=38393 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: OT/ Pass one Lab and hold two CCIE certs ? [7:38402]
I'm slow guys and gals, what with all these numbers after the CCIE? What CCIE #52254 summposed to mean? -- RFC 1149 Compliant. ""Dennis Laganiere"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > That's cute, but I think I'll wait for ccie #12648430 > > --- Dennis > > -Original Message- > From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]] > Sent: Friday, March 15, 2002 10:35 AM > To: [EMAIL PROTECTED] > Subject: Re: OT/ Pass one Lab and hold two CCIE certs ? [7:38402] > > > I get it! ;-) > > Priscilla > CNX 01CCDD > > At 11:49 AM 3/15/02, Phil Barker wrote: > >What about the one who passes out as CCIE #52254 ? > > > >Phil. > > --- John Neiberger > >wrote: > Change your last name to Ccie? :-) > > > > > > Or, include both the written and lab exam, e.g. John > > > Neiberger, CCIE > > > Written, CCIE R&S #12005. > > > > > > Nah, because only one of those is a cert. I give > > > up, what's the trick? > > > > > > > > > John > > > > > > >>> "Phil Barker" > > > 3/15/02 8:44:23 AM >>> > > > How can you get CCIE after your name twice by only > > > passing 1 CCIE Lab exam ? > > > > > > > > > PS : Lateral thinking may be required > > > > > > > > > Phil. > > > > > > __ > > > Do You Yahoo!? > > > Everything you'll ever need on one web page > > > from News and Sport to Email and Music Charts > > > http://uk.my.yahoo.com > >[EMAIL PROTECTED] > > > >__ > >Do You Yahoo!? > >Everything you'll ever need on one web page > >from News and Sport to Email and Music Charts > >http://uk.my.yahoo.com > > > Priscilla Oppenheimer > http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38448&t=38402 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: TACACS+ Server [7:38324]
Solaris buddy. Do you know how to build one? >From: Brian >To: Ray Smith >CC: [EMAIL PROTECTED] >Subject: Re: TACACS+ Server [7:38324] >Date: Thu, 14 Mar 2002 16:52:17 -0800 (PST) > >I suspect that depends slightly on the od u want to use? >BSD, Linux, and Solaris will all run on that, which r u planning to use? > > Bri > >On Thu, 14 Mar 2002, Ray Smith wrote: > > > Does anyone know how to build/setup a TACACS+ Server on a Sparc-5? > > > > Ray > > > > > > _ > > Chat with friends online, try MSN Messenger: http://messenger.msn.com _ Send and receive Hotmail on your mobile device: http://mobile.msn.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38447&t=38324 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
OFF TOPIC - Politics on list [7:38445]
OK that does it. Your friendly moderator is now deleting out of hand any political opinion post in the moderator's queue Not all such messages hit the queue, of course, but any that do - PLONK! there are plenty of newsgroups where this discussion is more appropriate. Paul - want to set up a filter blocking the "American need to think" thread? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38445&t=38445 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Guidance needed. [7:38444]
Friends my name is Sharan, I am new to this list, I need some guidance from you experienced guys, I am currently preparing for CCNP but Cisco has released the beta for CCNP so when are they going to replace the actual tests ? should I wait for the new tests or I should carry on with 640-50* series. Thanks. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38444&t=38444 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: OT/ Pass one Lab and hold two CCIE certs ? [7:38402]
That's cute, but I think I'll wait for ccie #12648430 --- Dennis -Original Message- From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]] Sent: Friday, March 15, 2002 10:35 AM To: [EMAIL PROTECTED] Subject: Re: OT/ Pass one Lab and hold two CCIE certs ? [7:38402] I get it! ;-) Priscilla CNX 01CCDD At 11:49 AM 3/15/02, Phil Barker wrote: >What about the one who passes out as CCIE #52254 ? > >Phil. > --- John Neiberger >wrote: > Change your last name to Ccie? :-) > > > > Or, include both the written and lab exam, e.g. John > > Neiberger, CCIE > > Written, CCIE R&S #12005. > > > > Nah, because only one of those is a cert. I give > > up, what's the trick? > > > > > > John > > > > >>> "Phil Barker" > > 3/15/02 8:44:23 AM >>> > > How can you get CCIE after your name twice by only > > passing 1 CCIE Lab exam ? > > > > > > PS : Lateral thinking may be required > > > > > > Phil. > > > > __ > > Do You Yahoo!? > > Everything you'll ever need on one web page > > from News and Sport to Email and Music Charts > > http://uk.my.yahoo.com >[EMAIL PROTECTED] > >__ >Do You Yahoo!? >Everything you'll ever need on one web page >from News and Sport to Email and Music Charts >http://uk.my.yahoo.com Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38443&t=38402 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Off Topic - Riddle - "The Obvious Questio [7:38336]
