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Re: could you explain to me about bgp Regular expression posted 07/04/2007
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^([0-9]+)(_\1)*$ This AS path list selects updates from the neighboring AS (with 2 digits) and with 0 or more repetions of itself. Example 01_01 Eample 99_99 The AS repeats in the above examples which means AS Prepending has been done. Cheers Vijay On 7/4/07, Mike Hwang <empires@xxxxxxxxxx> wrote: > > Hi ! folks > > I didn't know below regular expression. > Pls. explain to me for example... > > Thanks > Mike > > ------------------------------------------------- > > ip as-path access-list 101 permit ^([0-9]+)(_\1)*$ > > _______________________________________________________________________ > Subscription information may be found at: > http://www.groupstudy.com/list/CCIELab.html
