RE: BGP REGULAR EXPRESSION

From: Dennis Hartmann (dhartma5@optonline.net)
Date: Sun Feb 26 2006 - 11:59:27 GMT-3


        If a BGP peer wanted to block any AS string of more than 10 AS hops,
what would be the regular expression?

        10 or less AS instances, but no more. The AS can not be identified.
The Regexp must be generic enough to match any AS.

        Thanks.

Dennis J. Hartmann
CCIE# 15651
White Pine Communications
CCVP/CCSI/CCIP/CCNP/MCSE

 

-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
magmax
Sent: Sunday, February 26, 2006 6:06 AM
To: 'R&S CCIE GroupStudy'
Cc: comserv@groupstudy.com
Subject: BGP REGULAR EXPRESSION

Guys,

Does anyone know where regular expression are documented in Cisco
documentation DVD for ccie lab

One more question do you know any good reference for regular expression
which will make complex expression easier to understand and what you need to
hit before you can type? In as-path list.

Example

([1-9]+)?

Ubaid



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