Re: can't ping the Sc0 interface ip address [7:58383]
try to check layr 1 and 2 of the physical port 3/1, and the vlans that they are in, check the show int 3/1 command, and please post it. guy Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58387&t=58383 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Passed Cisco IP Telephony [7:58386]
Hi Group, Today I passed the Cisco IP Telephony Exam.I used the cisco Press book by David Lovell and I had a bad experience with this book.The cover page of the book is misleading as it says prepare for IP telephony Certification with this book. To my experience this book is not sufficient for passing the exam as it does not cover all the topics probed in the exam. There is PDF on IP telephony design guide on cisco's web site,I feel the book is a copy of that.The design guide has more than what is covered in this book.I feel spending $60 on this book is not worth as same information you can find on http://www.cisco.com/univercd/cc/td/doc/product/voice/ip_tele/network/. About the exam,It has 70 questions, passing score is 699 and have 2 hrs to answer them.I used cisco site extensively for preparing for this exam. Kind Regards/Thangavel V M **Disclaimer Information contained in this E-MAIL being proprietary to Wipro Limited is 'privileged' and 'confidential' and intended for use only by the individual or entity to which it is addressed. You are notified that any use, copying or dissemination of the information contained in the E-MAIL in any manner whatsoever is strictly prohibited. *** Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58386&t=58386 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: can't ping the Sc0 interface ip address [7:58383]
are both sc0 interfaces in the same vlan... is the trunk carrying all the vlans ? Kevin GU wrote: >Hi, >I have a C4006 in the Local LAN already, all the while it is working fine. I >need more ports for user device, so add one more c5009 switch. >I've connected a C5009 and a C4006 switches with a cross cable on port 3/1. >Set ip address 53.245.35.6/24 for C4006's Sc0 interface. Set ip address >53.245.35.3/24 for C5009's Sc0 interface. But I can't ping each other. I set >the port to trunk. so the users connected to C5009 are able to access the >whole network. But I still can't ping the Sc0 management IP address. >Any one can help me? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58385&t=58383 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
640-604 Switching [7:58384]
Anyone interested on trading study questions .. I have a new pdf file for routing... looking for a pdf for switching Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58384&t=58384 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
can't ping the Sc0 interface ip address [7:58383]
Hi, I have a C4006 in the Local LAN already, all the while it is working fine. I need more ports for user device, so add one more c5009 switch. I've connected a C5009 and a C4006 switches with a cross cable on port 3/1. Set ip address 53.245.35.6/24 for C4006's Sc0 interface. Set ip address 53.245.35.3/24 for C5009's Sc0 interface. But I can't ping each other. I set the port to trunk. so the users connected to C5009 are able to access the whole network. But I still can't ping the Sc0 management IP address. Any one can help me? Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58383&t=58383 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Support Exam [7:58366]
Passing score is 776, I failed by 6 points and taking it in 2 weeks again. Look at cisco outline and know in depth what output of commands look like and tell you...know IP cmds/diags inside/out. Good luck! Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58382&t=58366 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CSS1/CCSP [7:58241]
Yeah I agree, because even cisco's website is not good about it. This will give your book an edge plus a great resource on the job and CCIE Security Lab. Thanks, Shahid Richard Deal wrote:Shahid, Unlike the CiscoPress book which omits this very important configuration component, I've spent some time in by book about dealing with multiple interfaces as it relates to address translation AND filtering, like ACLs and conduits. Probably one of the most difficult configuration tasks on a PIX is dealing with a PIX with muliple interfaces, especially when it comes to address translation. So I definitely spent some time talking about these topics and how to configure your PIX in this situation. Hope this helps. If you have any other questions, don't hesitate to holler. Cheers! -- Richard A. Deal Visit my home page at http://home.cfl.rr.com/dealgroup/ Author of Cisco PIX Firewalls, CCNA Secrets Revealed!, CCNP Remote Access Exam Prep, CCNP Switching Exam Cram, and CCNP Cisco LAN Switch Configuration Exam Cram Cisco Test Prep author for QuizWare, providing the most comprehensive Cisco exams on the market. ""Shahid Muhammad Shafi"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hey Richard, > I am about to purchase ur book but just one quick question: Did u cover any > details regarding multiple interfaces configuration examples like 0,100,99 > and 70. Thanks > Shahid > Richard Deal wrote:Mark, > > Actually, Mark, I'm one step ahead of you :-). My PIX book came out at the > end of October from McGraw-Hill/Osborne. I wrote it as a non-certification > book, but it covers everything you'd see on the new PIX exam. You can check > out a free chapter on Osborne's web site: > http://shop.osborne.com/cgi-bin/osborne/0072225238.html (watch the wrap!). > > I also have some extra stuff on my web site that I couldn't fit in the book > because of page constraints. Just vist my home page below. > > Cheers! > -- > > Richard A. Deal > > Visit my home page at http://home.cfl.rr.com/dealgroup/ > > Author of Cisco PIX Firewalls, CCNA Secrets Revealed!, CCNP Remote Access > Exam Prep, CCNP Switching Exam Cram, and CCNP Cisco LAN Switch Configuration > Exam Cram > > Cisco Test Prep author for QuizWare, providing the most comprehensive Cisco > exams on the market. > > > > ""Mark Smith"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > So when are you going to write one, Rich? > > We're waiting. :) > > > > > > Quoting Richard Deal : > > > > > John, > > > > > > The CSS1 exams are valid until the end of January, > > > upon which you must take > > > the new exams. CiscoPress doesn't have any books out > > > yet on the new tests. > > > > > > Cheers! > > > -- > > > > > > Richard A. Deal > > > > > > Visit my home page at > > > http://home.cfl.rr.com/dealgroup/ > > > > > > Author of Cisco PIX Firewalls, CCNA Secrets Revealed!, > > > CCNP Remote Access > > > Exam Prep, CCNP Switching Exam Cram, and CCNP Cisco > > > LAN Switch Configuration > > > Exam Cram > > > > > > Cisco Test Prep author for QuizWare, providing the > > > most comprehensive Cisco > > > exams on the market. > > > > > > > > > ""John Cianfarani"" wrote in message > > > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > > Can we still write CSS1 or has it been replaced with > > > the CCSP? > > > > > > > > Thanks > > > > John > > > > > > > > -Original Message- > > > > From: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED]] > > > > Sent: Thursday, November 28, 2002 8:30 PM > > > > To: [EMAIL PROTECTED] > > > > Subject: RE: CSS1/CCSP [7:58241] > > > > > > > > I havent take the new CSI exam, but for CSS1 i > > > suggest you do the > > > > following > > > > : MCNS - PIX - VPN - IDS, and if you already pass > > > all of them, i dont > > > > think > > > > you would have problems with CSI. > > > > > > > > > > > > Ardi > > > [EMAIL PROTECTED] > Shahid Muhammad Shafi > "Every man dies; not every man really lives" > > remember, if God bringz u 2 it, He WILL bring u thru it!!!- > > Please help feed hungry people worldwide http://www.hungersite.com/ > A small thing each of us can do to help others less fortunate than ourselves > > > - > Do you Yahoo!? > Yahoo! Mail Plus - Powerful. Affordable. Sign up now Shahid Muhammad Shafi "Every man dies; not every man really lives" remember, if God bringz u 2 it, He WILL bring u thru it!!!- Please help feed hungry people worldwide http://www.hungersite.com/ A small thing each of us can do to help others less fortunate than ourselves - Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58381&t=58241 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Qos wred !? [7:58243]
can you please explain this: random-detect precedence 5 200 1000 100 where the should bee every 100 packet. "where the should be every 100 packet" the what? in your example, 200 is the min, 1000 is the max and 100 is the exceed-threshold meaning that 1 packet out of 100 will be dropped if the avergage queue size is greater than 1000? Am I understanding this correctly? Thanks, Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58380&t=58243 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Software for Statistical Profiling [7:58277]
Thanks for the info - I was looking at using the ErlangC model due to the nature of computer networks. Currently, my modelling is based on assuming an application takes 2 seconds to complete a task if it had 32kbps of bandwidth reserved for it, I can use the Erlang model to calculate whether 95% of transactions can be completed within say 2.3 seconds (with the 0.3 seconds being queue delay) - but by changing the bandwidth I change my underlying assumption of 2 seconds. Ie, if I allocate 64kbps, then the application may only takes 1.2 seconds and my model changes accordingly. The traditional Erlang model applies well on a packet-by-packet basis (just like queues of people in the bank, etc), but I'm not sure of its applicability to a series of packets on a whole which make up a transaction. Regards Richard -Original Message- From: charles dunkirk [mailto:[EMAIL PROTECTED]] Sent: Saturday, 30 November 2002 12:38 AM To: [EMAIL PROTECTED] Subject: Re: Software for Statistical Profiling [7:58277] Try here for erlang calculator http://www.erlang.com/ There are 2 type B and C . B assumes blocked calls don't call back and C assumes they stay in queue. Chuck Dunkirk The Long and Winding Road wrote: >Richard, the software used for your telephone booth problem is called >an Ehrlang calculator. it seems that you could use an Ehrlang >calculator to do this as well. There are a number of web sites that >have Ehrlang calcs. A google search should reveal a bunch of them. > >A long time ago, in statistics class, we used to do something called >"monte carlo simulations" to figure out stuff like this also. I don't >remember much about the mechanics. Got a statistics professor on you >campus? > >Chuck > >-- >TANSTAAFL >"there ain't no such thing as a free lunch" > > > > >""Larkin, Richard"" wrote in message >[EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > >>I recall in Uni that we used te Poisson distribution and some >>mathematical formulae to say that if we have x people arrive per hour >>at a phone booth, and