From: Michael Zuo (mzuo@ixiacom.com)
Date: Tue May 15 2007 - 19:25:08 ART
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
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-----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
>
>
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