Clearing show buffer counters
Hi,=20 I want to clear "show buffer" counters, but i couldn't find a command. = The command "clear counters" doesn't effect "show buffer" output. Thanks. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CISCO Router MIB files-2610
I downloaded couple weeks ago, they are .MIB files. I will send u link from work. Inamul ""Hitesh Pathak"" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Dear All, > > Can anybody tell me that where can I find MIB files for CISCO Router 2610. I went to CISCo's web site but what I found was all the files with extension .MY . I don't understand how to go with this one. > > thanks in advance > > HP > > ___ > Visit http://www.visto.com/info, your free web-based communications center. > Visto.com. Life on the Dot. > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Clearing show buffer counters
There is no command to clear the buffer counters, and I do not think there i will ever be one. The only way to do it is to reload the box. Rich On Feb 8, 10:28am, Bulent Sahin chatted about: > Subject:Clearing show buffer counters > Hi,=20 > I want to clear "show buffer" counters, but i couldn't find a command. = > The command "clear counters" doesn't effect "show buffer" output. > Thanks. > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] >-- End of waffle from Bulent Sahin -- *** Please copy your emails to [EMAIL PROTECTED] *** #---# #.. ..| Richard Gallagher | Office:+32 2 704 5000 # #|| ||| Euro-CATS | Direct:+32 2 704 5421 # #|| ||| Cisco Systems Belgium | Fax: +32 2 704 6000 # # | Pegasus Park | email: [EMAIL PROTECTED] # #.:||:.:||:.| De Kleetlaan, 6A | # # Cisco Systems | BE 1831 Diegem| http://www.cisco.com/tac # #---# "Normal people believe that if it ain't broke, don't fix it. Engineers believe that if it ain't broke, it doesn't have enough features yet." Check out this link: http://www.cisco.com/warp/customer/63/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
deleting of my loopback interface
Sorry anyone knows how to delete a loopback interface if it is incorrectly created? regards, suaveguru __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: deleting of my loopback interface
Nice an easy! router# conf t router# no interface loopback x Rich On Feb 8, 10:53am, suaveguru chatted about: > Subject:deleting of my loopback interface > Sorry anyone knows how to delete a loopback interface > if it is incorrectly created? > > > regards, > > suaveguru > > __ > Do You Yahoo!? > Get personalized email addresses from Yahoo! Mail - only $35 > a year! http://personal.mail.yahoo.com/ > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] >-- End of waffle from suaveguru -- *** Please copy your emails to [EMAIL PROTECTED] *** #---# #.. ..| Richard Gallagher | Office:+32 2 704 5000 # #|| ||| Euro-CATS | Direct:+32 2 704 5421 # #|| ||| Cisco Systems Belgium | Fax: +32 2 704 6000 # # | Pegasus Park | email: [EMAIL PROTECTED] # #.:||:.:||:.| De Kleetlaan, 6A | # # Cisco Systems | BE 1831 Diegem| http://www.cisco.com/tac # #---# "Normal people believe that if it ain't broke, don't fix it. Engineers believe that if it ain't broke, it doesn't have enough features yet." Check out this link: http://www.cisco.com/warp/customer/63/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: E&M TYPE 5
Hi , I seen this many times , works different on other models, try changing the IOS , I got E&M type 5,4 Wire working on 3662 with IOS 12.1T. You may want to try this version . ""Clare, Charles"" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > > I have an interesting issue with E&M type 5, 4 Wire, Immediate Start, > signalling. > > NEC 7660 PABX connect 4 E&M Ports to 3662 router with NM-2V with 2 E&M > Cards. > > E&M signalling not reliable. > > If I replace 3662 with MC3810 with 4 E&M Interfaces all works well > If I replace 3662 with 1750-4V with 2 E&M Cards all works well > If I replace 3662 with 2621 with NM-2V with 2 E&M cards performs like 3662. > > When I say not reliable router will only answer a call in E&M 50% of the > time and require E&M to be hung up for 5 Seconds before another call attempt > can be made. > > > Seen this type of response ? > > Running 12.1(5)T > > > Charles > > CCNP-Voice,CCDP,MCSE+I > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
real time interface Load commands in IOS
Hello, THIS IS A STUPID QUESTION ALERT does anyone know if there is a command in the ios that will tell me the load on a serial interface in real time I will be a remote logging in (so CS,HP-OV) out of question At the moment i have to keep typing SH INT S0/1 it reports "Txload" Rxload" this is V.good but i have to keep typing it AND yes i know i should really be using CiscoWorks or something like that but i just wan`t to watch an interface when remote to see what level it is running at . regards Docile Bloke _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Sniffer Program
Can someone recommend a good WindowsME sniffer? Brian _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
ISDN testing question
Hello colleagues, I have a question regarding how to test an ISDN connection for a dialer interface that is mapped to a loopback interface. I am used to dialer map statements where I can ping the IP address that the dialer is mapped to, and that brings up the ISDN link. The interface I want to test now does not have dialer map statements, but looks like this: interface Dialer102 description > IDSN Callback ID - Cologne, Germany ip unnumbered Loopback1 encapsulation ppp no ip route-cache ip ospf cost 1500 no ip mroute-cache dialer pool 1 dialer remote-name Router-Cologne dialer idle-timeout 300 dialer string 0031302341498 dialer string 0031302882561 dialer string 0031302893245 dialer string 0031302883823 dialer caller 31302883823 callback dialer caller 31302893245 callback dialer caller 31302882561 callback dialer caller 31302341498 callback dialer load-threshold 64 either dialer-group 1 no fair-queue pulse-time 0 no cdp enable ppp authentication chap callin ppp chap hostname HUB-ROUTER ppp multilink Is there a way to test if the ISDN works without bringing down the serial line ? Thanks for your help in advance. Regards, Hans _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
HSRP on my WKS subnet
Guys, i have a slight problem ... i have 2 6509`s running HSRP on my comms vlan 4 these 65`s do all routing between Vlan`s i have sniffer pro on my local workstation , vlan 5 i am seeing multicast traffic from 224.0.0.2 which has HSRP packet headers (that are hello`s)every 3 seconds Should i be seeing these i don`t think i should i think the only Vlan that these should be seen on is the comms vlan 4 ? answers please.. also if i am right how can i stop the HSRP hello bieng sent to all the other vlan`s many thanks in advance steve _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Dialout with ACS Server - Controlling outgoing phone number
Hello, I want to know if it is possible to control the outgoing phone number the user enter into the dialout utility. (For example if the user call a free internet provider and due to my policy he is not autorized). regards, christophe. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Dialout with ACS Server - Controlling outgoing phone number
Hi Unfortunately I am somwere behind of you on this track. So I can't help you. :-( Please could you tell me the configuration for a dialup connection and what software do u use for that. Are u using just ACS Server ? Hou did u set up the router ? Is there an kind of DDR ? THanks in advance Cristian -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 08, 2001 2:59 PM To: [EMAIL PROTECTED] Subject: Dialout with ACS Server - Controlling outgoing phone number Hello, I want to know if it is possible to control the outgoing phone number the user enter into the dialout utility. (For example if the user call a free internet provider and due to my policy he is not autorized). regards, christophe. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
NAT and FTP
Hi all! We came across a strange problem. We'we been doing NAT from ethernet to serial, all the things seem to be working, except FTP. Problem got resolved after turning off tcp header compression on serial. I couldn't find any notion of it on CCO. Is it a bug, or I'm missing somethings obvious? Regards George _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
River Delta Networks
Anyone ever heard of River Delta Networks? Any experiences, horror stories, opinions? I was just offered a perm job with them...I'm a contractor and don't really want to go back to perm, but I'm just trying to get more info since I've never heard of this company before. Thanks, BJ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
4000M+ for sale
Excellent condition, 4000M+ router for sale from my lab. $850.00 2 RJ 45 ethernet, 2 AUI ethernet 2 token ring 2 serial ports module # NS/34881/P/603659 (is this ISDN?) 16384K/4096K DRAM 8MB Flash Selling so I can buy 2509/2511, will certainly trade for one. Thanks! Jim Croyle _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Sniffer Program
You might try the program K9-2001. It's one of the best sniffers out there. It's uses the DUAL (Dogs Use A Light ) algorithm to search out any unsuspecting "hosts" that are hidden, even on the darkest of nights. Not only that but it then checks the Packet carried by any such "host" for any goodies such as the Rubber Protocol Chewy Toy (Patent Pending) or the Segment Biscuit. It also checks the CRC "Bytes"(Cats Reward Cats) on any such toys/food to make sure they have not been contaminated. As always though be careful because the K9-2001 sniffer is no compatible with all hardware such as the PC(Prissy Cats) but runs nicely on the MAC(Mice Against Cats). If Only I had paid more attention to my tagline... Joey Fowler ...Tis better to be thought a fool, then to open your mouth and remove all doubt. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 08, 2001 6:37 AM To: [EMAIL PROTECTED] Subject: Sniffer Program Can someone recommend a good WindowsME sniffer? Brian _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: NAT and FTP
Hi George, I came across the following information regarding FTP and NAT from the Cisco website. It sounds like this could be what was going on: CSCdk03906 When running NAT and encryption, FTP fails, but Telnet and ping work. The TCP checksum is not calculated correctly. Removing NAT or encryption resolves the problem. For performance reasons, decryption is not done until the packets are switched to the output interface. This caused the problem with IOS NAT, because NAT may need to do the payload translation for certain protocols. The affected protocols include FTP and NetBios, for example. Here is the complete URL for the article: http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/relnote/3600 ser/rn3600xk.htm Heather Buri -Original Message- From: George Kadeishvili [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 08, 2001 8:00 AM To: [EMAIL PROTECTED] Subject: NAT and FTP Hi all! We came across a strange problem. We'we been doing NAT from ethernet to serial, all the things seem to be working, except FTP. Problem got resolved after turning off tcp header compression on serial. I couldn't find any notion of it on CCO. Is it a bug, or I'm missing somethings obvious? Regards George _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Adding a Catalyst 6009 to existing network
set vtp mode client Carlton -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Washington Rico Sent: Thursday, February 08, 2001 1:07 AM To: [EMAIL PROTECTED] Subject: Adding a Catalyst 6009 to existing network Could someone tell me the procedure for adding a Catalsyt 6009 to my existing network. I understand that the connections must be trunked..I have no problem there. But when I connect the two trunks from my core Catalsyt 6500 to the access switch Catalsyt 6009, will the 6009 start receiving vlan information automatically? I do not want it to be a server of my current vtp domain. How do ensure that this will not happen?? Regards, Eric _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: River Delta Networks
http://www.rockymountainjobs.com/profile.asp?cno=1096 http://www.findarticles.com/m0EIN/2000_Nov_7/66658144/p1/article.jhtml Home Page http://www.riverdelta.com/ ""Bradley J. Wilson"" <[EMAIL PROTECTED]> wrote in message 002e01c091d8$ceea5100$ca01010a@bwilson">news:002e01c091d8$ceea5100$ca01010a@bwilson... > Anyone ever heard of River Delta Networks? Any experiences, horror stories, > opinions? I was just offered a perm job with them...I'm a contractor and > don't really want to go back to perm, but I'm just trying to get more info > since I've never heard of this company before. > > Thanks, > > BJ > > > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: HSRP on my WKS subnet
Yes, you should be seeing them... That is proper multicast behavior, and these packets would be seen for any VLAN that is running HSRP... Brant I. Stevens Internetwork Solutions Engineer Thrupoint, Inc. 545 Fifth Avenue, 14th Floor New York, NY. 10017 646-562-6540 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Stephen Skinner Sent: Thursday, February 08, 2001 8:00 AM To: [EMAIL PROTECTED] Subject: HSRP on my WKS subnet Guys, i have a slight problem ... i have 2 6509`s running HSRP on my comms vlan 4 these 65`s do all routing between Vlan`s i have sniffer pro on my local workstation , vlan 5 i am seeing multicast traffic from 224.0.0.2 which has HSRP packet headers (that are hello`s)every 3 seconds Should i be seeing these i don`t think i should i think the only Vlan that these should be seen on is the comms vlan 4 ? answers please.. also if i am right how can i stop the HSRP hello bieng sent to all the other vlan`s many thanks in advance steve _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Token Ring
Swap cables 1&2 with cables 4&5... This also works for a T-1 cross-over... Brant I. Stevens Internetwork Solutions Engineer Thrupoint, Inc. 545 Fifth Avenue, 14th Floor New York, NY. 10017 646-562-6540 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Pierre-Alex Sent: Wednesday, February 07, 2001 10:25 PM To: Jason Baker; [EMAIL PROTECTED] Subject: RE: Token Ring Hi Jason, I don't think so given what was written in the previous posts. However after the talk over the mysterious RFC 2549 or 1149 I don't quite know what to think. Maybe its time to do some more reading on token ring and figure it by ourselves. :) Regards, Pierre-Alex -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Jason Baker Sent: Wednesday, February 07, 2001 8:15 PM To: '[EMAIL PROTECTED]' Subject: Token Ring without the use of an MAU, is it possible to make a token ring RJ45 to RJ45 crossover cable or it the same as ethernet ? Regards, Jason Baker Network Engineer MCSE, CCNA _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: not quite sure...