the average phone call is y minutes, we would >>need z phone booths to ensure that 95% of the time, people don't have >>to wait (or only have to >> >wait > >>xx minutes). >> >>Transposing this to application budgeting, I have an application at a >> >remote > >>site which has a max of 5 concurrent users and the worst transaction >>they >> >do > >>will hog the 64kbps line for 30 seconds (if it is the only >>transaction). >> >>My question is without revising my lecture notes, what software would >>help me determine what bandwidth to allocate this application so that >>95% (or >>whatever) of the time the transaction can be completed in yy seconds? >> >>Is there any good software out there which would help me with this? >> >>Cheers >>Rik Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58379&t=58277 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Cisco Internet Solutions Specialist anyone? [7:58378]
Does anybody here have/(go for) the Cisco Internet Solutions Specialist certification? I'm afraid I've chosen the most obscure certification CISCO has to offer... feeling sort of lonely and ridiculous... Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58378&t=58378 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: VLANs: To be or not to be [7:58350]
Thanks for your answers Larry and Elijah. I also think that there was something wrong with the OmniCore (I didn't work directly with it). I have been also told by a Nortel guy that with their Passport 8600 I wouldn't have any problem (slowness) at all for routing between VLANs, and I belive him, but I want to gather some experiences before implementing L3 switching in other place. Elijah could you say me what version code were you using when you experimented that problems with alcatel? (to compare with our version it would be enough with knowing the year). By the way, we have also experienced some power supply failures... Thanx again, I think I'll definitively recommend to use L3-swithing. Elijah Savage III wrote: > > I want to first start out by saying you all know I am not here > to bash > anyone. But Larry you are right when you say something is wrong > with his > network and what was wrong with it was the name ALCATEL :). I > have > experience with the omni core switches and I can say I did not > like what > I saw in the products. I can go on and on about my experience > with them > also but I will not bore you all with details. The big problem > was power > supply failures, the other thing was slowness and the > recommended fix > from alcatel was always upgrade the software, and most times it > would > fix it but cause problems with other things. Right before I > left the > company they did seem to get good code to fix what we were > doing. But I > will say this because of all the money the company sunk into > them we > could not get atm to work between a 7500 and one of their > switches it > went on for 3 months pointing fingers back and forth, then we > got all of > them in one room Cisco and Alcatel and Cisco came armed with > all kinds > of docs about how they were following the rfc in their code > anyway > needless to say the code slinger from alcatel which had to fly > over here > from india for our meeting ended up having to redo some things > to get > compatibilty to play with other vendors in the ATM world. I > still talk > with the other guys I use to work with and they say all those > problems > are gone now and they are happy with Alcatel. So that is my > experience. > > But I would say with 8500 or 6500 core the CDA model from cisco > should > give you no problems or SLOWNESS. > > -Original Message- > From: Larry Letterman [mailto:[EMAIL PROTECTED]] > Sent: Sunday, December 01, 2002 4:11 AM > To: [EMAIL PROTECTED] > Subject: Re: VLANs: To be or not to be [7:58350] > > > I have first hand knowledge, we have implemented a > core/dist/access > network at cisco with L3 at the core and L2 at the acess end. > I have > also implemented a L3 data center using L3 dist routers and L2 > access to > the > servers. > > This design, from switch to switch across the L3 dist area, is > 1ms or > less in the data center > and only a couple of ms from most points in the core to most > points in > the dist. area. > > I would say there was something wrong with the network you were > using if > > the L3 switches > were slower than the L2 switched, flat network > > Larry Letterman > Network Engineer, IT-Lan > Cisco Systems > > David j wrote: > > >Hello group, I was wondering about the following question: > >Is worth to implement VLANs and L3-switching instead a flat > L2-network? > > >I know that this question has been discussed here several > times, but > >the answer is always the same: depends. What I would like to > know is if > > >sombody has implemented a L3-switched network following the > "Cisco > >style" (Core-distribution-access or collapsed core-access) and > now the > >performance is better than with a L2 network. I had an > experience with > >a network (about 1000 users) with VLANs and Alcatel > L3-switches that > >was terribly slow when you tried to transfer files between > VLANs so the > > >staff decided migrate to a flat network, that increased the > network > >performance noticeably. Do you have real experiences or links > talking > >about real experiences that I can check? > >Thanks and advance. > > Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58377&t=58350 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: VLANs: To be or not to be [7:58350]