This is totally OT - but I've got a bunch of VoIP books, including the CIPT documentation and the Cisco interactive CD (all original). I keep meaning to put then up on ebay, but I never seem to get around to it. If anybody wants to trade something interesting for them, let me know off-line and I'll send you a picture of what I've got... --- Dennis -Original Message- From: Hartnell, George [mailto:[EMAIL PROTECTED]] Sent: Friday, March 15, 2002 10:02 AM To: [EMAIL PROTECTED] Subject: RE: Off Topic - Riddle - "The Obvious Question" [7:38336] Interesting, sometimes the obvious can be elusive. "Pull more copper", is the obvious. Depending upon the telco layout, of course. But, like many of Chuck's musings, this brings up some more "real world" questions. Given: Investment in analog/digital cu based phone sets at buildings. A score, or more, of PBX's currently on telco copper. New fiber to each PBX building for voice and data. (6 strands, sm) What transport over that fiber would be most cost-effective in the near term? How about the longer-term? Where would convergence fit in the calculations? Let'see. Fiber T1 modems are simple, easy. Pluses. Minus? Old technology, difficult for data guys to manage well, no convergence factor. IP transport for telephones over the fiber pair. Pluses, data guys understand IP, ok convergence path. Bit more costly, currently, though. True VoIP. Haven't heard really glowing reports from large scale, lower budget, institutions,...yet. "The" convergence path. Costly. Throw out yer copper investment(s). Of course this is not an exhaustive discussion. Just a number of ways 'round the communications barn. Best, G. VP OGC > > Subject: Off Topic - Riddle - "The Obvious Question" [7:38336] > > Hint - consider the ways one might convert analogue to optic. > > Chuck Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38437&t=38336 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Help!! Token Ring + RJ45 [7:38372]
Pin assignment of Token Ring http://www.cisco.com/univercd/cc/td/doc/product/rtrmgmt/switprob/inst_4_7/ca ble.htm Regard, ""George Siaw"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hi Guys, > > Would anybody know if a standard CAT5/RJ45 cross over cable can connect > two token ring devices? Both interfaces have RJ45 interfaces. > > If that will not work, could somebody tell me what the pinout is then > suppose to be. > > Maybe, I have forgotten my concepts but can this stuff be connected > back2back. > > Regards, > George. > > > > _ > Do You Yahoo!? > Get your free @yahoo.com address at http://mail.yahoo.com Pin assignment of Token Ring http://www.cisco.com/univercd/cc/td/doc/product/rtrmgmt/switprob/inst_4_7/ca ble.htm Regard, ""George Siaw"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hi Guys, > > Would anybody know if a standard CAT5/RJ45 cross over cable can connect > two token ring devices? Both interfaces have RJ45 interfaces. > > If that will not work, could somebody tell me what the pinout is then > suppose to be. > > Maybe, I have forgotten my concepts but can this stuff be connected > back2back. > > Regards, > George. > > > > _ > Do You Yahoo!? > Get your free @yahoo.com address at http://mail.yahoo.com cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38442&t=38372 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: about routing protocols [7:38393]