The question is if Router B and Router C are routing, or if they are bridging... If they are routing, then Router B would re-transmit a packet. If bridging is happening, then Host A would retransmit... Hope this helps... Brant I. Stevens Internetwork Solutions Engineer Thrupoint, Inc. 545 Fifth Avenue, 14th Floor New York, NY. 10017 646-562-6540 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Dennis Laganiere Sent: Wednesday, February 07, 2001 11:32 PM To: '[EMAIL PROTECTED]' Subject: not quite sure... I've tried to diagram this question to make it clear... Host A is sending to Host D... A line error occurs on the serial link between Router-B and Router-C while passing a packet from Host-A to Host-B Devices - Host A-ROUTER B-ROUTER CHOST D Interfaces - (A1)(B1) (B2)(C1) (C2) (D1) What device would rebroadcast? I think that router-B (port B2) would realize an error had occured, and would resend, so the answer should be port B2, but I've been through all my books and can't find anything to confirm or deny my conclusion... Any thoughts? _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Token Ring White Paper
Several people have asked me where I got the Token Ring white paper that I used to study for the CCIE written. I got the paper from www.certificationzone.com when it was free for download a few months ago. Unfortunately, it is not free this month. If you have a membership you should definitely read this white paper. If you are not a member then go to their site and decide if it is worth spending the money. I was not a member, but others on the list have said it was a good investment. Caslow's book and the exam cram both have chapters about bridging and token ring that are also helpful although they do not explain it as well and as clearly as the white paper on certification zone. There is another document about Token Ring that is also helpful which can be found at http://www.groupstudy.com/notes/notepages/rif2.html I hope this helps everyone who is preparing for the CCIE Written. Hal _ Get your FREE download of MSN Explorer at http://explorer.msn.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
7000 Router
To All, Does the 7000 router need a special power supply to plug into? Help. Raheem _ Get your FREE download of MSN Explorer at http://explorer.msn.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: NAT and FTP
But this link only mentions 12.0(5)XK. I am using FTP with NAT and CET, the only complain I am having right now is the users find that small files, less than 1K, can not be transferred. No problem so far with big files. Jack ""Buri, Heather H"" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED].. . > Hi George, > > I came across the following information regarding FTP and NAT from the Cisco > website. It sounds like this could be what was going on: > > CSCdk03906 > > When running NAT and encryption, FTP fails, but Telnet and ping work. The > TCP checksum is not calculated correctly. Removing NAT or encryption > resolves the problem. > > For performance reasons, decryption is not done until the packets are > switched to the output interface. This caused the problem with IOS NAT, > because NAT may need to do the payload translation for certain protocols. > The affected protocols include FTP and NetBios, for example. > > Here is the complete URL for the article: > > http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/relnote/3600 > ser/rn3600xk.htm > > Heather Buri > > -Original Message- > From: George Kadeishvili [mailto:[EMAIL PROTECTED]] > Sent: Thursday, February 08, 2001 8:00 AM > To: [EMAIL PROTECTED] > Subject: NAT and FTP > > > Hi all! > We came across a strange problem. We'we been doing NAT from ethernet to > serial, > all the things seem to be working, except FTP. Problem got resolved > after turning off tcp header compression on serial. I couldn't find any > notion of it on CCO. Is it a bug, or I'm missing somethings obvious? > Regards > George > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: 7206 VXR config
The 2 Port FE LAN adapter for the 7206 (vip based module) is not as you might expect. It turns out cisco will tell you NOT to use it for regular ethernet 100 Mb traffic. Seems that board is intended for some sort of other application and works poorly as a regular ethernet I/O. Has bugs. I forget what the actual reason was (from cisco) but that cards intent is not for normal traffic. -Chuck > -Original Message- > From: Jim Healis [SMTP:[EMAIL PROTECTED]] > Sent: Thursday, January 25, 2001 5:18 PM > To: [EMAIL PROTECTED] > Subject: 7206 VXR config > > Has anyone ever used the RJ-45 port on the I/O controller on a 7206 to > actually pass traffic? > I'm worried that because it sits on a card that has other functions that > I won't get the needed performance from that port. Or that I won't be > able to use that port for for passing in-band traffic at all. > > So my decision is wavering between getting a 2-port FE LAN adapter or a > 1-port FE LAN adapter and using the RJ-45 port on the I/O controller. > > Any ideas? > > Jim > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: HSRP on my WKS subnet
is there a way of blocking them because i thought that as long as the clients can link to the virtual addressthen there would be no need for the hsrp hello (which are just for the cat`s and no-one else needs to know about them ) to be seen by all workstations...surely this is shoving un-neccasery packetsa into my Vlan... or am i completely off the mark many thanks steve >From: "Brant Stevens" <[EMAIL PROTECTED]> >Reply-To: "Brant Stevens" <[EMAIL PROTECTED]> >To: "Stephen Skinner" <[EMAIL PROTECTED]>, <[EMAIL PROTECTED]> >Subject: RE: HSRP on my WKS subnet >Date: Thu, 8 Feb 2001 11:02:46 -0500 > >Yes, you should be seeing them... That is proper multicast behavior, and >these packets would be seen for any VLAN that is running HSRP... > >Brant I. Stevens >Internetwork Solutions Engineer >Thrupoint, Inc. >545 Fifth Avenue, 14th Floor >New York, NY. 10017 >646-562-6540 > >-Original Message- >From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of >Stephen Skinner >Sent: Thursday, February 08, 2001 8:00 AM >To: [EMAIL PROTECTED] >Subject: HSRP on my WKS subnet > > >Guys, > >i have a slight problem ... i have 2 6509`s running HSRP on my comms vlan 4 >these 65`s do all routing between Vlan`s > >i have sniffer pro on my local workstation , vlan 5 > >i am seeing multicast traffic from 224.0.0.2 which has HSRP packet headers >(that are hello`s)every 3 seconds >Should i be seeing these i don`t think i should >i think the only Vlan that these should be seen on is the comms vlan 4 >? answers please.. > >also if i am right how can i stop the HSRP hello bieng sent to all the >other >vlan`s > >many thanks in advance > >steve >_ >Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. > >_ >FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > >_ >FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: 7000 Router
This is a message that was posted earlier during the week by one of the group members. Hope this helps. Pierre-Alex You're OK. I believe that the 7000 AC power supply is rated at 700 watts. volts times amps equals power. So power divided by voltage equals amps. Assuming normal electrical service in an US home 700/120 = 5.83 amps. The true current draw would be determined by the number and type of cards in the router. I have never taken a current reading of a working system. There is a large noisy blower in the chassis. The whole is a useful space heater for cold winter nights. The standard US cord has a plug end that fits a regular 15 Amp receptacle. I have run a 7000 at home. Most electrical receptacles are rated at 15 amps. A normal electrical branch circuit is rated at 20 amps - usable at 16 amps for continuous duty (over three hours). So all should be well. The problem is that normal electrical branch circuits have several (up to ten) receptacles on the circuit. The total load cannot exceed 16 amps. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Rah Sta Sent: Thursday, February 08, 2001 10:27 AM To: [EMAIL PROTECTED] Subject: 7000 Router To All, Does the 7000 router need a special power supply to plug into? Help. Raheem _ Get your FREE download of MSN Explorer at http://explorer.msn.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Price on Cisco 3600
I'm tring to setup my lab and I found several Cisco 3600's. What I ned to know is the value of the routers and how much I should offer for them. I know the cheeper the better. They have one WIC DSU/CSU and 1 ISDN module. Thanks _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Price on Cisco 3600
I normally go to http://www.cnet.com and look. If you search for CISCO 3620, you will see that the cheapest place is LanBlvd.com that can sell it to you for $1,844.- I have bought from them before (a Catalyst 3548), and they are reliable. If you want it cheaper than that, you probably have to look on auction sites (yahoo, amazon, ebay, etc.). Hth, Ole Ole Drews Jensen Systems Network Manager CCNA, MCSE, MCP+I RWR Enterprises, Inc. [EMAIL PROTECTED] http://www.CiscoKing.com NEED A JOB ??? http://www.oledrews.com/job -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 08, 2001 11:11 AM To: [EMAIL PROTECTED] Subject: Price on Cisco 3600 I'm tring to setup my lab and I found several Cisco 3600's. What I ned to know is the value of the routers and how much I should offer for them. I know the cheeper the better. They have one WIC DSU/CSU and 1 ISDN module. Thanks _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Packet Level / Sniffer Groupstudy? ?
There are a bunch of groups here... http://groups.yahoo.com/ Formerly known as egroups, they are now merged with Yahoo. Hth, Ole Ole Drews Jensen Systems Network Manager CCNA, MCSE, MCP+I RWR Enterprises, Inc. [EMAIL PROTECTED] http://www.CiscoKing.com NEED A JOB ??? http://www.oledrews.com/job -Original Message- From: Jerry Deer [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 08, 2001 11:10 AM To: '[EMAIL PROTECTED]' Subject: Packet Level / Sniffer Groupstudy? ? Hi Group, I have recieved so much insight and help from this groupstudy that im hoping that there is a simular groupstudy for sniffers/packet decoding etc. . Does anyone know of such a group, list or message board? any replies would be appreciated! Jerry _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re[2]: CISCO Router MIB files-2610
Just rename them to the appropriate extension, they'll work fine. Jeff Thursday, February 08, 2001, 1:27:44 AM, you wrote: D> I downloaded couple weeks ago, they are .MIB files. D> I will send u link from work. D> Inamul D> ""Hitesh Pathak"" <[EMAIL PROTECTED]> wrote in message D> [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... >> Dear All, >> >> Can anybody tell me that where can I find MIB files for CISCO Router 2610. D> I went to CISCo's web site but what I found was all the files with extension D> MY . I don't understand how to go with this one. >> >> thanks in advance >> >> HP >> >> D> ___ >> Visit http://www.visto.com/info, your free web-based communications D> center. >> Visto.com. Life on the Dot. >> >> _ >> FAQ, list archives, and subscription info: D> http://www.groupstudy.com/list/cisco.html >> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] >> D> _ D> FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html D> Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] -- Best regards, Jeffreymailto:[EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
CCIE Recertification UPDATE (Networkers not needed anymore)
Thanks to Mr. Zudal, CCIEs are no longered required to attend Networkers to recert for their CCIE status. -Brad Ellis CCIE#5796 Cisco Hardware: www.optsys.net From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 08, 2001 12:19 PM To: szudal@ Subject: CCIE Recertification Changes Dear CCIE, In 1997, we introduced the CCIE recertification program. At that time there were two requirements: attend 5 CCIE-level sessions at Networkers and successfully complete a CCIE recertification exam every two years. In response to your feedback, we have decided to drop the Networkers session requirement for recertification. We will still have CCIE-level sessions at selected Networkers, however effective February 1, 2001, attendance will no longer be mandatory for recertification. All CCIE recertification deadlines will remain the same. Effective February 1, 2001, a CCIE will be required to successfully complete one CCIE recertification exam every two years in accordance with your current deadline. As part of this program update, we will no longer be issuing recertification certificates. Exam results are downloaded automatically into the CCIE database. When the CCIE team receives your successful exam result, an email notification will be sent to you verifying your recertification status. If you have any questions, please write to [EMAIL PROTECTED] Good Luck with your CCIE recertification! Regards, CCIE Team _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
FW: Another 802.3 and Ethernet Question
-Original Message- From: Leigh Anne Chisholm [mailto:[EMAIL PROTECTED]] Sent: February 8, 2001 10:17 AM To: Jim Dixon Subject: RE: Another 802.3 and Ethernet Question Actually, what I'm saying is that John wanted to know whether or not he should change the default Ethernet frame type from Ethernet_II to Ethernet 802.3. My question was meant to provoke John to understand what the default frame type is used for--which really is a pre-requisite to be able to understand what benefits or drawbacks (if any) changing the default frame type would bring. Why Ethernet_II is the default frame type likely has to do with the fact that most packets that don't have a pre-determined Ethernet frame type don't require the functionality that's inherent within 802.3 or provided by the inclusion of an 802.2 header. It's a frame type that's supported by the most antique Ethernet equipment since it's the original Ethernet specification. I thought it was also worthy of discussion, because how the default Ethernet frame type is used by a router differs from IPX in that a router will route ANY IP Ethernet frame - not just the specified frame type. Comparing IPX Ethernet frame types to IP frame types is, in my opinion, somewhat akin to comparing apples and oranges. They're both fruits, but they've got differences that make each unique and unable to be compared. In summary, I've found that a small chunk of my brain has been "Howard Berkowitz-ized" -- or, in other words, the question that came to mind when John asked if he should change the default Ethernet frame type was... "What problem is it that you're trying to solve?" And without understanding when the default Ethernet frame type came into play, he couldn't assess what the implications of his change would be. If you don't mind, I'd like to cc this message to the Groupstudy group (minus this paragraph of course). I think it will help clarify in the minds of some, exactly what it was that I was trying to get at, and why. And I think you bring up some interesting points for thought... -- Leigh Anne -Original Message- From: Jim Dixon [mailto:[EMAIL PROTECTED]] Sent: February 8, 2001 9:07 AM To: Leigh Anne Chisholm Subject: RE: Another 802.3 and Ethernet Question Now, finally it begins to make sense what you were talking about. It was confusing us a bit. You are saying why go to all the trouble of having a dam DEFAULT type if they will either ignore, drop, or just frigging encapsulate the (@#*$(@#*&&$-ity-blank-ity packet anyway right? So your question was not how, or what, by WHY WHY WHY!!! :) the answer is It Depends on whom you ask as to what the answer will be. I suppose it had something to do with 802.3 being the MOST POPULAR with Novell be prolific earlier on. Then when they came out with an 802.2 support in what 3.12 < I think > it really showed that they were too proprietary and were coming around to the unix world's way of thinking. So I guess since there was always a mish-mash of protocols in networks being not-upgraded immediately but over time a decision had to be made on which protocol to support out of the box and how to support the protocols that were EXTRA on the network. I think maybe they just did what they had to do instead of what needed to happen. So in the end, we have no answers only I thought, you thought, and we all thinked thanked and thunk about it till it thunked itself into the future. Seriously though, thanks for telling us what you had in mind. have a good day and give your brain a break, you could stop by the Nasa homepage and watch NASA TV. Atlantis lifted off yesterday at about 17:30 Central time (Successfully) I was a little dissapointed because there was only a one sentence mention on the news about it but they spent 5 minutes talking about some wreck that just happened and killed some people. ANyWAY that's a different argument. See you _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: LLC type 1
>Anyone know if there's a LAN type out there that >uses LLC type 1 headers? > > Thanks, > > JD > Pretty much everything that isn't Ethernet II. Caveats: some Token Ring networks may use LLC type 2. LLC type 3 has been used in specialized real-time applications. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
various catalyst5505 syntax question..help as much as you can!
Hi...Dear All, Recently, we just took over the administrator of catalyst 5505 switches, my boss want me give me a full report on this switches in two days time. But I don't understand some of the syntax. Pls help as much as you can even you may only one of the question , welcome to contribute.. 1) What is mean by the following, how many vlan are there?? what is mean by mtu 1500 said 11 ? #vtp set vtp domain TOTO set vlan 1 name default type ethernet mtu 1500 said 11 state active set vlan 2 name VLAN0002 type ethernet mtu 1500 said 12 state active set vlan 3 name VLAN0003 type ethernet mtu 1500 said 13 state active set vlan 1002 name fddi-default type fddi mtu 1500 said 101002 state active set vlan 1004 name fddinet-default type fddinet mtu 1500 said 101004 state activ e stp ieee set vlan 1005 name trnet-default type trbrf mtu 1500 said 101005 state active st p ibm set vlan 1003 name token-ring-default type trcrf mtu 1500 said 101003 state acti ve mode srb aremaxhop 0 stemaxhop 0 backupcrf off ! 2)Which interface is sc0 refer to? I know this represent IP of the switches, but any secial meaning of sc0 1 ??? set interface sc0 1 50.200.45.252/255.255.255.0 50.200.45.255 3)why vlan1,2,3 setting is different from vlan1003,1005?? what is mean by spantree priority 16384?? why vlan1002,1004 not specify here? not in use?? #spantree #vlan 1 set spantree priority 16384 1 #vlan 2 set spantree priority 16384 2 #vlan 3 set spantree priority 16384 3 #vlan 1003 set spantree fwddelay 151003 set spantree maxage 201003 #vlan 1005 set spantree fwddelay 151005 set spantree maxage 201005set spantree portcost1/1 3006 4)What is the different between portcost and portvlancost? why the value different?? set spantree portcost1/1 3006 set spantree portcost1/2 3019 set spantree portvlancost 1/1 cost 3005 set spantree portvlancost 1/2 cost 3018 5)What is mean by portpri? cost 3004 4-8,11-15 what is mean?? #module 2 : 1-port Route Switch set spantree portcost2/1 3005 set spantree portpri 2/1 15 set spantree portvlancost 2/1 cost 3004 4-8,11-15 6)what is mean by trunk 3/5 off negotiate??? set trunk 3/5 off negotiate 1-1005 set trunk 3/6 off negotiate 1-1005 7)Generally in what kind of situation , we should disable the MLS in the catalyst switch? _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
LLC type 1
Anyone know if there's a LAN type out there that uses LLC type 1 headers? Thanks, JD __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Packet Level / Sniffer Groupstudy? ?