I want to first start out by saying you all know I am not here to bash anyone. But Larry you are right when you say something is wrong with his network and what was wrong with it was the name ALCATEL :). I have experience with the omni core switches and I can say I did not like what I saw in the products. I can go on and on about my experience with them also but I will not bore you all with details. The big problem was power supply failures, the other thing was slowness and the recommended fix from alcatel was always upgrade the software, and most times it would fix it but cause problems with other things. Right before I left the company they did seem to get good code to fix what we were doing. But I will say this because of all the money the company sunk into them we could not get atm to work between a 7500 and one of their switches it went on for 3 months pointing fingers back and forth, then we got all of them in one room Cisco and Alcatel and Cisco came armed with all kinds of docs about how they were following the rfc in their code anyway needless to say the code slinger from alcatel which had to fly over here from india for our meeting ended up having to redo some things to get compatibilty to play with other vendors in the ATM world. I still talk with the other guys I use to work with and they say all those problems are gone now and they are happy with Alcatel. So that is my experience. But I would say with 8500 or 6500 core the CDA model from cisco should give you no problems or SLOWNESS. -Original Message- From: Larry Letterman [mailto:[EMAIL PROTECTED]] Sent: Sunday, December 01, 2002 4:11 AM To: [EMAIL PROTECTED] Subject: Re: VLANs: To be or not to be [7:58350] I have first hand knowledge, we have implemented a core/dist/access network at cisco with L3 at the core and L2 at the acess end. I have also implemented a L3 data center using L3 dist routers and L2 access to the servers. This design, from switch to switch across the L3 dist area, is 1ms or less in the data center and only a couple of ms from most points in the core to most points in the dist. area. I would say there was something wrong with the network you were using if the L3 switches were slower than the L2 switched, flat network Larry Letterman Network Engineer, IT-Lan Cisco Systems David j wrote: >Hello group, I was wondering about the following question: >Is worth to implement VLANs and L3-switching instead a flat L2-network? >I know that this question has been discussed here several times, but >the answer is always the same: depends. What I would like to know is if >sombody has implemented a L3-switched network following the "Cisco >style" (Core-distribution-access or collapsed core-access) and now the >performance is better than with a L2 network. I had an experience with >a network (about 1000 users) with VLANs and Alcatel L3-switches that >was terribly slow when you tried to transfer files between VLANs so the >staff decided migrate to a flat network, that increased the network >performance noticeably. Do you have real experiences or links talking >about real experiences that I can check? >Thanks and advance. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58376&t=58350 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
CSS 11150 Booting Problem [7:58372]
Dear All, After a power outage, one of our CSS is failing to boot up properly. Every time its rebooted, it goes straight to the OFFDM although the Primary boot device has been selected to be Disk. I have formatted the Disk and loaded a new image, it booted with the new image once and its Loading to OFFDM every time its rebooted. I would be really grateful if someone could shed some light on this problem. Regards, Zahid Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58372&t=58372 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: ntp packets modes [7:58371]
A very good explanation of NTP modes can be found in RFC 1305 (NTP v3 Specification, Implementation and Analysis). http://www.faqs.org/rfcs/rfc1305.html Brian Dennis, CCIE #2210 (R&S/ISP Dial/Security) -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of John Tafasi Sent: Saturday, November 30, 2002 11:26 PM To: Cisco Group Study; ccielab Subject: ntp packets modes the debug ntp packets command shows packets sent and received with different modes. What are these modes? can some one explain? R5-2503# Mar 6 02:42:08.879: NTP: rcv packet from 10.10.10.1 to 10.10.10.2 on BRI0: Mar 6 02:42:08.883: leap 0, mode 2, version 3, stratum 8, ppoll 64 Mar 6 02:42:08.887: rtdel (0.000), rtdsp 0009 (0.137), refid 7F7F0701 (12 7.127.7.1) Mar 6 02:42:08.891: ref AF428DF1.DDC96254 (02:41:53.866 UTC Sat Mar 6 1993) Mar 6 02:42:08.891: org AF428DCF.F7F245A8 (02:41:19.968 UTC Sat Mar 6 1993) Mar 6 02:42:08.895: rec AF428DCF.FC06E685 (02:41:19.984 UTC Sat Mar 6 1993) Mar 6 02:42:08.899: xmt AF428E00.DDC524C4 (02:42:08.866 UTC Sat Mar 6 1993) Mar 6 02:42:08.903: inp AF428E00.E1C1EE1B (02:42:08.881 UTC Sat Mar 6 1993) R5-2503# Mar 6 02:42:23.966: NTP: xmit packet to 10.10.10.1: Mar 6 02:42:23.970: leap 0, mode 1, version 3, stratum 8, ppoll 1024 Mar 6 02:42:23.970: rtdel (0.000), rtdsp 000B (0.168), refid 7F7F0701 (12 7.127.7.1) Mar 6 02:42:23.974: ref AF428DEF.F7D4D2C0 (02:41:51.968 UTC Sat Mar 6 1993) Mar 6 02:42:23.978: org AF428E00.DDC524C4 (02:42:08.866 UTC Sat Mar 6 1993) Mar 6 02:42:23.982: rec AF428E00.E1C1EE1B (02:42:08.881 UTC Sat Mar 6 1993) Mar 6 02:42:23.986: xmt AF428E0F.F7B05F8D (02:42:23.967 UTC Sat Mar 6 1993) R5-2503# Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58371&t=58371 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: OSPF ABR question [7:57990]