OSPF, BGP, and EIGRP send updates only upon initializing or when there have been changes ( new routes added, old routes deleted ) therefore they do not advertise "periodically", which implied predictable regularity ""John Green"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > C and D (info about links and routes) is always true > for all routing protocols because that is what is > routing is all about. > > A (periodic updates): RIP does that for sure. not sure > for ospf and bgp. > B: hello mechanism... not sure if all do, but i guess > it is true as well (guess though) > > > --- mlh wrote: > > Hi, there, > > > > The following question has been given a reference > > answer : ABCD > > But I am not sure: All routing protocols update > > periodically? > > All of them send hello message? what is the > > difference between > > information about links and routes? > > > > What are some characteristics of routing protocols? > > > > A - Send periodic updates. > > B - Have a separate hello mechanism. > > C - Exchange information about links. > > D - Exchange information about routes. > > E - No answer is correct > [EMAIL PROTECTED] > > > __ > Do You Yahoo!? > Yahoo! Sports - live college hoops coverage > http://sports.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38441&t=38393 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Cisco 4500m bootflash issue [7:38405]
Thanks that is what I am trying to do, if I can find another 4500. I did not erase the boot flash. I did not even touch the furthest simm, but it is corrupted. All I did was remove the two regular flash simms to upgrade to 16mbs of flash so I can use 12.1 for the IE lab. Otherwise, if I can find another 45/700 with the bootflash simm I can borrow it, pop it into my router and be back in business according to Cisco's TAC site. Had this 4500 had a newer ROMMON I could have recovered the bootflash via the console port but that too is not the case. I even tried to load the boot image on the flash simm on another router, I got the image down but when I transferred the simm back to the 4500 the first file was still not found. I was hoping for someplace that sold the simm with a boot image and/or newer ROMMON chip. If you know of anyplace or someone willing to mail me the simm to get started I will return the simm with a check for their help.. Thanks again A Strobel /JS Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38440&t=38405 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: pirority group damn it [7:38084]
At 03:42 AM 3/15/02, Cisco Breaker wrote: >Excuse me for the configuration mistyping but before I had change my config >my access list was different than that . It belongs to another network ip >like 172.16.1.2. Anyway thanks for the correction. I want to make sure that >these priority or custom queuing methods are only used when congestion >happens. So I was thinking right. I think Cisco recommends not using fancy queuing unless you are already experiencing congestion. Your best solution to avoid the slowness you mentioned may be to remove the priority queuing statements. >This group is great.. I always read this newsgroup but post occasionally. >But when you post you really get an answer. Knowledge sharing, great. I >remember those years that you cant find an answer and can't ask to anyone. >Stand by yourself , eat yourself. I love that! I've never heard that saying, but I'm going to use it now. ;-) >But now if you can't understand or can't >solve it, somebody might have done it before and can enlighten you. This is >rellay grea. > >Best regards, > >Cisco Breaker > > >""Priscilla Oppenheimer"" wrote in message >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Your access-list 150 and priority list say to make traffic from the > > firewall be highest priority. All other IP traffic appears to be the >lowest > > priority. But what traffic does your firewall actually send? > > > > The term firewall gets used to mean all sorts of things including proxy > > servers. But if your firewall is simply a device that examines packets and > > allows or doesn't allow, it is not the source IP address for most traffic. > > The source address is the end host client or server. > > > > Perhaps what you want is to change the list to all devices on the 10.1.1.0 > > network, rather than just the firewall. > > > > Priscilla > > > > At 03:41 AM 3/13/02, Cisco Breaker wrote: > > >Hi all, > > > > > >I have a question regarding priority groups. We have 2 firewalls. >10.1.1.2 > > >and 10.1.1.3. I am using 10.1.1.2 . But even if I am using 10.1.1.2 the > > >connection is slow as before. What is wrong with my config? Any answer >will > > >be highly appreciated. > > > > > >Best regards, > > > > > >Ciscobreaker, > > >CCNP,CCDP > > > > > >Router#sh run > > >Building configuration... > > > > > >Current configuration : 2121 bytes > > >! > > >version 12.1 > > >service timestamps debug uptime > > >service timestamps log uptime > > >service password-encryption > > >service udp-small-servers > > >! > > >hostname Router > > >! > > >enable secret 5 $1$J0OT$To6EJUMsXnNQN6v.yGy9R1 > > >enable password ak > > > > > >interface Ethernet0 > > > ip address 10.1.1.1 255.255.255.0 > > >! > > >interface Serial0 > > > bandwidth 128000 > > > ip address 192.168.1.2 255.255.255.0 > > > priority-group 1 > > >! > > >interface Serial1 > > > no ip address > > >! > > >no ip classless > > >ip route 0.0.0.0 0.0.0.0 192.168.1.1 > > > > > >no ip http server > > >! > > >no logging trap > > >access-list 150 permit ip host 10.1.1.2 any > > >priority-list 1 protocol ipx medium > > >priority-list 1 protocol pad normal > > >priority-list 1 protocol ip high list 150 > > >priority-list 1 default low > > >! > > > > > >line con 0 > > >line aux 0 > > >line vty 0 4 > > > password ak login > > >! > > >end > > > > > > 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=38439&t=38084 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: about routing protocols [7:38393]
C and D (info about links and routes) is always true for all routing protocols because that is what is routing is all about. A (periodic updates): RIP does that for sure. not sure for ospf and bgp. B: hello mechanism... not sure if all do, but i guess it is true as well (guess though) --- mlh wrote: > Hi, there, > > The following question has been given a reference > answer : ABCD > But I am not sure: All routing protocols update > periodically? > All of them send hello message? what is the > difference between > information about links and routes? > > What are some characteristics of routing protocols? > > A - Send periodic updates. > B - Have a separate hello mechanism. > C - Exchange information about links. > D - Exchange information about routes. > E - No answer is correct [EMAIL PROTECTED] __ Do You Yahoo!? Yahoo! Sports - live college hoops coverage http://sports.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38438&t=38393 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Timeouts on timeslots of channelized E1 [7:38371]
Try testing head to head. That is the only true way to test a circuit. A loop will only verify connectivity. Vijendra Jaiswal wrote: >Hello All , > >Secenario: >Channelized E1 card on 3600 series router connected to Mux at Telco end . > >Observations: >When the E1 is completely looped the Telco gets the loop very fine on the >BERT meter .No slips , No errors > >Problem: >When any of the individual timeslots on the E1 is looped then the Telco gets >slip error on the BERT meter .Due to this any of the 64K circuits configured >on any of the timeslots gets at least 2 ping timeouts out of every 1000 ping >packets when any of the timeslot is looped from the Cisco or Telco end. > >Solution tried: >1) Changed the clock source from internal/external on the channelized E1 >card but the problem remains the same. >2) Changed 02 cards at TELCO end , problem remains the same . > >Cisco WAN champions pls let me have your feedback on the above problem so as >to resolve it. > >Thanks in advance. >Vijendra. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38436&t=38371 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: OT/ Pass one Lab and hold two CCIE certs ? [7:38402]
I get it! ;-) Priscilla CNX 01CCDD At 11:49 AM 3/15/02, Phil Barker wrote: >What about the one who passes out as CCIE #52254 ? > >Phil. > --- John Neiberger >wrote: > Change your last name to Ccie? :-) > > > > Or, include both the written and lab exam, e.g. John > > Neiberger, CCIE > > Written, CCIE R&S #12005. > > > > Nah, because only one of those is a cert. I give > > up, what's the trick? > > > > > > John > > > > >>> "Phil Barker" > > 3/15/02 8:44:23 AM >>> > > How can you get CCIE after your name twice by only > > passing 1 CCIE Lab exam ? > > > > > > PS : Lateral thinking may be required > > > > > > Phil. > > > > __ > > Do You Yahoo!? > > Everything you'll ever need on one web page > > from News and Sport to Email and Music Charts > > http://uk.my.yahoo.com >[EMAIL PROTECTED] > >__ >Do You Yahoo!? >Everything you'll ever need on one web page >from News and Sport to Email and Music Charts >http://uk.my.yahoo.com Priscilla Oppenheimer http://www.priscilla.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38435&t=38402 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Layer 3 switch ? [7:38358]
