That makes a lot of sense. Thank you for your answer. 

Tom


-----Original Message-----
From: Tony [mailto:[EMAIL PROTECTED] 
Sent: Saturday, October 25, 2008 5:30 PM
To: [email protected]; Kacprzynski, Tomasz
Subject: RE: [c-nsp] BGP Multihomed Selective/Conditional Advertisement




--- On Sun, 26/10/08, [EMAIL PROTECTED]
<[EMAIL PROTECTED]> wrote:

> From: [EMAIL PROTECTED] <[EMAIL PROTECTED]>
> Subject: RE: [c-nsp] BGP Multihomed Selective/Conditional 
> Advertisement
> To: [EMAIL PROTECTED], [email protected]
> Date: Sunday, 26 October, 2008, 3:54 AM I'm not sure if I can have 
> multiple advertise-maps also, but can't find any documentation on it 
> either. Does anyone else know?
> 

This is the best doco I could find:

http://www.ciscopress.com/articles/article.asp?p=169556&seqNum=2

Probably the most relevant section is this :

===
NOTE

A conditional advertisement does not create routes; it only withholds
them until the condition is met. These routes must already be present in
the BGP RIB.
===

Having read that, I don't think you're going to be able to do what you
want with exist or nonexist maps, as they only control IF a prefix is
advertised, not any of the other stuff about the prefix being
advertised.


      
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