Peter van Oene wrote: > > Non intra-area ASBRs are found via type 4 LSAs (ASBR Summary) > which > follow the same rules as type 3 summaries and thus prevent non > zero > areas from providing transit toward ASBRs (that is where the > non zero > area contains neither the source nor ASBR) You're right. I went back and looked at my lab config. I had had a link configured as non-0 when I thought it was in area 0. Thus the incorrect conclusion regarding externals and non-0 areas for transit. It's interesting that OSPF will, apparently, always prefer an OSPF intra-area path over an inter-area path to a destination, even when the inter-area path is less cost. This has implications for certain area 0 topologies (ie a ring built from p2p links) and thus can result in sub-optimal paths for certain source routers and destinations. This would happen when a router, R, in area 0 is trying to reach a destination, D in a non-0 area, and there are two ABRs. ABR_1 and ABR_2 will install intra-area routes to the destination D. ABR_1 and ABR_2 will advertise into area 0 their costs to D via type 3 LSAs. Router R will compute its cost to D through ABR_1 and ABR_2. It might determine that ABR_2 is the prefered ABR through which R should route traffic to D. However, if the path between R and ABR_2 causes the traffic to go through ABR_1, traffic from R to D will enter the non-0 area at ABR_1 (since OSPF prefers intra-area paths over inter-area path, even if more expensive; ABR_1 thus installs the intra-area routes). Thus, traffic from R->D takes a sub-optimal path. Note this behvaior has nothing to do with summarization. Given the topology of area 0, little might be possible in avoiding the sub-optimal routing. However, R would know, when it computes its tree to D, that traffic will flow through ABR_1 to get to ABR_2. Looking at the cost to D from router R (via show ip route) it shows the cost as if the path enters the non-0 area at ABR_2. However, this isn't the path traffic will follow. Now, R has the information to make the determination that traffic will flow into the non-0 area at ABR_1. Why would R not show the cost to D via ABR_1 as this is the path that traffic takes? Thanks > > > R2->ABR_1->R5->ABR_2->R3 > > > > > > > > > > > > > > The > > > > result with an ABR using non-zero summary information in > its > > > > routing table is that some intra area0 traffic might > > > unexpectedly > > > > transit a non-zero area. "Unexpectedly" here means that > the > > > > area0 SPF would compute a path to the destination, and > from > > > > the SPF perspective, traffic would remain on area0. But > when > > > > the traffic hit the ABR, it might forward the packets > over > > > > the non-0 area as that's a better path towards the > > > destination. > > > > > > Ok, I'm losing you a bit here. Maybe an example would > help. > > > Forwarding > > > decisions in OSPF are either source to destination, source > to > > > ABR, ABR > > > to ABR, or ABR to destination. In all of these cases, the > > > source and > > > final or intermediary source shared an identical LSDB from > > > which they > > > will calculate similar SPF trees. Hence, there shouldn't > be a > > > case in a > > > stable network where two nodes in the same area find a > > > different best > > > path through the area. In the Area 0 case, assuming the > > > traffic is > > > destined to a non-0 area, the ABRs simply forward that > traffic > > > to the > > > nearest ABR, upon which all ABRs should agree with the > > > exception of > > > multi-abr areas whos ABRs will not be able to forward back > > > toward the > > > backbone due to route preference. This might be more > confusing > > > than > > > your paragraph though ;-) > > > > See if the example above clarifies this situation. > > > > > > > > > > > > A virtual link is the mechanism to "formalize" the use > > > > of a non-0 area for transit. The benefit of the VL > mechanism > > > > over the thinking above is that a VL allows routers in > area0 > > > to > > > > be cognizant of the non-0 area as another way to reach > > > destinations > > > > in area0 and thus include these costs into it's LSDB and > SPF > > > calcs. > > > > > > > > Compare an ABR including summary LSA information in it's > > > routing > > > > table (what I've been asking about) and an ABR at the end > if a > > > > VL. How is the routing information received at this ABR > > > > different? > > > > > > The virtual link allows LSAs to flood through the > non-backbone > > > area. > > > These LSAs allow the backbone area databases to remain > > > identical for all > > > routers in the area which is a necessity for link state > > > protocols. > > > Breaking this will more than likely lead to routing > > > instability. > > > Certainly in some basic topologies, you might be able to > relax > > > some > > > rules and still provide stable routing, but the question is, > > > what are > > > you gaining with this topo
RE: Support Exam [7:58366]
Here's a review article that I wrote when I took the exam. http://tcpmag.com/column.asp?id=EXAM&cid=202 Good luck! -Original Message- From: Siddiqi Kenan [mailto:[EMAIL PROTECTED]] Sent: Sunday, December 01, 2002 8:13 AM To: [EMAIL PROTECTED] Subject: Support Exam [7:58366] Hi there, I got my Support exam day after tomorrow. Any study tips? I am not feeling too good about it. Basically 'cos it requires a lot of depth and my knowledge ain't up to the mark I think. Also, what is the passing score? Thanks in advance for all your help. Cheers, Kenan Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58369&t=58366 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CSS1/CCSP [7:58241]