Hi Group, I have recieved so much insight and help from this groupstudy that im hoping that there is a simular groupstudy for sniffers/packet decoding etc. . Does anyone know of such a group, list or message board? any replies would be appreciated! Jerry _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Type-1 Cable
Greetings all, Cisco came out with an article about connecting type-1 cable to its switches, do you guys have a link on that? Thanks, Nabil _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: not quite sure...
Would Router B retransmit if Frame Relay was used as the encapsulation protocol? If so, how would Frame Relay detect the loss of the "packet"? What about X.25--would Router B retransmit? How would X.25 detect the loss? What about HDLC? PPP? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Brant Stevens Sent: February 8, 2001 9:10 AM To: Dennis Laganiere; [EMAIL PROTECTED] Subject: RE: not quite sure... The question is if Router B and Router C are routing, or if they are bridging... If they are routing, then Router B would re-transmit a packet. If bridging is happening, then Host A would retransmit... Hope this helps... Brant I. Stevens Internetwork Solutions Engineer Thrupoint, Inc. 545 Fifth Avenue, 14th Floor New York, NY. 10017 646-562-6540 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Dennis Laganiere Sent: Wednesday, February 07, 2001 11:32 PM To: '[EMAIL PROTECTED]' Subject: not quite sure... I've tried to diagram this question to make it clear... Host A is sending to Host D... A line error occurs on the serial link between Router-B and Router-C while passing a packet from Host-A to Host-B Devices - Host A-ROUTER B-ROUTER CHOST D Interfaces - (A1)(B1) (B2)(C1) (C2) (D1) What device would rebroadcast? I think that router-B (port B2) would realize an error had occured, and would resend, so the answer should be port B2, but I've been through all my books and can't find anything to confirm or deny my conclusion... Any thoughts? _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: T1 Link
At 11:58 PM 2/7/01, Santosh Koshy wrote: >Thanks priscilla, that helped tremendously... >If that is the case... then what is the most common L2 Encapsulation used >when usually setting up a T1 link...(point to point) >Is it safe to assume HDLC as that is the default encap on the cisco routers HDLC is common for point-to-point links, but Cisco's HDLC is non-standard, so if you were connecting to a non-Cisco router you would probably use PPP. In many parts of the world, Frame Relay is the most common WAN encapsulation, but it sounded like you were asking about point-to-poin circuits, so that might not be relevant. Priscilla >- Original Message - >From: "Priscilla Oppenheimer" <[EMAIL PROTECTED]> >Newsgroups: groupstudy.cisco >Sent: Wednesday, February 07, 2001 11:50 PM >Subject: Re: T1 Link > > > > Seeing that nobody had really addressed your question yet, I decided to > > take a stab at it. > > > > T1 is a high-speed digital carrier facility developed by AT&T in the 1950s > > to support long-haul pulse-code modulation (PCM) voice transmission. T1 > > provides digital voice circuits or "channels." There are 24 channels per > > each T1 line or "trunk." > > > > AT&T describes their Digital Carrier System as a "two-point, dedicated, > > high capacity, digital service provided on terrestrial digital facilities > > capable of transmitting 1.544 Mbps. The interface to the customer can be > > either a T1 carrier or a higher order multiplexed facility." > > > > So, what do you think? To send data on this do we need to encapsulate it? > > You betcha, as Leo on TechTalk would say. That's why we have >"encapsulation > > frame-relay" and "encapsulation ppp," among others. > > > > Hope that helps a bit. > > > > Priscilla > > > > > > > > >On Wednesday, February 07, 2001 at 06:36:34 PM, Santosh Koshy wrote: > > > > > > > Pardon my ignorance here > > > > Is there such a thing as just a "T1 Link"... > > > > > > > > of what I understand T1 / Frac T1 resides in the physical layer >Dont u > > > > need something at the Data Link Layer (such as Frame Relay) before you >can > > > > enable IP or IPX at layer 3 > > > > > > > > > > > > _ > > > > FAQ, list archives, and subscription info: > > > http://www.groupstudy.com/list/cisco.html > > > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > Priscilla Oppenheimer > > http://www.priscilla.com > > > > _ > > FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > Priscilla Oppenheimer http://www.priscilla.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: LLC type 1
You are applying the OSI layering model upside down with this question. You should be asking if there is any network-layer protocol that uses the LLC 1 service at the data-link layer. And the answer is yes. IP, Novell, AppleTalk, etc. use LLC 1 if they use LLC at all. (They can all use Ethernet V2; see the discussion on 802.3 for more info on that!) NetBEUI uses LLC type 2. SNA uses LLC type 2. Priscilla At 09:17 AM 2/8/01, Jeremy Dumoit wrote: >Anyone know if there's a LAN type out there that >uses LLC type 1 headers? > > Thanks, > > JD > >__ >Do You Yahoo!? >Get personalized email addresses from Yahoo! Mail - only $35 >a year! http://personal.mail.yahoo.com/ > >_ >FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Priscilla Oppenheimer http://www.priscilla.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: FW: Another 802.3 and Ethernet Question
OK, I have a dumb question. When we talk about "default" encapsulation, are we talking about an actual command? The "encapsulation" command can be entered in Ethernet interface mode, I think. (I'm not near a router now.) The only times I ever change the encapsulation is with the ipx network encap command. Thanks for the interesting conversation. Priscilla At 10:59 AM 2/8/01, Leigh Anne Chisholm wrote: >-Original Message- >From: Leigh Anne Chisholm [mailto:[EMAIL PROTECTED]] >Sent: February 8, 2001 10:17 AM >To: Jim Dixon >Subject: RE: Another 802.3 and Ethernet Question > > >Actually, what I'm saying is that John wanted to know whether or not he >should change the default Ethernet frame type from Ethernet_II to Ethernet >802.3. My question was meant to provoke John to understand what the default >frame type is used for--which really is a pre-requisite to be able to >understand what benefits or drawbacks (if any) changing the default frame >type would bring. > >Why Ethernet_II is the default frame type likely has to do with the fact >that most packets that don't have a pre-determined Ethernet frame type don't >require the functionality that's inherent within 802.3 or provided by the >inclusion of an 802.2 header. It's a frame type that's supported by the >most antique Ethernet equipment since it's the original Ethernet >specification. > >I thought it was also worthy of discussion, because how the default Ethernet >frame type is used by a router differs from IPX in that a router will route >ANY IP Ethernet frame - not just the specified frame type. Comparing IPX >Ethernet frame types to IP frame types is, in my opinion, somewhat akin to >comparing apples and oranges. They're both fruits, but they've got >differences that make each unique and unable to be compared. > >In summary, I've found that a small chunk of my brain has been "Howard >Berkowitz-ized" -- or, in other words, the question that came to mind when >John asked if he should change the default Ethernet frame type was... "What >problem is it that you're trying to solve?" And without understanding when >the default Ethernet frame type came into play, he couldn't assess what the >implications of his change would be. > >If you don't mind, I'd like to cc this message to the Groupstudy group >(minus this paragraph of course). I think it will help clarify in the minds >of some, exactly what it was that I was trying to get at, and why. And I >think you bring up some interesting points for thought... > > > -- Leigh Anne > >-Original Message- >From: Jim Dixon [mailto:[EMAIL PROTECTED]] >Sent: February 8, 2001 9:07 AM >To: Leigh Anne Chisholm >Subject: RE: Another 802.3 and Ethernet Question > > >Now, finally it begins to make sense what you were talking about. It was >confusing us a bit. > > >You are saying why go to all the trouble of having a dam DEFAULT type if >they will either ignore, drop, or just frigging encapsulate the >(@#*$(@#*&&$-ity-blank-ity packet anyway right? > >So your question was not how, or what, by WHY WHY WHY!!! :) > >the answer is > >It Depends on whom you ask as to what the answer will be. > >I suppose it had something to do with 802.3 being the MOST POPULAR with >Novell be prolific earlier on. >Then when they came out with an 802.2 support in what >3.12 < I think > it really showed that they were too proprietary and were >coming around to the unix world's way of thinking. > >So I guess since there was always a mish-mash of protocols in networks being >not-upgraded immediately but over time a decision had to be made on which >protocol to support out of the box and how to support the protocols that >were EXTRA on the network. > >I think maybe they just did what they had to do instead of what needed to >happen. > >So in the end, we have no answers only > >I thought, you thought, and we all thinked thanked and thunk about it till >it thunked itself into the future. > > >Seriously though, thanks for telling us what you had in mind. > >have a good day and give your brain a break, you could stop by the Nasa >homepage and watch NASA TV. Atlantis lifted off yesterday at about 17:30 >Central time (Successfully) I was a little dissapointed because there was >only a one sentence mention on the news about it but they spent 5 minutes >talking about some wreck that just happened and killed some people. >ANyWAY that's a different argument. > >See you > >_ >FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Priscilla Oppenheimer http://www.priscilla.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: not quite sure...
Frame-relay will not retransmit lost packets. It is up to the end stations. X.25 will retransmit. Any protocol that uses lapb will retransmit (at the router) if it does not use lapb or some other error detection/correction mechanism then the end station will be responsible for retransmission -Original Message- From: Leigh Anne Chisholm [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 08, 2001 1:41 PM To: Brant Stevens; Dennis Laganiere; [EMAIL PROTECTED] Subject: RE: not quite sure... Would Router B retransmit if Frame Relay was used as the encapsulation protocol? If so, how would Frame Relay detect the loss of the "packet"? What about X.25--would Router B retransmit? How would X.25 detect the loss? What about HDLC? PPP? -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Brant Stevens Sent: February 8, 2001 9:10 AM To: Dennis Laganiere; [EMAIL PROTECTED] Subject: RE: not quite sure... The question is if Router B and Router C are routing, or if they are bridging... If they are routing, then Router B would re-transmit a packet. If bridging is happening, then Host A would retransmit... Hope this helps... Brant I. Stevens Internetwork Solutions Engineer Thrupoint, Inc. 545 Fifth Avenue, 14th Floor New York, NY. 10017 646-562-6540 -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Dennis Laganiere Sent: Wednesday, February 07, 2001 11:32 PM To: '[EMAIL PROTECTED]' Subject: not quite sure... I've tried to diagram this question to make it clear... Host A is sending to Host D... A line error occurs on the serial link between Router-B and Router-C while passing a packet from Host-A to Host-B Devices - Host A-ROUTER B-ROUTER CHOST D Interfaces - (A1)(B1) (B2)(C1) (C2) (D1) What device would rebroadcast? I think that router-B (port B2) would realize an error had occured, and would resend, so the answer should be port B2, but I've been through all my books and can't find anything to confirm or deny my conclusion... Any thoughts? _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: not quite sure...
I actually think it depends on what encapsulation is running accross the serial link. If you're using HDLC then it's a connection oriented, reliable protocol... meaning if a packet is lost in transit accross the serial link, the router will knw it when it receives a response from the destination router. It'll then resend the frame. If you're using a datagram protocol, like ppp, however, it will rely on the upper layer protocols to detect missing data.. --- Brant Stevens <[EMAIL PROTECTED]> wrote: > The question is if Router B and Router C are > routing, or if they are > bridging... If they are routing, then Router B > would re-transmit a packet. > If bridging is happening, then Host A would > retransmit... > > Hope this helps... > > Brant I. Stevens > Internetwork Solutions Engineer > Thrupoint, Inc. > 545 Fifth Avenue, 14th Floor > New York, NY. 10017 > 646-562-6540 > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of > Dennis Laganiere > Sent: Wednesday, February 07, 2001 11:32 PM > To: '[EMAIL PROTECTED]' > Subject: not quite sure... > > > I've tried to diagram this question to make it > clear... > > Host A is sending to Host D... > > A line error occurs on the serial link between > Router-B and Router-C while > passing a packet from Host-A to Host-B > > Devices - Host A-ROUTER B-ROUTER > CHOST D > Interfaces - (A1)(B1) (B2)(C1) > (C2) (D1) > > What device would rebroadcast? > > I think that router-B (port B2) would realize an > error had occured, and > would resend, so the answer should be port B2, but > I've been through all my > books and can't find anything to confirm or deny my > conclusion... > > Any thoughts? > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to > [EMAIL PROTECTED] > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Cisco CCNP books question
I passed my CCDA today. Thanks so much for all your help and support. Does anyone know what is the difference between the CCNP Certification Library and CCNP Preparation Library? Which is better to use for studying the CCNP exams? CCNP Certification Library: CCNP Routing Exam Certification Guide CCNP Switching Exam Certification Guide CCNP Remote Access Exam Certification Guide CCNP Support Exam Certification Guide CCNP Preparation Library: Building Scalable Cisco Networks Building Cisco Multilayer Switched Networks Building Cisco Remote Access Networks Cisco Internetwork Troubleshooting Any help would be greatly appreciated. Regards, Hunt Lee IP Solution Anaylst Cable and Wireless (Sydney) _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: various catalyst5505 syntax question..help as much as you can!
