RE: BGP REGEXP

From: <Keegan.Holley_at_sungard.com>
Date: Sun, 12 Jul 2009 10:42:27 -0400

I'm not an expert on regex, I hate the damn things honestly, but couldn't
you just do ^54_.*$ and match 54 and anything else or nothing else.
Note, this sounds like a lab question but if it isn't you should probably
permit some stuff before this line if 54 is a transit AS and you are using
it as a backup internet connection. Like ^54_(701)*_.*$ If this is just
a lab disregard.

Keegan Holley ? Network Engineer I ? SunGard Availability Services ?
401 North Broad St. Philadelphia, PA 19108 ? (215) 446-1242 ?
keegan.holley_at_sungard.com
Keeping People and Information Connected. ?
http://www.availability.sungard.com/

P Think before you print

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RE: BGP REGEXP

andrew
to:
'Ryan West', 'Chris Breece', 'Cisco certification'
07/11/09 09:58 PM

Sent by:
nobody_at_groupstudy.com
Please respond to "andrew"

Yes exactly, aren't we talking about directly connected customers?

cheers

-----Original Message-----
From: Ryan West [mailto:rwest_at_zyedge.com]
Sent: Sunday, July 12, 2009 11:50 AM
To: andrew; 'Chris Breece'; 'Cisco certification'
Subject: RE: BGP REGEXP

^54_[0-9]*$ shows all directly customers of AS54 including just AS54
announcements, but nothing beyond that.

-ryan

-----Original Message-----
From: andrew [mailto:andrew.coates_at_internode.on.net]
Sent: Saturday, July 11, 2009 6:40 PM
To: Ryan West; 'Chris Breece'; 'Cisco certification'
Subject: RE: BGP REGEXP

A straight ^54_[0-9]*$ will work as well

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
Ryan
West
Sent: Sunday, July 12, 2009 11:28 AM
To: Chris Breece; Cisco certification
Subject: RE: BGP REGEXP

Chris,

Either 's ip b q ^54_' or 's ip b q ^54(_[0-9]+)*$' should work for
customers and all their future customers.

-ryan

-----Original Message-----
From: nobody_at_groupstudy.com [mailto:nobody_at_groupstudy.com] On Behalf Of
Chris Breece
Sent: Saturday, July 11, 2009 6:13 PM
To: Cisco certification
Subject: Re: BGP REGEXP

Theres a way to do it if your customer or customers customer is prepending
too... but I am drawing a blank. Someone smart want to chime in? :P

On Sat, Jul 11, 2009 at 9:06 PM, Chris Breece <cbreece1_at_gmail.com> wrote:

> Man, I hate regex like no-bodies business... but try this...
>
> ^54(_[1-9]+)?$
> Test it out with "show ip bgp regex ^54(_[1-9]+)?$".
>
> When you type it in make sure to do control-v before you type in the ?
or
> IOS will do context senstive help on ya.
>
> Chris
>
>
>
>
> On Sat, Jul 11, 2009 at 12:53 PM, G2 <farawayguy_at_gmail.com> wrote:
>
>> Is there a regular expression that will match the following in one
line:
>>
>> -Routes originated in AS54
>> -Customers of AS54
>>
>> I know you can do one for each, but how would you do this in one
>> statement?
>>
>> Thanks,
>> Gary
>>
>>
>> Blogs and organic groups at http://www.ccie.net
>>
>> _______________________________________________________________________
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Received on Sun Jul 12 2009 - 10:42:27 ART

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