Shahid, Unlike the CiscoPress book which omits this very important configuration component, I've spent some time in by book about dealing with multiple interfaces as it relates to address translation AND filtering, like ACLs and conduits. Probably one of the most difficult configuration tasks on a PIX is dealing with a PIX with muliple interfaces, especially when it comes to address translation. So I definitely spent some time talking about these topics and how to configure your PIX in this situation. Hope this helps. If you have any other questions, don't hesitate to holler. Cheers! -- Richard A. Deal Visit my home page at http://home.cfl.rr.com/dealgroup/ Author of Cisco PIX Firewalls, CCNA Secrets Revealed!, CCNP Remote Access Exam Prep, CCNP Switching Exam Cram, and CCNP Cisco LAN Switch Configuration Exam Cram Cisco Test Prep author for QuizWare, providing the most comprehensive Cisco exams on the market. ""Shahid Muhammad Shafi"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hey Richard, > I am about to purchase ur book but just one quick question: Did u cover any > details regarding multiple interfaces configuration examples like 0,100,99 > and 70. Thanks > Shahid > Richard Deal wrote:Mark, > > Actually, Mark, I'm one step ahead of you :-). My PIX book came out at the > end of October from McGraw-Hill/Osborne. I wrote it as a non-certification > book, but it covers everything you'd see on the new PIX exam. You can check > out a free chapter on Osborne's web site: > http://shop.osborne.com/cgi-bin/osborne/0072225238.html (watch the wrap!). > > I also have some extra stuff on my web site that I couldn't fit in the book > because of page constraints. Just vist my home page below. > > Cheers! > -- > > Richard A. Deal > > Visit my home page at http://home.cfl.rr.com/dealgroup/ > > Author of Cisco PIX Firewalls, CCNA Secrets Revealed!, CCNP Remote Access > Exam Prep, CCNP Switching Exam Cram, and CCNP Cisco LAN Switch Configuration > Exam Cram > > Cisco Test Prep author for QuizWare, providing the most comprehensive Cisco > exams on the market. > > > > ""Mark Smith"" wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > So when are you going to write one, Rich? > > We're waiting. :) > > > > > > Quoting Richard Deal : > > > > > John, > > > > > > The CSS1 exams are valid until the end of January, > > > upon which you must take > > > the new exams. CiscoPress doesn't have any books out > > > yet on the new tests. > > > > > > Cheers! > > > -- > > > > > > Richard A. Deal > > > > > > Visit my home page at > > > http://home.cfl.rr.com/dealgroup/ > > > > > > Author of Cisco PIX Firewalls, CCNA Secrets Revealed!, > > > CCNP Remote Access > > > Exam Prep, CCNP Switching Exam Cram, and CCNP Cisco > > > LAN Switch Configuration > > > Exam Cram > > > > > > Cisco Test Prep author for QuizWare, providing the > > > most comprehensive Cisco > > > exams on the market. > > > > > > > > > ""John Cianfarani"" wrote in message > > > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > > Can we still write CSS1 or has it been replaced with > > > the CCSP? > > > > > > > > Thanks > > > > John > > > > > > > > -Original Message- > > > > From: [EMAIL PROTECTED] > > > [mailto:[EMAIL PROTECTED]] > > > > Sent: Thursday, November 28, 2002 8:30 PM > > > > To: [EMAIL PROTECTED] > > > > Subject: RE: CSS1/CCSP [7:58241] > > > > > > > > I havent take the new CSI exam, but for CSS1 i > > > suggest you do the > > > > following > > > > : MCNS - PIX - VPN - IDS, and if you already pass > > > all of them, i dont > > > > think > > > > you would have problems with CSI. > > > > > > > > > > > > Ardi > > > [EMAIL PROTECTED] > Shahid Muhammad Shafi > "Every man dies; not every man really lives" > > remember, if God bringz u 2 it, He WILL bring u thru it!!!- > > Please help feed hungry people worldwide http://www.hungersite.com/ > A small thing each of us can do to help others less fortunate than ourselves > > > - > Do you Yahoo!? > Yahoo! Mail Plus - Powerful. Affordable. Sign up now Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58368&t=58241 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CSS1/CCSP [7:58241]
Mark, Thanks for ordering my book. Actually, I was in discussion with McGraw-Hill, Syngress and CiscoPress and all three wanted me to publish a book on the PIX. CiscoPress wanted me to do a certification book and I wanted to do a stand-alone book. I was leary about going with Syngress since they're a small publisher and my last small publisher, The Coriolis Group, went belly-up earlier this year. Let me know what you think about my book--good and bad :-). Also, make sure you take advantage of the stuff that I couldn't fit into the book by visiting my web site. Cheers! -- Richard A. Deal Visit my home page at http://home.cfl.rr.com/dealgroup/ Author of Cisco PIX Firewalls, CCNA Secrets Revealed!, CCNP Remote Access Exam Prep, CCNP Switching Exam Cram, and CCNP Cisco LAN Switch Configuration Exam Cram Cisco Test Prep author for QuizWare, providing the most comprehensive Cisco exams on the market. ""Mark Smith"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > I was teasing, Richard. I ordered yours and a new one by a