Your absolute best resource is "Cisco LAN Switching" by Clark and Hamilton, Cisco Press ISBN 1-57870-094-9 Chapter 7. Run to your local book store and buy it. Does your boss have pointy hair? 1) mtu is maximum transmission unit. 1500 is the default for ethernet. SAID, Security Association Identifier. Cisco adds 100,000 to the VLAN number to create the SAID value. VLAN 1 = 11 You have three active ethernet VLANs The FDDI and Token Ring VLANs are defaults and most likely not used. 2) sc0 1 means that the "virtual PC" that holds the IP stack is in VLAN 1 (which is default). sc0 vlan#, ip address, subnet mask, broadcast address 3) spantree priority default is 32768. 16384 may make this switch the root switch (for the VLAN in question. If no VLAN is specified then VLAN 1.) Do a "show spantree #" Where # is each VLAN. if you see "Designated Root Cost" at 0 then that switch is the root for that VLAN. 4 & 5) Don't have time to look it up. They did some tuning with the values. You'll have to look at all the switches to figure out what was intended. Create a drawing of the physical network. Map each VLAN individually unless all the values on all the VLANs are the same. 6) "off negotiate" means that a trunk can never be established on this link. 7) MLS only works if you have a Supervisor III E-2 or above with NFFC (open to correction on this one) and you have an internal routing function RSM card or RSFC or have an external router with MLS configured. If you have it working, someone went through the effort to create it. Don't change it until you know what was intended and why it should be changed. > -Original Message- > From: Richard spalding [mailto:[EMAIL PROTECTED]] > Sent: Thursday, February 08, 2001 12:11 PM > To: [EMAIL PROTECTED] > Subject: various catalyst5505 syntax question..help as much > as you can! > > > Hi...Dear All, > > Recently, we just took over the administrator of catalyst > 5505 switches, my > boss want me give me a full report on this switches in two > days time. But I > don't understand some of the syntax. Pls help as much as you > can even you > may only one of the question , welcome to contribute.. > > 1) What is mean by the following, how many vlan are there?? > what is mean by > mtu 1500 said 11 ? > > #vtp > set vtp domain TOTO > set vlan 1 name default type ethernet mtu 1500 said 11 > state active > set vlan 2 name VLAN0002 type ethernet mtu 1500 said 12 > state active > set vlan 3 name VLAN0003 type ethernet mtu 1500 said 13 > state active > set vlan 1002 name fddi-default type fddi mtu 1500 said > 101002 state active > set vlan 1004 name fddinet-default type fddinet mtu 1500 said > 101004 state > activ > e stp ieee > set vlan 1005 name trnet-default type trbrf mtu 1500 said > 101005 state > active st > p ibm > set vlan 1003 name token-ring-default type trcrf mtu 1500 > said 101003 state > acti > ve mode srb aremaxhop 0 stemaxhop 0 backupcrf off > ! > > > 2)Which interface is sc0 refer to? I know this represent IP > of the switches, > but any secial meaning of sc0 1 ??? > set interface sc0 1 50.200.45.252/255.255.255.0 50.200.45.255 > > 3)why vlan1,2,3 setting is different from vlan1003,1005?? > what is mean by > spantree priority 16384?? why vlan1002,1004 not specify > here? not in use?? > > #spantree > #vlan 1 > set spantree priority 16384 1 > #vlan 2 > set spantree priority 16384 2 > #vlan 3 > set spantree priority 16384 3 > #vlan 1003 > set spantree fwddelay 151003 > set spantree maxage 201003 > #vlan 1005 > set spantree fwddelay 151005 > set spantree maxage 201005set spantree portcost1/1 3006 > > 4)What is the different between portcost and portvlancost? > why the value > different?? > > set spantree portcost1/1 3006 > set spantree portcost1/2 3019 > set spantree portvlancost 1/1 cost 3005 > set spantree portvlancost 1/2 cost 3018 > > 5)What is mean by portpri? cost 3004 4-8,11-15 what is mean?? > #module 2 : 1-port Route Switch > set spantree portcost2/1 3005 > set spantree portpri 2/1 15 > set spantree portvlancost 2/1 cost 3004 4-8,11-15 > > 6)what is mean by trunk 3/5 off negotiate??? > set trunk 3/5 off negotiate 1-1005 > set trunk 3/6 off negotiate 1-1005 > > 7)Generally in what kind of situation , we should disable the > MLS in the > catalyst switch? > > > __ > ___ > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Token Ring White Paper
Here's a link to a white paper on Token Ring. I haven't had a chance to read it yet so I can't vouch for it's depth of knowledge. Jim ""Hal White"" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Several people have asked me where I got the Token Ring white paper that I > used to study for the CCIE written. I got the paper from > www.certificationzone.com when it was free for download a few months ago. > Unfortunately, it is not free this month. If you have a membership you > should definitely read this white paper. If you are not a member then go to > their site and decide if it is worth spending the money. I was not a > member, but others on the list have said it was a good investment. > Caslow's book and the exam cram both have chapters about bridging and token > ring that are also helpful although they do not explain it as well and as > clearly as the white paper on certification zone. > > There is another document about Token Ring that is also helpful which can be > found at http://www.groupstudy.com/notes/notepages/rif2.html > > I hope this helps everyone who is preparing for the CCIE Written. > > Hal > _ > Get your FREE download of MSN Explorer at http://explorer.msn.com > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Token Ring White Paper
Helps if you add the link :-) http://www.ccprep.com/resources/news/archives/Token_Ring2.pdf Jim ""James Haynes"" <[EMAIL PROTECTED]> wrote in message 95v464$86t$[EMAIL PROTECTED]">news:95v464$86t$[EMAIL PROTECTED]... > Here's a link to a white paper on Token Ring. I haven't had a chance to read > it yet so I can't vouch for it's depth of knowledge. > > Jim > > > ""Hal White"" <[EMAIL PROTECTED]> wrote in message > [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > > Several people have asked me where I got the Token Ring white paper that I > > used to study for the CCIE written. I got the paper from > > www.certificationzone.com when it was free for download a few months ago. > > Unfortunately, it is not free this month. If you have a membership you > > should definitely read this white paper. If you are not a member then go > to > > their site and decide if it is worth spending the money. I was not a > > member, but others on the list have said it was a good investment. > > Caslow's book and the exam cram both have chapters about bridging and > token > > ring that are also helpful although they do not explain it as well and as > > clearly as the white paper on certification zone. > > > > There is another document about Token Ring that is also helpful which can > be > > found at http://www.groupstudy.com/notes/notepages/rif2.html > > > > I hope this helps everyone who is preparing for the CCIE Written. > > > > Hal > > _ > > Get your FREE download of MSN Explorer at http://explorer.msn.com > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: FW: Another 802.3 and Ethernet Question
I am sitting on a 2501 and the encap command can only be used when configuring ipx subcommands. (running 11.3) HTH Ryan RouterC(config-if)#? Interface configuration commands: access-expression Build a bridge boolean access expression appletalk Appletalk interface subcommands arp Set arp type (arpa, probe, snap) or timeout backup Modify dial-backup parameters bandwidth Set bandwidth informational parameter bridge-groupTransparent bridging interface parameters carrier-delay Specify delay for interface transitions cdp CDP interface subcommands cmnsOSI CMNS custom-queue-list Assign a custom queue list to an interface decnet Interface DECnet config commands default Set a command to its defaults delay Specify interface throughput delay description Interface specific description exitExit from interface configuration mode fair-queue Enable Fair Queuing on an Interface helpDescription of the interactive help system hold-queue Set hold queue depth ip Interface Internet Protocol config commands ipx Novell/IPX interface subcommands keepalive Enable keepalive --More-- -Original Message- From: Priscilla Oppenheimer [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 08, 2001 1:57 PM To: [EMAIL PROTECTED] Subject: Re: FW: Another 802.3 and Ethernet Question OK, I have a dumb question. When we talk about "default" encapsulation, are we talking about an actual command? The "encapsulation" command can be entered in Ethernet interface mode, I think. (I'm not near a router now.) The only times I ever change the encapsulation is with the ipx network encap command. Thanks for the interesting conversation. Priscilla At 10:59 AM 2/8/01, Leigh Anne Chisholm wrote: >-Original Message- >From: Leigh Anne Chisholm [mailto:[EMAIL PROTECTED]] >Sent: February 8, 2001 10:17 AM >To: Jim Dixon >Subject: RE: Another 802.3 and Ethernet Question > > >Actually, what I'm saying is that John wanted to know whether or not he >should change the default Ethernet frame type from Ethernet_II to Ethernet >802.3. My question was meant to provoke John to understand what the default >frame type is used for--which really is a pre-requisite to be able to >understand what benefits or drawbacks (if any) changing the default frame >type would bring. > >Why Ethernet_II is the default frame type likely has to do with the fact >that most packets that don't have a pre-determined Ethernet frame type don't >require the functionality that's inherent within 802.3 or provided by the >inclusion of an 802.2 header. It's a frame type that's supported by the >most antique Ethernet equipment since it's the original Ethernet >specification. > >I thought it was also worthy of discussion, because how the default Ethernet >frame type is used by a router differs from IPX in that a router will route >ANY IP Ethernet frame - not just the specified frame type. Comparing IPX >Ethernet frame types to IP frame types is, in my opinion, somewhat akin to >comparing apples and oranges. They're both fruits, but they've got >differences that make each unique and unable to be compared. > >In summary, I've found that a small chunk of my brain has been "Howard >Berkowitz-ized" -- or, in other words, the question that came to mind when >John asked if he should change the default Ethernet frame type was... "What >problem is it that you're trying to solve?" And without understanding when >the default Ethernet frame type came into play, he couldn't assess what the >implications of his change would be. > >If you don't mind, I'd like to cc this message to the Groupstudy group >(minus this paragraph of course). I think it will help clarify in the minds >of some, exactly what it was that I was trying to get at, and why. And I >think you bring up some interesting points for thought... > > > -- Leigh Anne > >-Original Message- >From: Jim Dixon [mailto:[EMAIL PROTECTED]] >Sent: February 8, 2001 9:07 AM >To: Leigh Anne Chisholm >Subject: RE: Another 802.3 and Ethernet Question > > >Now, finally it begins to make sense what you were talking about. It was >confusing us a bit. > > >You are saying why go to all the trouble of having a dam DEFAULT type if >they will either ignore, drop, or just frigging encapsulate the >(@#*$(@#*&&$-ity-blank-ity packet anyway right? > >So your question was not how, or what, by WHY WHY WHY!!! :) > >the answer is > >It Depends on whom you ask as to what the answer will be. > >I suppose it had something to do with 802.3 being the MOST POPULAR with >Novell be prolific earlier on. >Then when they came out with an 802.2 support in what >3.12 < I think > it really showed that they were too proprietary and were >coming around to the unix world's way of th
passed the CCNP routing!
I just passed the CCNP routing exam with a score of 908! Thank you everyone for the help. :) _ Get your FREE download of MSN Explorer at http://explorer.msn.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: not quite sure...
HDLC will not retransmit as there is only error detection in HDLC, but no error correction. This is the same with Frame-relay. Frame-relay, and HDLC will detect and discard errored frames but will not retransmit those frames. They depend on upper layers (like TCP for TCP/IP) to recognize there is a missing packet and correct that error. The end station will respond by acking the next packet it recieves with the appriopriate (lower numbered) sequence number. The originating station will get this ack (with the lower sequence number) see that the end station is requesting a packet out of sequence and the originating station will begin it's next transmission with the data from that particular sequence number. -Original Message- From: Jeremy Dumoit [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 08, 2001 2:19 PM To: Brant Stevens; Dennis Laganiere; [EMAIL PROTECTED] Subject: RE: not quite sure... I actually think it depends on what encapsulation is running accross the serial link. If you're using HDLC then it's a connection oriented, reliable protocol... meaning if a packet is lost in transit accross the serial link, the router will knw it when it receives a response from the destination router. It'll then resend the frame. If you're using a datagram protocol, like ppp, however, it will rely on the upper layer protocols to detect missing data.. --- Brant Stevens <[EMAIL PROTECTED]> wrote: > The question is if Router B and Router C are > routing, or if they are > bridging... If they are routing, then Router B > would re-transmit a packet. > If bridging is happening, then Host A would > retransmit... > > Hope this helps... > > Brant I. Stevens > Internetwork Solutions Engineer > Thrupoint, Inc. > 545 Fifth Avenue, 14th Floor > New York, NY. 10017 > 646-562-6540 > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of > Dennis Laganiere > Sent: Wednesday, February 07, 2001 11:32 PM > To: '[EMAIL PROTECTED]' > Subject: not quite sure... > > > I've tried to diagram this question to make it > clear... > > Host A is sending to Host D... > > A line error occurs on the serial link between > Router-B and Router-C while > passing a packet from Host-A to Host-B > > Devices - Host A-ROUTER B-ROUTER > CHOST D > Interfaces - (A1)(B1) (B2)(C1) > (C2) (D1) > > What device would rebroadcast? > > I think that router-B (port B2) would realize an > error had occured, and > would resend, so the answer should be port B2, but > I've been through all my > books and can't find anything to confirm or deny my > conclusion... > > Any thoughts? > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to > [EMAIL PROTECTED] > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: not quite sure...
