Re: [isp-bgp] anybody tell me what is going on here?

[Pete Templin <petelists@...>]

Bob Hrbek wrote:
> OMA2621CX#sho ip bgp paths 7018
> Address    Hash Refcount Metric Path
> 0x83411868  887        0      0 14710 22773 7018 16794 i
> 0x83415C64 1772        0      0 14710 22773 7018 209 721 i
> 0x83408BB0 2035        0      0 14710 22773 7018 701 14551 23414 i
> 0x83413910 2990        0      0 14710 22773 7018 6467 i
> 0x8341738C 3391        0      0 14710 22773 7018 209 721 27088 i
>
> Why would the AS Path end with an AS other than 7018?
core1-dlls#sh ip b pa ?
  LINE  A regular-expression to match the BGP AS paths
  |     Output modifiers
  <cr>

core1-dlls#

You've entered the regular expression 7018.  Your router has shown you 
the paths that match that regular expression.

If you want to match a destination of 7018, you should probably use a RE 
of _7018$, as someone else has pointed out.  You should also frame the 
7018 if you want paths through AT&T as _7018_, as your original RE might 
match AS 17018, 27018, etc.

Check the IOS 12.2 documentation, Configuration Guides and Command 
References, Terminal Services, Appendices for the chapter about regular 
expressions.

pt





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