Callisma(?) and > Umer Khan called Cisco Security Specialist's Guide to PIX Firewall from > Bookpool.com yesterday after the post here mentioning it. When are you going > to write one for CiscoPress anyway? I'm surprised they haven't approached > you about it. Never did understand why Ceeesco used to have Firewall IOS > covered on the PIX test anyway. Glad to see they've changed it. While I may > go for CCSP the reason I bought yours is because of the areas you cover in > it. I work with PIX's and have no training on them. It's a small part of my > daily chores and I don't have the time to devote to learning about them that > I wish I did. Too many other things to do and keep up with. Not much > available on the PDM. Cisco's got squat on their site about it other than > installation. Wonder what all I can do thru the PDM that I just don't know > about. > Thanks for writing the book. > > Mark > > Quoting Richard Deal : > > > Mark, > > > > Actually, Mark, I'm one step ahead of you :-). My PIX > > book came out at the > > end of October from McGraw-Hill/Osborne. I wrote it as > > a non-certification > > book, but it covers everything you'd see on the new > > PIX exam. You can check > > out a free chapter on Osborne's web site: > > http://shop.osborne.com/cgi-bin/osborne/0072225238.html > > (watch the wrap!). > > > > I also have some extra stuff on my web site that I > > couldn't fit in the book > > because of page constraints. Just vist my home page > > below. > > > > Cheers! > > -- > > > > Richard A. Deal > > > > Visit my home page at > > http://home.cfl.rr.com/dealgroup/ > > > > Author of Cisco PIX Firewalls, CCNA Secrets Revealed!, > > CCNP Remote Access > > Exam Prep, CCNP Switching Exam Cram, and CCNP Cisco > > LAN Switch Configuration > > Exam Cram > > > > Cisco Test Prep author for QuizWare, providing the > > most comprehensive Cisco > > exams on the market. > > > > > > > > ""Mark Smith"" wrote in message > > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > So when are you going to write one, Rich? > > > We're waiting. :) > > > > > > > > > Quoting Richard Deal : > > > > > > > John, > > > > > > > > The CSS1 exams are valid until the end of January, > > > > upon which you must take > > > > the new exams. CiscoPress doesn't have any books > > out > > > > yet on the new tests. > > > > > > > > Cheers! > > > > -- > > > > > > > > Richard A. Deal > > > > > > > > Visit my home page at > > > > http://home.cfl.rr.com/dealgroup/ > > > > > > > > Author of Cisco PIX Firewalls, CCNA Secrets > > Revealed!, > > > > CCNP Remote Access > > > > Exam Prep, CCNP Switching Exam Cram, and CCNP > > Cisco > > > > LAN Switch Configuration > > > > Exam Cram > > > > > > > > Cisco Test Prep author for QuizWare, providing the > > > > most comprehensive Cisco > > > > exams on the market. > > > > > > > > > > > > ""John Cianfarani"" wrote in message > > > > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > > > Can we still write CSS1 or has it been replaced > > with > > > > the CCSP? > > > > > > > > > > Thanks > > > > > John > > > > > > > > > > -Original Message- > > > > > From: [EMAIL PROTECTED] > > > > [mailto:[EMAIL PROTECTED]] > > > > > Sent: Thursday, November 28, 2002 8:30 PM > > > > > To: [EMAIL PROTECTED] > > > > > Subject: RE: CSS1/CCSP [7:58241] > > > > > > > > > > I havent take the new CSI exam, but for CSS1 i > > > > suggest you do the > > > > > following > > > > > : MCNS - PIX - VPN - IDS, and if you already > > pass > > > > all of them, i dont > > > > > think > > > > > you would have problems with CSI. > > > > > > > > > > > > > > > Ardi > > > > [EMAIL PROTECTED] > > [EMAIL PROTECTED] Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58367&t=58241 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Support Exam [7:58366]
Hi there, I got my Support exam day after tomorrow. Any study tips? I am not feeling too good about it. Basically 'cos it requires a lot of depth and my knowledge ain't up to the mark I think. Also, what is the passing score? Thanks in advance for all your help. Cheers, Kenan Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58366&t=58366 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
configure spanning tree mode [7:58365]
Hi, How do i configure the spanning tree mode (cst, pvst, pvst+) on my 6509, 4006, 3524 and 3548 switches. I had faced problems while establishing a trunk link inbetween a 4006 and a 3524 switch. Has anyone faced any problems in such a scenario. Thanks. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58365&t=58365 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Last Minute Thought - OSPF authentication issue? [7:58352]
Are you sure you specified the area under ospf for authenticaton? -- RFC 1149 Compliant. ""The Long and Winding Road"" wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > check this out. > > R10 > -- > Neighbor ID Pri State Dead Time Address Interface > 222.222.222.7 1 FULL/DR 00:01:58149.22.4.7 Serial0 > 222.222.222.111 FULL/DR 00:00:38149.22.252.2 Ethernet0 > Router_10# > > interface Serial0 > ip address 149.22.4.10 255.255.255.0 > encapsulation frame-relay > no ip route-cache > ip ospf authentication message-digest > ip ospf authentication-key 7 qwertyzzyzx > > R7 > - > Neighbor ID Pri State Dead Time Address Interface > 222.222.222.101 FULL/BDR00:01:57149.22.4.10 Serial1 > Router_7# > > interface Serial1 > ip address 149.22.4.7 255.255.255.0 > encapsulation frame-relay > no ip route-cache > ip ospf authentication message-digest > ip ospf authentication-key 7 cisco > > By my reckoning, the adjacency should NOT form because of the mismatched > passwords. Both routers have the area 0 authentication message-digest > command under the ospf process. > > This is exactly what I don't want to know at this point in my life :-) > > -- > TANSTAAFL > "there ain't no such thing as a free lunch" Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58364&t=58352 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Learnkey or Keystone learning [7:58303]