HDLC will not retransmit as there is only error detection in HDLC, but no error correction. Original Message- From: Jeremy Dumoit [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 08, 2001 2:19 PM To: Brant Stevens; Dennis Laganiere; [EMAIL PROTECTED] Subject: RE: not quite sure... I actually think it depends on what encapsulation is running accross the serial link. If you're using HDLC then it's a connection oriented, reliable protocol... meaning if a packet is lost in transit accross the serial link, the router will knw it when it receives a response from the destination router. It'll then resend the frame. If you're using a datagram protocol, like ppp, however, it will rely on the upper layer protocols to detect missing data.. --- Brant Stevens <[EMAIL PROTECTED]> wrote: > The question is if Router B and Router C are > routing, or if they are > bridging... If they are routing, then Router B > would re-transmit a packet. > If bridging is happening, then Host A would > retransmit... > > Hope this helps... > > Brant I. Stevens > Internetwork Solutions Engineer > Thrupoint, Inc. > 545 Fifth Avenue, 14th Floor > New York, NY. 10017 > 646-562-6540 > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of > Dennis Laganiere > Sent: Wednesday, February 07, 2001 11:32 PM > To: '[EMAIL PROTECTED]' > Subject: not quite sure... > > > I've tried to diagram this question to make it > clear... > > Host A is sending to Host D... > > A line error occurs on the serial link between > Router-B and Router-C while > passing a packet from Host-A to Host-B > > Devices - Host A-ROUTER B-ROUTER > CHOST D > Interfaces - (A1)(B1) (B2)(C1) > (C2) (D1) > > What device would rebroadcast? > > I think that router-B (port B2) would realize an > error had occured, and > would resend, so the answer should be port B2, but > I've been through all my > books and can't find anything to confirm or deny my > conclusion... > > Any thoughts? > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to > [EMAIL PROTECTED] > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Token Ring White Paper
That is one the one that I used. It has been so long since I printed it out that I forgot where it came from. I am not sure if it is the same one as the one on certificationzone.com or not, but it is the one I used and it is free. I apologize if I gave the wrong site but it has been several months since I printed the document and it is a pdf so there is no URL on the bottom. >From: Yonkerbonk <[EMAIL PROTECTED]> >To: Hal White <[EMAIL PROTECTED]>, [EMAIL PROTECTED] >Subject: Re: Token Ring White Paper >Date: Thu, 8 Feb 2001 11:45:15 -0800 (PST) > >I originall found it on ccprep.com and it's still >there. So check that out under Resources. > >Michael > >--- Hal White <[EMAIL PROTECTED]> wrote: > > Several people have asked me where I got the Token > > Ring white paper that I > > used to study for the CCIE written. I got the paper > > from > > www.certificationzone.com when it was free for > > download a few months ago. > > Unfortunately, it is not free this month. If you > > have a membership you > > should definitely read this white paper. If you are > > not a member then go to > > their site and decide if it is worth spending the > > money. I was not a > > member, but others on the list have said it was a > > good investment. > > Caslow's book and the exam cram both have chapters > > about bridging and token > > ring that are also helpful although they do not > > explain it as well and as > > clearly as the white paper on certification zone. > > > > There is another document about Token Ring that is > > also helpful which can be > > found at > > http://www.groupstudy.com/notes/notepages/rif2.html > > > > I hope this helps everyone who is preparing for the > > CCIE Written. > > > > Hal > > >_ > > Get your FREE download of MSN Explorer at > > http://explorer.msn.com > > > > _ > > FAQ, list archives, and subscription info: > > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to >[EMAIL PROTECTED] > > >__ >Do You Yahoo!? >Get personalized email addresses from Yahoo! Mail - only $35 >a year! http://personal.mail.yahoo.com/ _ Get your FREE download of MSN Explorer at http://explorer.msn.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Load Balancing Advice
[MCI][Cat5K w/RSM][UUNet] | Internal LAN I have a client with two Internet routers running BGP multihomed to the ISPs, MCI and UUNET. Inbound traffic to their AS is pretty much balanced between MCI and UUNET. On the inside however, where MCI and UUNET connect into a Cat5K, the MCI is the HSRP active router and thus handles most of the outbound traffic. The client wants to load balance outbound traffic between the two. So when the client recently added an RSM to the Cat5K, I proposed to remove HSRP totally and run OSPF so that the RSM sees two equal-cost default routes to the routers. My question is, can you run default-information originate on two routers? And would that work in this scenario? Thanks. Michael __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CCIE Recertification UPDATE (Networkers not needed anymore)
That means we have no more excuses to tell our managers we need to go to New Orleans or Vegas. :) Michael --- Brad Ellis <[EMAIL PROTECTED]> wrote: > Thanks to Mr. Zudal, CCIEs are no longered required > to attend Networkers to > recert for their CCIE status. > > -Brad Ellis > CCIE#5796 > Cisco Hardware: www.optsys.net > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] > Sent: Thursday, February 08, 2001 12:19 PM > To: szudal@ > Subject: CCIE Recertification Changes > > > Dear CCIE, > > In 1997, we introduced the CCIE recertification > program. At that time > there were two requirements: attend 5 CCIE-level > sessions at Networkers > and successfully complete a CCIE recertification > exam every two years. > > In response to your feedback, we have decided to > drop the Networkers > session requirement for recertification. We will > still have CCIE-level > sessions at selected Networkers, however effective > February 1, 2001, > attendance will no longer be mandatory for > recertification. > > All CCIE recertification deadlines will remain the > same. Effective > February 1, 2001, a CCIE will be required to > successfully complete one > CCIE recertification exam every two years in > accordance with your current > deadline. > > As part of this program update, we will no longer be > issuing > recertification certificates. Exam results are > downloaded automatically > into the CCIE database. When the CCIE team receives > your successful exam > result, an email notification will be sent to you > verifying your > recertification status. > > If you have any questions, please write to > [EMAIL PROTECTED] Good Luck > with your CCIE recertification! > > Regards, > > CCIE Team > > > > > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Cisco CCNP books question
Just buy them both. You'll need them. At 06:36 AM 2/9/2001 +1100, Hunt Lee wrote: >I passed my CCDA today. Thanks so much for all your help and support. > >Does anyone know what is the difference between the CCNP Certification >Library and CCNP Preparation Library? Which is better to use for >studying the CCNP exams? > >CCNP Certification Library: > >CCNP Routing Exam Certification Guide >CCNP Switching Exam Certification Guide >CCNP Remote Access Exam Certification Guide >CCNP Support Exam Certification Guide > >CCNP Preparation Library: > >Building Scalable Cisco Networks >Building Cisco Multilayer Switched Networks >Building Cisco Remote Access Networks >Cisco Internetwork Troubleshooting > >Any help would be greatly appreciated. > >Regards, >Hunt Lee >IP Solution Anaylst >Cable and Wireless (Sydney) > >_ >FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Token Ring White Paper
Sorry to use this thread for this, but when I reply to the group my message gets posted. When I try to post a new message it looks as though it was sent but I don't see it on the board. I've tried this from work and from home a neither seems to work. Any ideas? Jim ""Hal White"" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > That is one the one that I used. It has been so long since I printed it out > that I forgot where it came from. I am not sure if it is the same one as > the one on certificationzone.com or not, but it is the one I used and it is > free. I apologize if I gave the wrong site but it has been several months > since I printed the document and it is a pdf so there is no URL on the > bottom. > > > > >From: Yonkerbonk <[EMAIL PROTECTED]> > >To: Hal White <[EMAIL PROTECTED]>, [EMAIL PROTECTED] > >Subject: Re: Token Ring White Paper > >Date: Thu, 8 Feb 2001 11:45:15 -0800 (PST) > > > >I originall found it on ccprep.com and it's still > >there. So check that out under Resources. > > > >Michael > > > >--- Hal White <[EMAIL PROTECTED]> wrote: > > > Several people have asked me where I got the Token > > > Ring white paper that I > > > used to study for the CCIE written. I got the paper > > > from > > > www.certificationzone.com when it was free for > > > download a few months ago. > > > Unfortunately, it is not free this month. If you > > > have a membership you > > > should definitely read this white paper. If you are > > > not a member then go to > > > their site and decide if it is worth spending the > > > money. I was not a > > > member, but others on the list have said it was a > > > good investment. > > > Caslow's book and the exam cram both have chapters > > > about bridging and token > > > ring that are also helpful although they do not > > > explain it as well and as > > > clearly as the white paper on certification zone. > > > > > > There is another document about Token Ring that is > > > also helpful which can be > > > found at > > > http://www.groupstudy.com/notes/notepages/rif2.html > > > > > > I hope this helps everyone who is preparing for the > > > CCIE Written. > > > > > > Hal > > > > >_ > > > Get your FREE download of MSN Explorer at > > > http://explorer.msn.com > > > > > > _ > > > FAQ, list archives, and subscription info: > > > http://www.groupstudy.com/list/cisco.html > > > Report misconduct and Nondisclosure violations to > >[EMAIL PROTECTED] > > > > > >__ > >Do You Yahoo!? > >Get personalized email addresses from Yahoo! Mail - only $35 > >a year! http://personal.mail.yahoo.com/ > > _ > Get your FREE download of MSN Explorer at http://explorer.msn.com > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CCIE Recertification UPDATE (Networkers not needed anymore)
Who said the managers would know? Charles :) "Yonkerbonk" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > That means we have no more excuses to tell our > managers we need to go to New Orleans or Vegas. :) > > Michael > > --- Brad Ellis <[EMAIL PROTECTED]> wrote: > > Thanks to Mr. Zudal, CCIEs are no longered required > > to attend Networkers to > > recert for their CCIE status. > > > > -Brad Ellis > > CCIE#5796 > > Cisco Hardware: www.optsys.net > > > > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] > > Sent: Thursday, February 08, 2001 12:19 PM > > To: szudal@ > > Subject: CCIE Recertification Changes > > > > > > Dear CCIE, > > > > In 1997, we introduced the CCIE recertification > > program. At that time > > there were two requirements: attend 5 CCIE-level > > sessions at Networkers > > and successfully complete a CCIE recertification > > exam every two years. > > > > In response to your feedback, we have decided to > > drop the Networkers > > session requirement for recertification. We will > > still have CCIE-level > > sessions at selected Networkers, however effective > > February 1, 2001, > > attendance will no longer be mandatory for > > recertification. > > > > All CCIE recertification deadlines will remain the > > same. Effective > > February 1, 2001, a CCIE will be required to > > successfully complete one > > CCIE recertification exam every two years in > > accordance with your current > > deadline. > > > > As part of this program update, we will no longer be > > issuing > > recertification certificates. Exam results are > > downloaded automatically > > into the CCIE database. When the CCIE team receives > > your successful exam > > result, an email notification will be sent to you > > verifying your > > recertification status. > > > > If you have any questions, please write to > > [EMAIL PROTECTED] Good Luck > > with your CCIE recertification! > > > > Regards, > > > > CCIE Team > > > > > > > > > > > > _ > > FAQ, list archives, and subscription info: > > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to > [EMAIL PROTECTED] > > > __ > Do You Yahoo!? > Get personalized email addresses from Yahoo! Mail - only $35 > a year! http://personal.mail.yahoo.com/ > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: CID beta results
Any word on this? I think I didn't pass, but I want to know for sure. ""Steven Crawford"" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > When I took my test, the final screen said 8 weeks, so we should have our > results this week. Galton does not have them yet, but they should be up by > Friday if they are going to be 8 weeks. > _ > Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Adding a Catalyst 6009 to existing network
You will have to set the VTP domain for the new switch to receive VLAN info. set vtp domain "domain_name" You should also set the mode : server, client, transparent set vtp mode server or set vtp mode client or set vtp mode transparent Make sure you set them to something other than server. This will ensure that the current VLAN info won't get over written by the new switch. Good luck! Timothy J. Hornbeck Technical Analyst III Infrastructure Implementation Services - Cleveland National City Bank - The quality of a network is not based on complexity, but on its simplicity and adherence to solid fundamentals. -Original Message- From: Washington Rico [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 08, 2001 1:07 AM To: [EMAIL PROTECTED] Subject: Adding a Catalyst 6009 to existing network Could someone tell me the procedure for adding a Catalsyt 6009 to my existing network. I understand that the connections must be trunked..I have no problem there. But when I connect the two trunks from my core Catalsyt 6500 to the access switch Catalsyt 6009, will the 6009 start receiving vlan information automatically? I do not want it to be a server of my current vtp domain. How do ensure that this will not happen?? Regards, Eric _ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
OT: VPN Client 2.5.2a
Has anyone found a solution to a problem regarding the vpn client not being able to start the ipsec service. We have a Cisco (altiga) 3015 running 2.5.2a clients. Some clients install on 9x machines, others do not. The ones that fail always result in the "unable to start the ipsec service...". Looking at ciscos website produces a solution of uninstalling rebooting, rebooting again, and then reinstalling. This has been attempted (per the website instructions) and none of the machines are able to connect, all result in the error of "unable to start ipsec service..." Just hoping someone else has run into this and may be able to shed some like. Thanks for any help! _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Load Balancing Advice
>[MCI][Cat5K w/RSM][UUNet] >| > Internal LAN > > >I have a client with two Internet routers running >BGP multihomed to the ISPs, MCI and UUNET. Inbound >traffic to their AS is pretty much balanced between >MCI and UUNET. On the inside however, where MCI and >UUNET connect into a Cat5K, the MCI is the HSRP active >router and thus handles most of the outbound traffic. >The client wants to load balance outbound traffic >between the two. >So when the client recently added an RSM to the >Cat5K, I proposed to remove HSRP totally and run OSPF >so that the RSM sees two equal-cost default routes to >the routers. >My question is, can you run default-information >originate on two routers? And would that work in this >scenario? It's a good approach, at least for load-balancing your outgoing traffic. To have any chance of affecting incoming traffic, you need to play BGP games. Since you speak of their AS, I assume there is BGP. Default-information originate works quite well. If the Cat5K is the only layer 3 aware hop, the next caveat may not be that important, but if it feeds additional router hops, be sure that the default originated is of OSPF external type 1, not type 2, so internal reachability is considered in the interest of load balancing. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
CCIE Study Partner in S. E. Michigan
I'm looking for study partner for CCIE written/lab in South Eastern Michigan. (Must have CCNP/CCDP or equal, I'm not looking for a student, I'm looking for a peer so we can help each other) Looking to take: CCIE Written March 2001 CCIE LabAug 2001 Please email if interested - [EMAIL PROTECTED] = Paul M. Immo CCDP CCNP MCSE Imagination is more important than knowledge Albert Einstein __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Show port results - Please identify
What does the speed of 400 represent in this example? Is it the speed of the route switch? I have only seen 10 and 100. Thanks PortNameStatus Vlanlevel Duplex Speed Type 3/1 rsm2connected trunk normal half400 route switch _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Token Ring White Paper
I originall found it on ccprep.com and it's still there. So check that out under Resources. Michael --- Hal White <[EMAIL PROTECTED]> wrote: > Several people have asked me where I got the Token > Ring white paper that I > used to study for the CCIE written. I got the paper > from > www.certificationzone.com when it was free for > download a few months ago. > Unfortunately, it is not free this month. If you > have a membership you > should definitely read this white paper. If you are > not a member then go to > their site and decide if it is worth spending the > money. I was not a > member, but others on the list have said it was a > good investment. > Caslow's book and the exam cram both have chapters > about bridging and token > ring that are also helpful although they do not > explain it as well and as > clearly as the white paper on certification zone. > > There is another document about Token Ring that is > also helpful which can be > found at > http://www.groupstudy.com/notes/notepages/rif2.html > > I hope this helps everyone who is preparing for the > CCIE Written. > > Hal > _ > Get your FREE download of MSN Explorer at > http://explorer.msn.com > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
S0/0 up up but can't ping!
Hey guys, I have network running OSPF. I got a call from the our NOC that they are unable to get to the site except from the directly connected AGG router. I logged into the router(c2621)from the connected router and OSPF is working ok, however, I am unable to ping the router from anywhere except from the directly connected router. >From my core router, when I do a "show ip route ospf X.X.X.X" the router learn the route via OSPF coming from the correct edge router but I am unable to ping it from the core. I went into the edge and realize that I was unable to pin the S0/0 from withen the router, even though the router's S0/0 is UP UP and receiving OSPF routes. I cleared the OSPF process, Cleared the redistribution, rebooted the router, etc I am at a losswhy wouldn't I be able to ping the S0/0 if it's up up. I can ping other int. thanks Karl p.s. sorry for any spelling error...in a hurry! _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
memory question
Could someone please point me to a paper or web page that talks about how memory is used on Cisco routers? Looking for an explanation on DRAM, Flash, I/O memory, etc. Thanks, Jeff _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Load Balancing Advice
Running OSPF should work fine. That is how we do a majority of our load balancing. Only thing to make sure of is that if the circuit goes down your default route goes away so you don't keep advertising it to the Cat5K. - Original Message - From: "Yonkerbonk" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]> Sent: Thursday, February 08, 2001 3:43 PM Subject: Load Balancing Advice > [MCI][Cat5K w/RSM][UUNet] >| > Internal LAN > > >I have a client with two Internet routers running > BGP multihomed to the ISPs, MCI and UUNET. Inbound > traffic to their AS is pretty much balanced between > MCI and UUNET. On the inside however, where MCI and > UUNET connect into a Cat5K, the MCI is the HSRP active > router and thus handles most of the outbound traffic. > The client wants to load balance outbound traffic > between the two. >So when the client recently added an RSM to the > Cat5K, I proposed to remove HSRP totally and run OSPF > so that the RSM sees two equal-cost default routes to > the routers. >My question is, can you run default-information > originate on two routers? And would that work in this > scenario? >Thanks. > >Michael _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: not quite sure...
