From: Brian Dennis (bdennis@internetworkexpert.com)
Date: Tue May 15 2007 - 20:50:41 ART
That is implied either directly or indirectly when saying "if the lab
doesn't care".
--Brian Dennis, CCIE4 #2210 (R&S/ISP-Dial/Security/SP) bdennis@internetworkexpert.com Internetwork Expert, Inc. http://www.InternetworkExpert.com Toll Free: 877-224-8987 Direct: 775-745-6404 (Outside the US and Canada)
On 5/15/07 3:25 PM, "Michael Zuo" <mzuo@ixiacom.com> wrote:
> Another twist to your question is that you need to figure out whether a > certain peering method is implied (not explicitly asked for). An > example would be if you are asked to make sure that the BGP peering does > not go down when interfaces go down. > > Personally I think the key is not jumping to one specific configuration > method right after you read the question. Think about the alternatives, > if they are not explicitly or implicitly prohibited and they all achieve > the same goal, then, you can use anything you like > > > Michael Zuo > CCIE #17800 > CCIE Notes for sale :) > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&ih=003&sspagename=STRK%3AM > ESE%3AIT&viewitem=&item=130113839768&rd=1&rd=1 > > > -----Original Message----- > From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of > Brian Dennis > Sent: Tuesday, May 15, 2007 1:31 PM > To: premkumar somasundaram; ccielab@groupstudy.com > Subject: Re: BGP > > If you peered via the directly connected interfaces or via the loopbacks > but > the lab doesn't care how you peered then it doesn't matter. Don't try > to > apply real world best practices to the CCIE lab. You are not going to > be > graded on "real world" best practices or design in the lab. > > I've worked for a couple tier 1 ISPs over the years and I can tell you > that > you can't make a blanket statement like "always peer iBGP using the > loopback > interfaces". If someone makes that statement more than likely they > don't > have a lot of real world ISP experience. > > When given a task think about all of the options that meet the > requirements > and implement the simplest option. That being said you may notice > workbook > solutions that use "best practices" but it doesn't mean that other > options > are incorrect. > > HTH, > > Brian Dennis, CCIE4 #2210 (R&S/ISP-Dial/Security/SP) > bdennis@internetworkexpert.com > > Internetwork Expert, Inc. > http://www.InternetworkExpert.com > Toll Free: 877-224-8987 > Direct: 775-745-6404 (Outside the US and Canada) > > > > > On 5/15/07 12:35 PM, "premkumar somasundaram" > <premkumar.somasundaram@gmail.com> wrote: > >> Group, >> I have seen lot of posts regarding the over configuration on the > routers. >> CCIE gurus have always instructed that we should configure only what > is >> asked. But I have seen two labs where in the question is asked to > just >> configure BGP peering between R1 &R2. On the solution book, it is > configured >> as peering between loopbacks. Is there any reason behind it ?? I agree > that >> this is too subjective. Just curious whether any has come across this >> situation. >> >> Thanks >> Prem >> >> > _______________________________________________________________________ >> Subscription information may be found at: >> http://www.groupstudy.com/list/CCIELab.html > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html
This archive was generated by hypermail 2.1.4 : Fri Jun 01 2007 - 06:55:21 ART