RE: AS path inverse prepending ?

From: Gyo (Gabor.Gyori@xxxxxx)
Date: Tue Jul 02 2002 - 14:19:18 GMT-3


   
Yes, it is a good idea, thanks for all. In this case the as-path will be AS3.
It works fine when the summary covers more than one advertised prefix (or
covers one with shorter prefix).

How can we make AS2 AS3 as-path configuring only R3 using the least config
statements ? (as-path prepend requires 1 line for acl, 3 for route-map, 1 for
applying route-map, plus on for the summary).

Gabor

-----Original Message-----
From: Shane Miles [mailto:smiles@ftdata.com]
Sent: Tuesday, July 02, 2002 4:35 PM
To: 'ccielab@groupstudy.com '
Subject: RE: AS path inverse prepending ?

 How about creating an aggregate-address for network A with summary-only on
R3?

-----Original Message-----
From: Gyori Gabor
To: ccielab@groupstudy.com
Sent: 7/2/02 9:59 AM
Subject: AS path inverse prepending ?

Hi !

Here is an othe problem:

  AS1 AS2 AS3 AS4
   R1 ---- R2 --- R3 ---- R4

R1 is advertising network A towards R4.
The task is to solve that AS4 see network A with AS path does not
contain
AS1.
Configuration has to be done on R3 with the least configuration
statements.

Do You know any way to do it ?

Gabor



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