Believe me, I'm crying with you, not at you. Somehow, perhaps in some old education slides, the idea that routers routinely retransmit has reached the level of an urban legend. X.25 switches do transmit, but they are NOT routers. Why do I get so emphatic about this? Because as long as people leap into router based retransmission, they still haven't internalized some the fundamental design approaches of the TCP/IP protocol suite. From Brian Carpenter's recent summary, RFC 2775: >2.1 The end-to-end argument > >This is an argument first described in [Saltzer] and reviewed in [RFC >1958], from which an extended quotation follows: > > "The basic argument is that, as a first principle, certain > required end-to-end functions can only be performed correctly by > the end-systems themselves. A specific case is that any network, > however carefully designed, will be subject to failures of > transmission at some statistically determined rate. The best way > to cope with this is to accept it, and give responsibility for the > integrity of communication to the end systems. Another specific > case is end-to-end security. > > "To quote from [Saltzer], 'The function in question can completely > and correctly be implemented only with the knowledge and help of > the application standing at the endpoints of the communication > system. Therefore, providing that questioned function as a > feature of the communication system itself is not possible. > (Sometimes an incomplete version of the function provided by the > communication system may be useful as a performance enhancement.)' > > "This principle has important consequences if we require > applications to survive partial network failures. An end-to-end > protocol design should not rely on the maintenance of state (i.e. > information about the state of the end-to-end communication) > inside the network. Such state should be maintained only in the > endpoints, in such a way that the state can only be destroyed when > the endpoint itself breaks (known as fate-sharing). An immediate > consequence of this is that datagrams are better than classical > virtual circuits. The network's job is to transmit datagrams as > efficiently and flexibly as possible. Everything else should be > done at the fringes." > >Thus this first aspect of end-to-endness limits what the network is >expected to do, and clarifies what the end-system is expected to do. >The end-to-end argument underlies the rest of this document. > >2.2 End-to-end performance > >Another aspect, in which the behaviour of the network and that of the >end-systems interact in a complex way, is performance, in a >generalised sense. This is not a primary focus of the present >document, but it is mentioned briefly since it is often referred to >when discussing end-to-end issues. > >Much work has been done over many years to improve and optimise the >performance of TCP. Interestingly, this has led to comparatively >minor changes to TCP itself; [STD 7] is still valid apart from minor >additions [RFC 1323, RFC 2581, RFC 2018]. However a great deal of >knowledge about good practice in TCP implementations has built up, >and the queuing and discard mechanisms in routers have been fine- >tuned to improve system performance in congested conditions. > >Unfortunately all this experience in TCP performance does not help >with transport protocols that do not exhibit TCP-like response to >congestion [RFC 2309]. Also, the requirement for specified quality of >service for different applications and/or customers has led to much >new development, especially the Integrated Services [RFC 1633, RFC >2210] and Differentiated Services [RFC 2475] models. At the same time >new transport-related protocols have appeared [RFC 1889, RFC 2326] or >are in discussion in the IETF. It should also be noted that since the >speed of light is not set by an IETF standard, our current notions of >end-to-end performance will be largely irrelevant to interplanetary >networking. In other words, fundamental assumptions included: IP is not an error-correcting service. It is, at best, error detecting, and most error detecting is the responsibilility of the data link service. TCP was intended to be responsible for error correction. UDP was intended to be error detecting only. _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: not quite sure...
Frame relay has no means for packet loss detection, so a higher layer protocol (probably TCP) would have to request retransmission of the data. This would occur between hosts rather than the router. X.25 and HDLC on the other hand are both reliable protocols... they would recognize a packet loss and retransmit from the routers. However, PPP, like frame, is just a datagram service... the hosts would have to work it out at higher layers again. --- Leigh Anne Chisholm <[EMAIL PROTECTED]> wrote: > Would Router B retransmit if Frame Relay was used as > the encapsulation > protocol? If so, how would Frame Relay detect the > loss of the "packet"? > What about X.25--would Router B retransmit? How > would X.25 detect the loss? > What about HDLC? PPP? > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of > Brant Stevens > Sent: February 8, 2001 9:10 AM > To: Dennis Laganiere; [EMAIL PROTECTED] > Subject: RE: not quite sure... > > > The question is if Router B and Router C are > routing, or if they are > bridging... If they are routing, then Router B > would re-transmit a packet. > If bridging is happening, then Host A would > retransmit... > > Hope this helps... > > Brant I. Stevens > Internetwork Solutions Engineer > Thrupoint, Inc. > 545 Fifth Avenue, 14th Floor > New York, NY. 10017 > 646-562-6540 > > -Original Message- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of > Dennis Laganiere > Sent: Wednesday, February 07, 2001 11:32 PM > To: '[EMAIL PROTECTED]' > Subject: not quite sure... > > > I've tried to diagram this question to make it > clear... > > Host A is sending to Host D... > > A line error occurs on the serial link between > Router-B and Router-C while > passing a packet from Host-A to Host-B > > Devices - Host A-ROUTER B-ROUTER > CHOST D > Interfaces - (A1)(B1) (B2)(C1) > (C2) (D1) > > What device would rebroadcast? > > I think that router-B (port B2) would realize an > error had occured, and > would resend, so the answer should be port B2, but > I've been through all my > books and can't find anything to confirm or deny my > conclusion... > > Any thoughts? > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to > [EMAIL PROTECTED] > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to > [EMAIL PROTECTED] > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
2620 and load balancing
If I have two T1'S from different ISP'S and connect them to my 2620, How do I load balance the traffic.Am I thinking of implementing BGP?. At the moment I am just using 1 ISP and keeping the other in standby.I would like to use both together and load balance my traffic. We tried it with both TI'S wortking to gether but packets were being loss, latency decreasing and all sorts of other funky things such as some users could get to some sites and others couldnt. Also will it make a differnce if one ISP requires us to use NAT . Mo Durrani IS&T WYSE\EDS phone:408-473 1246 [EMAIL PROTECTED] [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
PIX 520 running 4.4(6)
Hi guys, I'm running a pix 520 with a non-stateful failover. The image is 4.4(6). I've been receiving a lot of ftp disconnect/failures from the ftp-server that are sitting in the dmz, behind the pix520. Has anyone experienced ftp problems on pix520 running 4.4(6)? Should I consider upgrading to 5.1? I have 2megs of flash and 32megs of ram. Any input is appreciated. -Frank _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Show port results - Please identify
Cisco LAN Switching page 463 400 is the combined speed of the two DMA connections between the RSM and the Cat5K backplane. > -Original Message- > From: Roberts, Timothy [mailto:[EMAIL PROTECTED]] > Sent: Thursday, February 08, 2001 3:46 PM > To: '[EMAIL PROTECTED]' > Subject: Show port results - Please identify > > > What does the speed of 400 represent in this example? Is it > the speed of > the route switch? I have only seen 10 and 100. > Thanks > > Port NameStatus Vlanlevel Duplex Speed Type > 3/1 rsm2connected trunk normal half400 > route switch > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct > and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: passed the CCNP routing!
Thank you Ole, I've been taking a CCNP class at ASM Educational Center in College Park, MD under a CCIE instructor. The book that they gave us for the Routing segment wasn't too good (the Syngress one, it has tons of errors in it), but the instructor is awesome. And in response to the IS-IS question-- there weren't any question about that on the exam. >From: Ole Drews Jensen <[EMAIL PROTECTED]> >To: 'Fred Danson' <[EMAIL PROTECTED]> >Subject: RE: passed the CCNP routing! >Date: Thu, 8 Feb 2001 15:10:23 -0600 > >Congratulations, > >Any recommended reading : books, chapters? > >Did you have any ISIS related questions? > >Thanks, > >Ole > > > Ole Drews Jensen > Systems Network Manager > CCNA, MCSE, MCP+I > RWR Enterprises, Inc. > [EMAIL PROTECTED] > http://www.CiscoKing.com > > NEED A JOB ??? > http://www.oledrews.com/job > > > > >-Original Message- >From: Fred Danson [mailto:[EMAIL PROTECTED]] >Sent: Thursday, February 08, 2001 2:41 PM >To: [EMAIL PROTECTED] >Subject: passed the CCNP routing! > > >I just passed the CCNP routing exam with a score of 908! Thank you everyone >for the help. :) >_ >Get your FREE download of MSN Explorer at http://explorer.msn.com > >_ >FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ Get your FREE download of MSN Explorer at http://explorer.msn.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Cisco Documentation CD
but maybe that's changed recently. -Original Message- From: Kevin Welch [mailto:[EMAIL PROTECTED]] Sent: Tuesday, January 30, 2001 8:52 PM To: Wonkyu Lee; [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: Re: Cisco Documentation CD You can order them direct from Cisco... or you can find them on ebay pretty cheap. -- Kevin - Original Message - From: "Wonkyu Lee" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Tuesday, January 30, 2001 3:41 PM Subject: Cisco Documentation CD > > Hi All, > > I just wonder how I can order a Cisco documentation CD. Mine is November, > 1999 version and does not work on win2k. > > > TIA > > Wonkyu Lee > > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Cisco Lab Cables
Here is the site that I found that is cheap. http://www.symmic.com/computer/ -Original Message- From: Mark Rose [mailto:[EMAIL PROTECTED]] Sent: Wednesday, January 31, 2001 12:05 PM To: Daniel Cotts; 'John Neiberger'; [EMAIL PROTECTED] Subject: RE: Cisco Lab Cables Try contacting Robert Lowery ([EMAIL PROTECTED]) I believe his prices are: 3ft for 29$ plus 5 shipping...6ft 35 ea...8ft...37$ each Mark -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Daniel Cotts Sent: Tuesday, January 30, 2001 8:07 PM To: 'John Neiberger'; [EMAIL PROTECTED] Subject: RE: Cisco Lab Cables Also www.LoDanWest.com and pacific cable. There are others. > -Original Message- > From: John Neiberger [mailto:[EMAIL PROTECTED]] > Sent: Tuesday, January 30, 2001 5:20 PM > To: [EMAIL PROTECTED] > Subject: Re: Cisco Lab Cables > > > www.stonewallcable.com is a good place to get them. So far, > I haven't found > any place that has them cheaper. If anyone knows of a place, > please let us > know. > > > > > Where is the best place to purchase cables for back to back > configurations > > etc for cisco equipment? I am working on building a lab > and need to start > > hunting these down. Thanks > > > > Tim > > > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to > [EMAIL PROTECTED] > > > > > > ___ > Send a cool gift with your E-Card > http://www.bluemountain.com/giftcenter/ > > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct > and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 7206 VXR config
Chuck is right, I remember it is for something like, ISL switching of Token Ring, if memory servers. It works poorly as a pure ethernet card, but never tried it myself. Jack <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > The 2 Port FE LAN adapter for the 7206 (vip based module) is not as you > might expect. It turns out > cisco will tell you NOT to use it for regular ethernet 100 Mb traffic. Seems > that board is intended for > some sort of other application and works poorly as a regular ethernet I/O. > Has bugs. I forget what > the actual reason was (from cisco) but that cards intent is not for normal > traffic. > > -Chuck > > > -Original Message- > > From: Jim Healis [SMTP:[EMAIL PROTECTED]] > > Sent: Thursday, January 25, 2001 5:18 PM > > To: [EMAIL PROTECTED] > > Subject: 7206 VXR config > > > > Has anyone ever used the RJ-45 port on the I/O controller on a 7206 to > > actually pass traffic? > > I'm worried that because it sits on a card that has other functions that > > I won't get the needed performance from that port. Or that I won't be > > able to use that port for for passing in-band traffic at all. > > > > So my decision is wavering between getting a 2-port FE LAN adapter or a > > 1-port FE LAN adapter and using the RJ-45 port on the I/O controller. > > > > Any ideas? > > > > Jim > > > > _ > > FAQ, list archives, and subscription info: > > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: 2620 and load balancing
Mo, You don't need BGP if all you want to do is load balance your 2 links. Plus I am not sure how much memory you would need for the 2620 or even if it can handle it.(that's if your taken full routing table) YIKES!! In any case all you need to do is have 2 default static route to your providers. example ip route 0.0.0.0 0.0.0.0 1.1.1.1(MCI) ip route 0.0.0.0 0.0.0.0 2.2.2.1(Sprint) Karl why you were getting packet loss could be cause by something else. If you really want to do BGP get a 3640 instead. -Original Message- From: Moahzam Durrani [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 08, 2001 5:17 PM To: [EMAIL PROTECTED] Subject: 2620 and load balancing If I have two T1'S from different ISP'S and connect them to my 2620, How do I load balance the traffic.Am I thinking of implementing BGP?. At the moment I am just using 1 ISP and keeping the other in standby.I would like to use both together and load balance my traffic. We tried it with both TI'S wortking to gether but packets were being loss, latency decreasing and all sorts of other funky things such as some users could get to some sites and others couldnt. Also will it make a differnce if one ISP requires us to use NAT . Mo Durrani IS&T WYSE\EDS phone:408-473 1246 [EMAIL PROTECTED] [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
appropriate new terminology (was Re: T1 Link)
>At 11:58 PM 2/7/01, Santosh Koshy wrote: >>Thanks priscilla, that helped tremendously... >>If that is the case... then what is the most common L2 Encapsulation used >>when usually setting up a T1 link...(point to point) >>Is it safe to assume HDLC as that is the default encap on the cisco routers > >HDLC is common for point-to-point links, but Cisco's HDLC is non-standard, >so if you were connecting to a non-Cisco router you would probably use PPP. > >In many parts of the world, Frame Relay is the most common WAN encapsulation, but it sounded like you were asking about point-to-poin ^ My eyes first interpreted this as a point-to-pain circuit. I then realized I've worked with quite a few of those. >circuits, so that might not be relevant. > >Priscilla > > >- Original Message - _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 2620 and load balancing