so if I enable IRB on my 2501, I now have a layer 3 switch? ;-> ""mlh"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > According to Clark's Cisco LAN Switching(page 452 ), > layer 3 switching techniques can be grouped > into two categories: > Routing switches > Switching routers > > mlh > > - Original Message - > From: "Larry Letterman" > To: > Sent: Friday, March 15, 2002 2:48 AM > Subject: RE: Layer 3 switch ? [7:38358] > > > > A true router, 2621/3640/7200, is not usually considered > > a L3 switch. A 6500 with an MSFC module installed can be > > is a L3 switch and will perform L2/L3 routing and switching. > > > > A 6500 without the MSFC module is just a large high speed switch, > > capable of only L2 switching. > > > > A layer 3 switch usually routes the first packet in the flow of data > > and then switches the rest in the switching hardware. This is why L3 > > routing/switching is quite a bit faster. A traditional router will use > > IOS software to determine routes and the switch each packet between the > > interfaces in the router. > > > > > > Larry Letterman > > Cisco Systems > > [EMAIL PROTECTED] > > > > > > -Original Message- > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of > > John Green > > Sent: Thursday, March 14, 2002 10:50 PM > > To: [EMAIL PROTECTED] > > Subject: Layer 3 switch ? [7:38358] > > > > > > Is it ok to refer to a "router" as a Layer 3 switch ? > > > > cisco 6500 was referred to as a Layer 3 switch. > > > > question: does it(6500) have routing capabilities ? > > - > > > > to connect to different vlans one needs a router. > > right ?? (as shown below) > > switchA ROUTER---switchB > > > > but say some nodes connected to switchB are on the > > vlan of switchA. so now to connect switchA and switchB > > can router be ok ? > > -- > > > > __ > > Do You Yahoo!? > > Yahoo! Sports - live college hoops coverage > > http://sports.yahoo.com/ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38418&t=38358 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Cisco [7:38434]
Has anyone seen the Cisco Professional Study Group? All I am reading on this feed is politics. Please post your personal views of the world elsewhere! Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38434&t=38434 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Off Topic - Riddle - "The Obvious Question" [7:38336]
Interesting, sometimes the obvious can be elusive. "Pull more copper", is the obvious. Depending upon the telco layout, of course. But, like many of Chuck's musings, this brings up some more "real world" questions. Given: Investment in analog/digital cu based phone sets at buildings. A score, or more, of PBX's currently on telco copper. New fiber to each PBX building for voice and data. (6 strands, sm) What transport over that fiber would be most cost-effective in the near term? How about the longer-term? Where would convergence fit in the calculations? Let'see. Fiber T1 modems are simple, easy. Pluses. Minus? Old technology, difficult for data guys to manage well, no convergence factor. IP transport for telephones over the fiber pair. Pluses, data guys understand IP, ok convergence path. Bit more costly, currently, though. True VoIP. Haven't heard really glowing reports from large scale, lower budget, institutions,...yet. "The" convergence path. Costly. Throw out yer copper investment(s). Of course this is not an exhaustive discussion. Just a number of ways 'round the communications barn. Best, G. VP OGC > > Subject: Off Topic - Riddle - "The Obvious Question" [7:38336] > > Hint - consider the ways one might convert analogue to optic. > > Chuck Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38432&t=38336 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
OSPF Database Filter [7:38431]
There are two related commands that prevent flooding of OSPF LSAs: ospf database-filter all out neighbor a.b.c.d database-filter all out I'm curious about how precise they're being with the word 'flooding'. Will this command stop *all* LSAs or does it simply filter out the periodic flooding of LSAs roughly every 30 minutes? Again, I don't have a way to test this at work at the moment and I can't find a better explanation on CCO, at least so far. It seems to me that if it stops all LSAs, there's not too much difference between that and the passive-interface command. The command references specifically use the word 'flooding' so at this point I'm thinking they are only referring to the periodic flooding of LSAs and not the other types of LSA exchanges. Regards, John Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=38431&t=38431 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
