You wrote: " A few years ago we were all (well some of us) scared about the scalability of OSPF - how much memory, processing power and how many AS's could it scale to. This is why IS-IS was looked at by tier 1 and 2 carriers. In those days, a 7206 with a 150MHz proc was common place, and we were running out of space for the 3 tables (largish) required and looking for something new."
I'm a little confused by that. I always thought that IS-IS was old as dirt, and that OSPF was based on IS-IS. You make it sound like OSPF was around first, and that IS-IS was the "something new" that was designed due to OSPF's scalability issues. What is the correct order? Fred Reimer - CCNA Eclipsys Corporation, 200 Ashford Center North, Atlanta, GA 30338 Phone: 404-847-5177 Cell: 770-490-3071 Pager: 888-260-2050 NOTICE; This email contains confidential or proprietary information which may be legally privileged. It is intended only for the named recipient(s). If an addressing or transmission error has misdirected the email, please notify the author by replying to this message. If you are not the named recipient, you are not authorized to use, disclose, distribute, copy, print or rely on this email, and should immediately delete it from your computer. -----Original Message----- From: Dom [mailto:[EMAIL PROTECTED] Sent: Monday, September 01, 2003 6:46 PM To: [EMAIL PROTECTED] Subject: RE: IS-IS [7:74508] >the answer is simple and practical. What with the one day lab and the speed with which cheats get circulated, lab >scenarios are revised much more often than they used to. Adding IS-IS allows for more permutations to add to the mix. >Especially now that IGRP is no longer there. The proctors still need lots of ways to screw you with redistribution. IS-IS >redfistribution gives them that in spades. ;-> A few years ago we were all (well some of us) scared about the scalability of OSPF - how much memory, processing power and how many AS's could it scale to. This is why IS-IS was looked at by tier 1 and 2 carriers. In those days, a 7206 with a 150MHz proc was common place, and we were running out of space for the 3 tables (largish) required and looking for something new. Best regards, Dom Stocqueler SysDom Technologies Visit our website - www.sysdom.org **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=74656&t=74508 -------------------------------------------------- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