True load balancing in this situation is actually pretty difficult to achieve, especially if you're trying to balance incoming traffic. Is this connection for incoming access to your services, or is it internet access for internal users? Since you're not running BGP, and therefore not advertising your own prefix, and also since the other ISP connection is not active, I'm going to assume that this is for outgoing access. In this case, the bulk of your traffic is incoming web response traffic. You could try using equal weight static routes, one for each connection. That would probably accomplish your objective without the added hassle of running BGP. If you have internal services that you want to advertise to the rest of the world, then you most likely need to use BGP. But then you need to get at least a /24 assigned from one of your ISPs and this isn't always an easy task. Then, you have to apply for your own autonomous system number. Then you should figure out RPSL and register your system and prefix information in the Internet Routing Registry. And that's just for starters! :-) I would seriously consider just using static routes, if possible. Oh, another option is this: check out the Fatpipe Xtreme at www.fatpipeinc.com. It's a piece of hardware designed to do exactly what you're thinking about doing, without having to make any extra router configuration. I don't know much more than that, but we have one of their reps coming to meet with us next week. If the product turns out to be really cool, I'll post a report of the meeting. HTH, John > > If I have two T1'S from different ISP'S and connect them to my 2620, How do > I load balance the traffic.Am I thinking of implementing BGP?. At the moment > I am just using 1 ISP and keeping the other in standby.I would like to use > both together and load balance my traffic. We tried it with both TI'S > wortking to gether but packets were being loss, latency decreasing and all > sorts of other funky things such as some users could get to some sites and > others couldnt. Also will it make a differnce if one ISP requires us to use > NAT . > > Mo Durrani > IS&T > WYSE\EDS > phone:408-473 1246 > [EMAIL PROTECTED] > [EMAIL PROTECTED] > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Find the best deals on the web at AltaVista Shopping! http://www.shopping.altavista.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: 2620 and load balancing
well most of the traffic is out going for internet use. We get to other corporate sites by frame relay on a seperate router. However we will be shortly be introducing OUTLOOK WEB access on one of our DMZ's so users could access their corporate mail through the internet, Pix will be doing all the filtering and security. Thanks.. Mo Durrani IS&T WYSE\EDS phone:408-473 1246 [EMAIL PROTECTED] [EMAIL PROTECTED] -Original Message- From: John Neiberger [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 08, 2001 3:00 PM To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Subject: Re: 2620 and load balancing True load balancing in this situation is actually pretty difficult to achieve, especially if you're trying to balance incoming traffic. Is this connection for incoming access to your services, or is it internet access for internal users? Since you're not running BGP, and therefore not advertising your own prefix, and also since the other ISP connection is not active, I'm going to assume that this is for outgoing access. In this case, the bulk of your traffic is incoming web response traffic. You could try using equal weight static routes, one for each connection. That would probably accomplish your objective without the added hassle of running BGP. If you have internal services that you want to advertise to the rest of the world, then you most likely need to use BGP. But then you need to get at least a /24 assigned from one of your ISPs and this isn't always an easy task. Then, you have to apply for your own autonomous system number. Then you should figure out RPSL and register your system and prefix information in the Internet Routing Registry. And that's just for starters! :-) I would seriously consider just using static routes, if possible. Oh, another option is this: check out the Fatpipe Xtreme at www.fatpipeinc.com. It's a piece of hardware designed to do exactly what you're thinking about doing, without having to make any extra router configuration. I don't know much more than that, but we have one of their reps coming to meet with us next week. If the product turns out to be really cool, I'll post a report of the meeting. HTH, John > > If I have two T1'S from different ISP'S and connect them to my 2620, How do > I load balance the traffic.Am I thinking of implementing BGP?. At the moment > I am just using 1 ISP and keeping the other in standby.I would like to use > both together and load balance my traffic. We tried it with both TI'S > wortking to gether but packets were being loss, latency decreasing and all > sorts of other funky things such as some users could get to some sites and > others couldnt. Also will it make a differnce if one ISP requires us to use > NAT . > > Mo Durrani > IS&T > WYSE\EDS > phone:408-473 1246 > [EMAIL PROTECTED] > [EMAIL PROTECTED] > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Find the best deals on the web at AltaVista Shopping! http://www.shopping.altavista.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: T1 Link
Priscilla, In the Cisco Networking Academy (Sem4) curriculum, significantly more time is spent on PPP operation & configuration than Cisco's HDLC. One might get the impression from this that Cisco is pushing the use of PPP (with its better security features) over its own HDLC even in an all Cisco environment. Tom Lisa, Instructor, CCNA, CCAI Community College of Southern Nevada Cisco Regional Networking Academy Priscilla Oppenheimer wrote: > At 11:58 PM 2/7/01, Santosh Koshy wrote: > >Thanks priscilla, that helped tremendously... > >If that is the case... then what is the most common L2 Encapsulation used > >when usually setting up a T1 link...(point to point) > >Is it safe to assume HDLC as that is the default encap on the cisco routers > > HDLC is common for point-to-point links, but Cisco's HDLC is non-standard, > so if you were connecting to a non-Cisco router you would probably use PPP. > > In many parts of the world, Frame Relay is the most common WAN > encapsulation, but it sounded like you were asking about point-to-poin > circuits, so that might not be relevant. > > Priscilla > > >- Original Message - > >From: "Priscilla Oppenheimer" <[EMAIL PROTECTED]> > >Newsgroups: groupstudy.cisco > >Sent: Wednesday, February 07, 2001 11:50 PM > >Subject: Re: T1 Link > > > > > > > Seeing that nobody had really addressed your question yet, I decided to > > > take a stab at it. > > > > > > T1 is a high-speed digital carrier facility developed by AT&T in the 1950s > > > to support long-haul pulse-code modulation (PCM) voice transmission. T1 > > > provides digital voice circuits or "channels." There are 24 channels per > > > each T1 line or "trunk." > > > > > > AT&T describes their Digital Carrier System as a "two-point, dedicated, > > > high capacity, digital service provided on terrestrial digital facilities > > > capable of transmitting 1.544 Mbps. The interface to the customer can be > > > either a T1 carrier or a higher order multiplexed facility." > > > > > > So, what do you think? To send data on this do we need to encapsulate it? > > > You betcha, as Leo on TechTalk would say. That's why we have > >"encapsulation > > > frame-relay" and "encapsulation ppp," among others. > > > > > > Hope that helps a bit. > > > > > > Priscilla > > > > > > > > > > > > >On Wednesday, February 07, 2001 at 06:36:34 PM, Santosh Koshy wrote: > > > > > > > > > Pardon my ignorance here > > > > > Is there such a thing as just a "T1 Link"... > > > > > > > > > > of what I understand T1 / Frac T1 resides in the physical layer > >Dont u > > > > > need something at the Data Link Layer (such as Frame Relay) before you > >can > > > > > enable IP or IPX at layer 3 > > > > > > > > > > > > > > > _ > > > > > FAQ, list archives, and subscription info: > > > > http://www.groupstudy.com/list/cisco.html > > > > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > > > > > > > > > > > > > > > > > > > > > > > Priscilla Oppenheimer > > > http://www.priscilla.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
OSPF authentication
I have the two statements on my routers: ip ospf message-digest-key 1 md5 cisco area 0 authentication message-digest It works on routers A and B, but does not work on routers C, D. So I wonder that anyone have known that there is some problem with some of the software that does not support OSPF authentication. both routers C and D are Cisco 2500 with version 11.3 Thanks Hubert _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Load Balancing Advice
There is BGP running on the Internet routers and they have their own AS. So now that I know default-information originate is the way to go, can it be put on two routers on the same segment at the same time? And also, since the command requires the router to have a default route itself, should I put in a static route pointing towards the ISP peer? Would this be counter-productive since I'm taking in so many BGP routes already? I don't want to use the 'always' parameter because what if my link goes down. I don't want to rely on icmp redirect to point back to the other Internet router. Thanks for your advice. Michael --- "Howard C. Berkowitz" <[EMAIL PROTECTED]> wrote: > >[MCI][Cat5K w/RSM][UUNet] > >| > > Internal LAN > > > > > >I have a client with two Internet routers > running > >BGP multihomed to the ISPs, MCI and UUNET. Inbound > >traffic to their AS is pretty much balanced between > >MCI and UUNET. On the inside however, where MCI and > >UUNET connect into a Cat5K, the MCI is the HSRP > active > >router and thus handles most of the outbound > traffic. > >The client wants to load balance outbound traffic > >between the two. > >So when the client recently added an RSM to the > >Cat5K, I proposed to remove HSRP totally and run > OSPF > >so that the RSM sees two equal-cost default routes > to > >the routers. > >My question is, can you run default-information > >originate on two routers? And would that work in > this > >scenario? > > > It's a good approach, at least for load-balancing > your outgoing > traffic. To have any chance of affecting incoming > traffic, you need > to play BGP games. Since you speak of their AS, I > assume there is BGP. > > Default-information originate works quite well. If > the Cat5K is the > only layer 3 aware hop, the next caveat may not be > that important, > but if it feeds additional router hops, be sure that > the default > originated is of OSPF external type 1, not type 2, > so internal > reachability is considered in the interest of load > balancing. > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
ISP Opinions needed
We are currently multihomed to Sprint and Verio, and I'm not very happy with Verio's stability so far. When their contract comes up, we're considering dropping them and moving to a different provider. I've done some preliminary research on UUNet, Global Crossing, AT&T, and Cable & Wireless. I've dropped UUNet from consideration because their T-1 prices are not competitive at all. At this time, my preference order is C&W, GC, and then AT&T. Do any of you have any experience with these companies that you'd like to share? Stability and customer service are *BIG* issues with us, and so far Verio doesn't rank very high with us in either category. I remember seeing a post a while back that said "Verio=downtime". Well, we haven't too much of a problem with local downtime, but there have been some days where our prefix was unreachable the entire day from portions of Verio's network. Needless to say, that is unacceptable performance. Any thoughts or opinions on this topic would be greatly appreciated! Regards, John Find the best deals on the web at AltaVista Shopping! http://www.shopping.altavista.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: HSRP on my WKS subnet
Well, the 6509s will past broadcasts and multicasts through so your hosts off each VLAN will see that. The only thing that I can think of (and I have no idea if it would work) is to run CGMP on the switch to denote which ports should and should not get the multicast traffic. Michael --- Stephen Skinner <[EMAIL PROTECTED]> wrote: > > is there a way of blocking them because i > thought that as long as the > clients can link to the virtual addressthen > there would be no need for > the hsrp hello (which are just for the cat`s and > no-one else needs to know > about them ) to be seen by all workstations...surely > this is shoving > un-neccasery packetsa into my Vlan... > > or am i completely off the mark > > many thanks > > steve > > > >From: "Brant Stevens" <[EMAIL PROTECTED]> > >Reply-To: "Brant Stevens" <[EMAIL PROTECTED]> > >To: "Stephen Skinner" <[EMAIL PROTECTED]>, > <[EMAIL PROTECTED]> > >Subject: RE: HSRP on my WKS subnet > >Date: Thu, 8 Feb 2001 11:02:46 -0500 > > > >Yes, you should be seeing them... That is proper > multicast behavior, and > >these packets would be seen for any VLAN that is > running HSRP... > > > >Brant I. Stevens > >Internetwork Solutions Engineer > >Thrupoint, Inc. > >545 Fifth Avenue, 14th Floor > >New York, NY. 10017 > >646-562-6540 > > > >-Original Message- > >From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED]]On Behalf Of > >Stephen Skinner > >Sent: Thursday, February 08, 2001 8:00 AM > >To: [EMAIL PROTECTED] > >Subject: HSRP on my WKS subnet > > > > > >Guys, > > > >i have a slight problem ... i have 2 6509`s running > HSRP on my comms vlan 4 > >these 65`s do all routing between Vlan`s > > > >i have sniffer pro on my local workstation , vlan 5 > > > >i am seeing multicast traffic from 224.0.0.2 which > has HSRP packet headers > >(that are hello`s)every 3 seconds > >Should i be seeing these i don`t think i > should > >i think the only Vlan that these should be seen on > is the comms vlan 4 > >? answers please.. > > > >also if i am right how can i stop the HSRP hello > bieng sent to all the > >other > >vlan`s > > > >many thanks in advance > > > >steve > >_ > >Get Your Private, Free E-mail from MSN Hotmail at > http://www.hotmail.com. > > > >_ > >FAQ, list archives, and subscription info: > >http://www.groupstudy.com/list/cisco.html > >Report misconduct and Nondisclosure violations to > [EMAIL PROTECTED] > > > >_ > >FAQ, list archives, and subscription info: > >http://www.groupstudy.com/list/cisco.html > >Report misconduct and Nondisclosure violations to > [EMAIL PROTECTED] > > _ > Get Your Private, Free E-mail from MSN Hotmail at > http://www.hotmail.com. > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Question for isdn/telco gods...
Another question for current (or former) telco switch techs... We are having issues again trying to issue the "isdn service ... dsl 0 state 1" command to put all the b-channels in a single PRI into 'maintenance' state. Telco claims that we are sending 'ni-2' protocol service commands. We don't even have the option of running 'ni-2' as the switch protocol. Is it really possible telco is seeing ni-2 statements coming from our NAS when we don't even have that protocol option? Our main options for the NAS (in the US) are national, 5ess-custom or dms-100. Is telco misinterpreting something we are sending? OR Is our NAS sending ambiguous information to the telco LT switch?? Thanks! NAS = AS5800, running 12.0.5(?) s/thing like that... = Don't forget to cross your digits... Dan West -- CCNA, CCNP (in progress) __ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: LLC type 1
At 11:09 AM 2/8/01, Jeremy Dumoit wrote: >Hi Priscilla, > >I like your book very much!! Thanks. > Actually, I was >trying to figure out if any LAN protocols use it. For >instance 802.3 frames include an 802.2 type 2 header If the upper layer is NetBEUI or SNA, then 802.3 frames include an 802.2 type 2 header. Type 2 is connection-oriented. It includes sequence numbers, flow control, etc. It uses a four-byte header. (The control field is two bytes.) When IP, IPX, or AppleTalk run on top of 802.3, they use the connectionless type 1 802.2. It uses a three-byte header. IP usually uses Ethernet V2, actually. PPP is similar to connectionless type 1 802.2, as you say. Priscilla >before the data field. I guess PPP uses this, or some >for of type 1 LLC. > >Thanks! > >Jeremy >--- Priscilla Oppenheimer <[EMAIL PROTECTED]> wrote: > > You are applying the OSI layering model upside down > > with this question. You > > should be asking if there is any network-layer > > protocol that uses the LLC 1 > > service at the data-link layer. And the answer is > > yes. IP, Novell, > > AppleTalk, etc. use LLC 1 if they use LLC at all. > > (They can all use > > Ethernet V2; see the discussion on 802.3 for more > > info on that!) > > > > NetBEUI uses LLC type 2. SNA uses LLC type 2. > > > > Priscilla > > > > At 09:17 AM 2/8/01, Jeremy Dumoit wrote: > > >Anyone know if there's a LAN type out there > > that > > >uses LLC type 1 headers? > > > > > > Thanks, > > > > > > JD > > > > > >__ > > >Do You Yahoo!? > > >Get personalized email addresses from Yahoo! Mail - > > only $35 > > >a year! http://personal.mail.yahoo.com/ > > > > > >_ > > >FAQ, list archives, and subscription info: > > >http://www.groupstudy.com/list/cisco.html > > >Report misconduct and Nondisclosure violations to > > [EMAIL PROTECTED] > > > > > > > > > > Priscilla Oppenheimer > > http://www.priscilla.com > > >__ >Do You Yahoo!? >Get personalized email addresses from Yahoo! Mail - only $35 >a year! http://personal.mail.yahoo.com/ Priscilla Oppenheimer http://www.priscilla.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: not quite sure...
