RE: AS PATH AND

From: Cassidy D. Smith (csmith@plannetconsulting.com)
Date: Fri Feb 21 2003 - 06:31:32 GMT-3


The problem is that they are in different order, so a single as-path acl
won't work. Have you tried doing multiple matches in a route-map ? In other
words you create to as-path acl's and then match on both, this should create
your "and". If you try this please let us know if it works..

-------example---------------------------

IP as-path access-list 1 _123_
IP as-path access-list 2 _456_

Route-Map 1-AND-2 permit 10
 match as-path 1 2

Route-Map 1-AND-2 deny 20

--------end example--------------------

Cassidy

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of Cezar
Fistik
Sent: Thursday, February 20, 2003 10:24 PM
To: ccielab@groupstudy.com
Subject: Re:

Hi,

I don't know if there si an "and" in regular expressions, never heard of
it. In order to match AS123 AND AS456 you can try using the following
expressoin:

123.*456

Regards,
Cezar Fistik

----- Original Message -----
From: "Ram Shummoogum" <rshummoo@ca.ibm.com>
To: <ccielab@groupstudy.com>
Sent: Thursday, February 20, 2003 10:34 PM

> Hi ALL:
>
>
> I need some help on this BGP regular expression.
>
>
> Make a router only accept routes that has transit AS 123 and AS 456. The
> keyword here is "and" and not or.
>
>
> Ex: {34 5 6 456 7 99 123 88}
> {45 123 89 456 7}
>
>
>
>
>
> I know "OR" is | but what is AND.
>
>
>
>
>
> Thanks for your help
>
>
> RAM



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