Re: BGP regex

From: John (jgarrison1@austin.rr.com)
Date: Wed Aug 13 2008 - 15:22:05 ART


Thanks for the help
  ----- Original Message -----
  From: Igor Manassypov
  To: John ; ccielab@groupstudy.com
  Sent: Wednesday, August 13, 2008 10:16 AM
  Subject: Re: BGP regex

  grouping without an action on it does not really make much sense...

  John <jgarrison1@austin.rr.com> wrote:
    Need a little explanation

    AS path access list 1 permit ^54(_[0-9]+)$

    AS path access list 2 permit ^54(_[0-9]+)?$

    To me the #1 should permit as 54 and one other as, but it doesn't. The
second
    one does allow as 54 and another as. I guess my question is do I need
    something like ? or + after the (_[0-9]+) to make the grouping valid? I
know
    I'm not asking in a very intelligable manner, but I find this a little
    confusing

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