At 11:19 AM 2/8/01, Jeremy Dumoit wrote: >I actually think it depends on what encapsulation >is running accross the serial link. If you're using >HDLC then it's a connection oriented, reliable Cisco's HDLC is non-standard and is not connection-oriented. The router would not retransmit. The router also won't retransmit if it's PPP, Frame Relay, Ethernet, etc. etc etc. etc. >protocol... meaning if a packet is lost in transit >accross the serial link, the router will knw it when >it receives a response from the destination router. >It'll then resend the frame. If you're using a >datagram protocol, like ppp, however, it will rely on >the upper layer protocols to detect missing data.. > > >--- Brant Stevens <[EMAIL PROTECTED]> wrote: > > The question is if Router B and Router C are > > routing, or if they are > > bridging... If they are routing, then Router B > > would re-transmit a packet. > > If bridging is happening, then Host A would > > retransmit... > > > > Hope this helps... > > > > Brant I. Stevens > > Internetwork Solutions Engineer > > Thrupoint, Inc. > > 545 Fifth Avenue, 14th Floor > > New York, NY. 10017 > > 646-562-6540 > > > > -Original Message- > > From: [EMAIL PROTECTED] > > [mailto:[EMAIL PROTECTED]]On Behalf Of > > Dennis Laganiere > > Sent: Wednesday, February 07, 2001 11:32 PM > > To: '[EMAIL PROTECTED]' > > Subject: not quite sure... > > > > > > I've tried to diagram this question to make it > > clear... > > > > Host A is sending to Host D... > > > > A line error occurs on the serial link between > > Router-B and Router-C while > > passing a packet from Host-A to Host-B > > > > Devices - Host A-ROUTER B-ROUTER > > CHOST D > > Interfaces - (A1)(B1) (B2)(C1) > > (C2) (D1) > > > > What device would rebroadcast? > > > > I think that router-B (port B2) would realize an > > error had occured, and > > would resend, so the answer should be port B2, but > > I've been through all my > > books and can't find anything to confirm or deny my > > conclusion... > > > > Any thoughts? > > > > _ > > FAQ, list archives, and subscription info: > > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to > > [EMAIL PROTECTED] > > > > _ > > FAQ, list archives, and subscription info: > > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to >[EMAIL PROTECTED] > > >__ >Do You Yahoo!? >Get personalized email addresses from Yahoo! Mail - only $35 >a year! http://personal.mail.yahoo.com/ > >_ >FAQ, list archives, and subscription info: >http://www.groupstudy.com/list/cisco.html >Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] Priscilla Oppenheimer http://www.priscilla.com _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: 2620 and load balancing
if you're doing loadbalancing / redundancy for incoming traffic then you're going to have to go with BGP. If incoming redundancy is not important, you can use two static routes as Karl has mentioned. Moahzam Durrani <[EMAIL PROTECTED]> wrote in message ED49D16A9BE4D41189C000104B2E399864BC1F@sj-exchange">news:ED49D16A9BE4D41189C000104B2E399864BC1F@sj-exchange... > well most of the traffic is out going for internet use. We get to other > corporate sites by frame relay on a seperate router. However we will be > shortly be introducing OUTLOOK WEB access on one of our DMZ's so users could > access their corporate mail through the internet, Pix will be doing all the > filtering and security. > Thanks.. > Mo Durrani > IS&T > WYSE\EDS > phone:408-473 1246 > [EMAIL PROTECTED] > [EMAIL PROTECTED] > > > -Original Message- > From: John Neiberger [mailto:[EMAIL PROTECTED]] > Sent: Thursday, February 08, 2001 3:00 PM > To: [EMAIL PROTECTED] > Cc: [EMAIL PROTECTED] > Subject: Re: 2620 and load balancing > > > True load balancing in this situation is actually pretty difficult to > achieve, especially if you're trying to balance incoming traffic. > > Is this connection for incoming access to your services, or is it internet > access for internal users? > > Since you're not running BGP, and therefore not advertising your own prefix, > and also since the other ISP connection is not active, I'm going to assume > that this is for outgoing access. > > In this case, the bulk of your traffic is incoming web response traffic. > You could try using equal weight static routes, one for each connection. > That would probably accomplish your objective without the added hassle of > running BGP. > > If you have internal services that you want to advertise to the rest of the > world, then you most likely need to use BGP. But then you need to get at > least a /24 assigned from one of your ISPs and this isn't always an easy > task. Then, you have to apply for your own autonomous system number. Then > you should figure out RPSL and register your system and prefix information > in the Internet Routing Registry. > > And that's just for starters! :-) I would seriously consider just using > static routes, if possible. > > Oh, another option is this: check out the Fatpipe Xtreme at > www.fatpipeinc.com. It's a piece of hardware designed to do exactly what > you're thinking about doing, without having to make any extra router > configuration. I don't know much more than that, but we have one of their > reps coming to meet with us next week. If the product turns out to be > really cool, I'll post a report of the meeting. > > HTH, > John > > > > > If I have two T1'S from different ISP'S and connect them to my 2620, How > do > > I load balance the traffic.Am I thinking of implementing BGP?. At the > moment > > I am just using 1 ISP and keeping the other in standby.I would like to use > > both together and load balance my traffic. We tried it with both TI'S > > wortking to gether but packets were being loss, latency decreasing and all > > sorts of other funky things such as some users could get to some sites and > > others couldnt. Also will it make a differnce if one ISP requires us to > use > > NAT . > > > > Mo Durrani > > IS&T > > WYSE\EDS > > phone:408-473 1246 > > [EMAIL PROTECTED] > > [EMAIL PROTECTED] > > > > > > _ > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > > > Find the best deals on the web at AltaVista Shopping! > http://www.shopping.altavista.com > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: OSPF authentication
Posting your config would be a lot of help "Hubert Pun" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > I have the two statements on my routers: > ip ospf message-digest-key 1 md5 cisco > area 0 authentication message-digest > It works on routers A and B, but does not work on routers C, D. > > So I wonder that anyone have known that there is some problem with some > of the software that does not support OSPF authentication. > > both routers C and D are Cisco 2500 with version 11.3 > > Thanks > Hubert > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
RE: Token Ring White Paper
Here is the sites. http://www.ccprep.com/resources/news/archives/Token_Ring2.pdf Rgds, Sam > -Original Message- > From: Yonkerbonk [SMTP:[EMAIL PROTECTED]] > Sent: Friday, February 09, 2001 3:45 AM > To: Hal White; [EMAIL PROTECTED] > Subject: Re: Token Ring White Paper > > I originall found it on ccprep.com and it's still > there. So check that out under Resources. > > Michael > > --- Hal White <[EMAIL PROTECTED]> wrote: > > Several people have asked me where I got the Token > > Ring white paper that I > > used to study for the CCIE written. I got the paper > > from > > www.certificationzone.com when it was free for > > download a few months ago. > > Unfortunately, it is not free this month. If you > > have a membership you > > should definitely read this white paper. If you are > > not a member then go to > > their site and decide if it is worth spending the > > money. I was not a > > member, but others on the list have said it was a > > good investment. > > Caslow's book and the exam cram both have chapters > > about bridging and token > > ring that are also helpful although they do not > > explain it as well and as > > clearly as the white paper on certification zone. > > > > There is another document about Token Ring that is > > also helpful which can be > > found at > > http://www.groupstudy.com/notes/notepages/rif2.html > > > > I hope this helps everyone who is preparing for the > > CCIE Written. > > > > Hal > > > _ > > Get your FREE download of MSN Explorer at > > http://explorer.msn.com > > > > _ > > FAQ, list archives, and subscription info: > > http://www.groupstudy.com/list/cisco.html > > Report misconduct and Nondisclosure violations to > [EMAIL PROTECTED] > > > __ > Do You Yahoo!? > Get personalized email addresses from Yahoo! Mail - only $35 > a year! http://personal.mail.yahoo.com/ > > _ > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: T1 Link
At 03:09 PM 2/8/01, Tom Lisa wrote:
>Priscilla,
>
>In the Cisco Networking Academy (Sem4) curriculum, significantly more time
>is spent on
>PPP operation & configuration than Cisco's HDLC.
That's just because you can say something useful about PPP. It's great for
instructors. They can show off how much they have learned about PAP and
CHAP. &;-)
What can you say about Cisco HDLC? Not much, though here are some comments
on Cisco HDLC, since it is being talked about so much today:
cisco's default encapsulation on synchronous serial lines uses HDLC framing,
with packet contents defined as follows:
The first ("address") octet is set to 0x0F for unicast packets and 0x8F
for broadcast packets. Broadcast just means that the higher-level protocol
thought this was a broadcast packet; cisco doesn't support multidrop
HDLC at this time.
The second ("control") octet is always 0.
The next two octets are a 16-bit protocol code, sent most-significant-first.
These codes are usually Ethernet type codes. cisco has added some codes to
support packet types that don't appear on Ethernets. The current list of codes
is as follows:
TYPE_PUP0x0200 PUP
TYPE_XNS0x0600 XNS
TYPE_IP10MB 0x0800 IP
TYPE_CHAOS 0x0804 Chaos
TYPE_IEEE_SPANNING 0x4242 DSAP/SSAP for IEEE bridge spanning
prot.
TYPE_DECNET 0x6003 DECnet phase IV
TYPE_BRIDGE 0x6558 Bridged Ethernet/802.3 packet
TYPE_APOLLO 0x8019 Apollo domain
TYPE_REVERSE_ARP0x8035 cisco SLARP (not real reverse ARP!)
TYPE_DEC_SPANNING 0x8038 DEC bridge spanning tree protocol
TYPE_ETHERTALK 0x809b Apple EtherTalk
TYPE_AARP 0x80f3 Appletalk ARP
TYPE_NOVELL10x8137 Novell IPX
TYPE_CLNS 0xFEFE ISO CLNP/ISO ES-IS DSAP/SSAP
This list is shared between serial and Ethernet encapsulations. Not all
these codes will necessarily appear on serial lines. This list will probably
be extended as cisco adds support for more protocols.
Bytes after this are higher-level protocol data. These normally look the
same as they'd look on Ethernet. Bridging packets include Ethernet/802.3
MAC headers; no other packets do.
Packets with type 8035 (reverse ARP) don't contain reverse ARP data as
they would on an Ethernet. Instead, they carry a protocol cisco refers to
as SLARP. SLARP has two functions: dynamic IP address determination and
serial line keepalive.
The serial line model supported by SLARP assumes that each serial line is
a separate IP subnet, and that one end of the line is host number 1, while
the other end is host number 2. The SLARP address resolution protocol allows
system A to request that system B tell system A system B's IP address,
along with the IP netmask to be used on the network. It does this by sending
a SLARP address resolution request packet, to which system B responds with a
SLARP address resolution reply packet. System A then attempts to determine its
own IP address based on the address of system B. If the host portion of system
B's address is 1, system A will use 2 for the host portion of its own IP
address. Conversely, if system B's IP host number is 2, system A will use IP
host number 1. If system B replies with any IP host number other than 1 or 2,
system A assumes that system B is unable to provide it with an address via
SLARP.
For the SLARP keepalive protocol, each system sends the other a keepalive
packet at a user-configurable interval. The default interval is 10 seconds.
Both systems must use the same interval to ensure reliable operation.
Each system assigns sequence numbers to the keepalive packets it sends,
starting with zero, independent of the other system. These sequence numbers
are included in the keepalive packets sent to the other system. Also included
in each keepalive packet is the sequence number of the last keepalive packet
_received_ from the other system, as assigned by the other system. This number
is called the returned sequence number. Each system keeps track of the last
returned sequence number it has received. Immediately before sending a
keepalive
packet, it compares the sequence number of the packet it is about to send with
the returned sequence number in the last keepalive packet it has received.
If the two differ by 3 or more, it considers the line to have failed, and
will route no further higher-level data across it until an acceptable keepalive
response is received.
There is interaction between the SLARP address resolution protocol and the
SLARP keepalive protocol. When one end of a serial line receives a SLARP
address resolution request packet, it assumes that the other end has restarted
its serial interface and reset its keepalive sequence numbers. In addition
to responding to the address resolution request, it will act as if the
other end had sent
RE: Cisco Documentation CD
This has been discussed on the list before... Any CD after August of 2000 is supposed to work fine with Win2k. I have a December 2000 cd and it works fine under win2k. -- Kevin -Original Message- From: Bolton, Travis [mailto:[EMAIL PROTECTED]] Sent: Thursday, February 08, 2001 2:39 PM To: 'Kevin Welch'; Wonkyu Lee; [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: RE: Cisco Documentation CD Does the newer version of the CD work with win2k? I didn't think it did but maybe that's changed recently. -Original Message- From: Kevin Welch [mailto:[EMAIL PROTECTED]] Sent: Tuesday, January 30, 2001 8:52 PM To: Wonkyu Lee; [EMAIL PROTECTED]; [EMAIL PROTECTED] Subject: Re: Cisco Documentation CD You can order them direct from Cisco... or you can find them on ebay pretty cheap. -- Kevin - Original Message - From: "Wonkyu Lee" <[EMAIL PROTECTED]> To: <[EMAIL PROTECTED]>; <[EMAIL PROTECTED]> Sent: Tuesday, January 30, 2001 3:41 PM Subject: Cisco Documentation CD > > Hi All, > > I just wonder how I can order a Cisco documentation CD. Mine is November, > 1999 version and does not work on win2k. > > > TIA > > Wonkyu Lee > > > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Cisco CCNP books question
First of all CONGRATULATIONS I'm currently studying for the CCDA. What resources did you use to study? I have these: Designing Cisco Networks - Teare CCDA Exam Certification Guide - Bruno Top-Down Network Design - Oppenheimer Cisco Certified Design Associate - Lammle A bunch of "study guides" I gathered from the net. Which I think is to much information. Were the case studys on the CCDA test similar to any that you had seen before? After the CCDA, I plan to pursue the CCNP, CCDP. I passed the switching test using the BCMSN from the CCNP Prep Library (Very Good) I would recommend buying the Library (4 vol set)... Check www.addall.com for best prices on the web: http://www.addall.com/New/compare.cgi?dispCurr=USD&id=3600&isbn=1587050137&l ocation=1&thetime=20010208160156&state=VA Good luck! Thanks -Jay. Hunt Lee <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > I passed my CCDA today. Thanks so much for all your help and support. > > Does anyone know what is the difference between the CCNP Certification > Library and CCNP Preparation Library? Which is better to use for > studying the CCNP exams? > > CCNP Certification Library: > > CCNP Routing Exam Certification Guide > CCNP Switching Exam Certification Guide > CCNP Remote Access Exam Certification Guide > CCNP Support Exam Certification Guide > > CCNP Preparation Library: > > Building Scalable Cisco Networks > Building Cisco Multilayer Switched Networks > Building Cisco Remote Access Networks > Cisco Internetwork Troubleshooting > > Any help would be greatly appreciated. > > Regards, > Hunt Lee > IP Solution Anaylst > Cable and Wireless (Sydney) > > _ > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html > Report misconduct and Nondisclosure violations to [EMAIL PROTECTED] > _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Cisco CCNP books question
Also, Make sure that you get the 2nd edition (Oct 2000) I was looking the other day and ecampus had the best price, but they are currently out of stock. Keep checking there or the www.addall.com site. Cheers, Jay _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
passed CCIE written with a little extra stress
I passed the CCIE written today. The test crashed right in the middle = of the exam and they had to have a new one downloaded. I had to start = all over that was just great. I hope it does not happen to anybody = else. I just found a good cram for the test after I took it = unfortunately. Here it is hope it helps somebody. http://cramsession.brainbuzz.com/cramsession/cisco/ccie_written/ Joe Johonness _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Official BSCN couser books anyone?
Looking to trade for the BCRAN. I still have access to some cool online stuff for BSCN too. E-mail me for more info. Cheers, Jeff _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
Re: Subject: Sniffer Program
>Can someone recommend a good WindowsME sniffer? Well, I am not sure if it works on Windows ME boxes, but there is a protocol analyzer that will work on most other Winthings (95,98, NT4, etc.) It is fairly decent given the cost(free). My understanding is that it comes from a Win32 ported version of TCPdump. There is only one downside that I am aware of. All of the help files are in Italian. If you can figure out how to get it all loaded, its fairly decent. I am trying to work on the documentation side of things by trying to get a deal struck between my wife and the guy that wrote the code for the program as part of his doctoral thesis. He is in no hurry to get everything translated into English. OTOH, if I give the right type of gratuity to my wife :-), she might be willing to do it herself (I hope). We'll see how (and if) it works out. Here it is: http://netgroup-serv.polito.it/windump/ http://netgroup-serv.polito.it/analyzer/ HTH, Paul Werner Get your own "800" number Voicemail, fax, email, and a lot more http://www.ureach.com/reg/tag _ FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]