I have taken courses at www.knowledgenet.com I would say they are good, especially their costs are not bad - and the material is very close to what you will find on the exam. More important (to me) is that it is interactive - the best part of it actually. I now find it easier to study on my PC rather than the same material in the book! Go for it! Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58363&t=58303 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: VLANs: To be or not to be [7:58350]
I have first hand knowledge, we have implemented a core/dist/access network at cisco with L3 at the core and L2 at the acess end. I have also implemented a L3 data center using L3 dist routers and L2 access to the servers. This design, from switch to switch across the L3 dist area, is 1ms or less in the data center and only a couple of ms from most points in the core to most points in the dist. area. I would say there was something wrong with the network you were using if the L3 switches were slower than the L2 switched, flat network Larry Letterman Network Engineer, IT-Lan Cisco Systems David j wrote: >Hello group, I was wondering about the following question: >Is worth to implement VLANs and L3-switching instead a flat L2-network? >I know that this question has been discussed here several times, but the >answer is always the same: depends. What I would like to know is if sombody >has implemented a L3-switched network following the "Cisco style" >(Core-distribution-access or collapsed core-access) and now the performance >is better than with a L2 network. >I had an experience with a network (about 1000 users) with VLANs and Alcatel >L3-switches that was terribly slow when you tried to transfer files between >VLANs so the staff decided migrate to a flat network, that increased the >network performance noticeably. >Do you have real experiences or links talking about real experiences that I >can check? >Thanks and advance. Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58362&t=58350 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
AS 5400 lost carrier [7:58361]
Dear All, I am running AS 5400 with 16 PRI (analog modems only) and I am facing modem disconnection after 15 to 30 minutes and the reason is lost carrier Any info about the reason of this lost carrier (cabling or modem or chassis or configuration etc..) Thanks and best regards _ _ _ _ _ _ _ _ _ _ Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58361&t=58361 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: ntp packets modes [7:58359]
>From RFC 1305. 0 - unspecified 1 - symmetric active 2 - symmetric passive 3 - client 4 - server 5 - broadcast 6 - reserved for NTP control message 7 - reserved for private use Symmetric Active (1): A host operating in this mode sends periodic messages regardless of the reachability state or stratum of its peer. By operating in this mode the host announces its willingness to synchronize and be synchronized by the peer. Symmetric Passive (2): This type of association is ordinarily created upon arrival of a message from a peer operating in the symmetric active mode and persists only as long as the peer is reachable and operating at a stratum level less than or equal to the host; otherwise, the association is dissolved. However, the association will always persist until at least one message has been sent in reply. By operating in this mode the host announces its willingness to synchronize and be synchronized by the peer. --- John Tafasi wrote: > the debug ntp packets command shows packets sent and > received with different > modes. What are these modes? can some one explain? > > R5-2503# > Mar 6 02:42:08.879: NTP: rcv packet from 10.10.10.1 > to 10.10.10.2 on BRI0: > Mar 6 02:42:08.883: leap 0, mode 2, version 3, > stratum 8, ppoll 64 > Mar 6 02:42:08.887: rtdel (0.000), rtdsp 0009 > (0.137), refid 7F7F0701 > (12 > 7.127.7.1) > Mar 6 02:42:08.891: ref AF428DF1.DDC96254 > (02:41:53.866 UTC Sat Mar 6 > 1993) > Mar 6 02:42:08.891: org AF428DCF.F7F245A8 > (02:41:19.968 UTC Sat Mar 6 > 1993) > Mar 6 02:42:08.895: rec AF428DCF.FC06E685 > (02:41:19.984 UTC Sat Mar 6 > 1993) > Mar 6 02:42:08.899: xmt AF428E00.DDC524C4 > (02:42:08.866 UTC Sat Mar 6 > 1993) > Mar 6 02:42:08.903: inp AF428E00.E1C1EE1B > (02:42:08.881 UTC Sat Mar 6 > 1993) > R5-2503# > Mar 6 02:42:23.966: NTP: xmit packet to 10.10.10.1: > Mar 6 02:42:23.970: leap 0, mode 1, version 3, > stratum 8, ppoll 1024 > Mar 6 02:42:23.970: rtdel (0.000), rtdsp 000B > (0.168), refid 7F7F0701 > (12 > 7.127.7.1) > Mar 6 02:42:23.974: ref AF428DEF.F7D4D2C0 > (02:41:51.968 UTC Sat Mar 6 > 1993) > Mar 6 02:42:23.978: org AF428E00.DDC524C4 > (02:42:08.866 UTC Sat Mar 6 > 1993) > Mar 6 02:42:23.982: rec AF428E00.E1C1EE1B > (02:42:08.881 UTC Sat Mar 6 > 1993) > Mar 6 02:42:23.986: xmt AF428E0F.F7B05F8D > (02:42:23.967 UTC Sat Mar 6 > 1993) > R5-2503# __ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=58360&t=58359 -- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
