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Re: could you explain to me about bgp Regular expression posted 07/04/2007
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Yes, you are right.

On 7/4/07, Marko Milivojevic <markom@xxxxxxxxxxx> wrote:
>
> > ^([0-9]+)(_\1)*$
> >
> > This AS path list selects updates from the neighboring AS (with 2
> digits)
> > and with 0 or more repetions of itself.
>
> It is not constrained to two digits only. Regex "+" parameter just states
> that previous item can match "one or more times". To constrain match to
> two
> digits only, other form must used. It would look like this: "[0-9]{2}?".
> As
> far as I am aware, IOS doesn't support {n} limiter.