A regular expression to find equal length paths (or unequal)

[dogfugitive]

Hi all.

Has anyone got a clue as to whether it is possible to construct a regular expression to show only those prefixes who have an equal (or unequal) number of AS hops in their paths. These prefixes are coming from 2 different ISPs so may differ in terms of actual AS path, but that doesn't matter, it's the number of AS traversed I care about.

Thanks in advance, kind regards.

[Harold Ritter]

My previous regexp was only taking into account ibgp learnt prefixes ("i").

This one will cope with both eBGP and iBGP learnt prefixes:

sh ip bgp quote-regexp "23456" | incl \* [i, ][0-9]+|>

Hope this helps,

[milan.kulik]

Hi Harold,

THANKS!

That's exactly what I need!

I see I have to learn a lot how to work with the regular expessions...

BR,

Milan