Re: Regular Expression ^$

From: Wouter Prins <wp_at_null0.nl>
Date: Fri, 13 Aug 2010 12:09:07 +0200

Hi Prakash,

With ^$ you're matching empty AS-paths, matching only prefixes
originating within your AS (these are not prepended if you forget
about confederations). You're creating a bgp stub with filters like
this, offering no transit for instance.

On 13 August 2010 11:57, Prakash Kalsaria <kalsaria.prakash_at_gmail.com> wrote:
> Regular expression
>
> ^ ----Start of string
>
> $ -- End of String
>
> what will be matched if i as-path access-list 111 permit ^$
>
> every AS OR Any AS
>
>
>
> Regards;
> Prakash
> http://prakashkalsaria.wordpress.com
>
>
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-- 
Wouter Prins
wp_at_null0.nl
CCIE #25628
Blogs and organic groups at http://www.ccie.net
Received on Fri Aug 13 2010 - 12:09:07 ART

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