From: Eric Phillips (eric@phillips.tc)
Date: Wed Jan 09 2008 - 23:48:04 ARST
^ means "the start of the string." So ^1$ will only match an AS that starts
in AS 1 and ends in AS 1.
_ means "start, end, or seperator." So _1$ will match an AS PATH of 1, of
13 2 1, of 2394 32 32 42 1, etc... As long as 1 is the last AS in the list
(which is actually the originating AS).
Hope that helps!
-Eric
On 1/9/08, Monica Belluci <mpls1979@gmail.com> wrote:
>
> what is difference between ^1$ and _1$ ?
> Both work same ?
>
> Nalini Roy
>
> On Jan 9, 2008 11:36 AM, shiran guez <shiranp3@gmail.com> wrote:
>
> > _1$ mean only originated in AS1 if you want originated or transited AS 1
> > so
> > it should be _1_
> >
> > if you want origin AS 1 and clients ^1_ if you want origin AS1 and/or
> one
> > client ^1_([0-9]+)?$
> >
> >
> >
> >
> > On Jan 9, 2008 4:31 AM, Athaide, Dwayne <DAthaide@eprod.com> wrote:
> >
> > > If you want to accept routes that have traversed or originated in AS 1
> > > would _1$ match only the routes that have originated in AS1?
> > >
> > >
> > >
> > > Thanks
> > >
> > >
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> >
> > --
> > Shiran Guez
> > MCSE CCNP NCE1
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> >
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>
> _______________________________________________________________________
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>
-- Eric M. Phillips Senior Network ConsultantLTI Information Technology http://www.ltiit.com 501 Avis Drive Ann Arbor, MI 48108
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