[c-nsp] BGP doesn't advertise prefixes

[Samol]

Thanks Gert for the clues. I went thru rule again and below is the rules
applied to our peer.

  neighbor EQUINIX-TRANSIT prefix-list BOGON in
  neighbor EQUINIX-TRANSIT route-map EQUINIX-TRANSIT-IN in
  neighbor EQUINIX-TRANSIT route-map *EQUINIX-TRANSIT-OUT* out


rtr#sh route-map *EQUINIX-TRANSIT-OUT*
route-map EQUINIX-TRANSIT-OUT, permit, sequence 5
  Match clauses:
    ip address prefix-lists: *CP-M21-PREPEND*
  Set clauses:
    as-path prepend 123 123 123
  Policy routing matches: 0 packets, 0 bytes
route-map EQUINIX-TRANSIT-OUT, permit, sequence 10
  Match clauses:
    community (community-list filter): 500
  Set clauses:
  Policy routing matches: 0 packets, 0 bytes

rtr#sh ip prefix-list *CP-M21-PREPEND*
ip prefix-list CP-M21-PREPEND: 6 entries
   seq 5 permit 123.0.73.0/24
   seq 10 permit x.x.a.0/24
   seq 15 permit x.x.b.0/24
   seq 16 permit x.x.c.0/24
   seq 20 permit x.x.d.0/24
   seq 25 permit x.x.e.0/24

rtr#sh ip community-list 500
Community (expanded) access list 500
     permit *123:123*

rtr#sh ip bgp 123.0.73.0 | in Com
      Community: *123:123* 65501:24115


As per this rule, the route 123.0.73.0/24 ( sorry for the change of IP and
hidden,but this would be preferred), should match with route-map seq 5 with
prefix-list seq 5 as well. We have no other rules attached to this peer in
the outbound direction.

Regards,

2015-04-30 21:56 GMT+07:00 Gert Doering <gert at greenie.muc.de>:

> Hi,
>
> On Thu, Apr 30, 2015 at 09:49:33PM +0700, Samol wrote:
> > thanks for advice. I will double check. probably need the fresh eyes to
> > look into it. but by using the command as below, could we say that the
> rule
> > is correctly matched?
>
> Yes, but it is not the only criteria - you could have a filter-list,
> prefix-list or anything else on the peer that prevents announcement.
>
> gert
> --
> USENET is *not* the non-clickable part of WWW!
>                                                            //
> www.muc.de/~gert/
> Gert Doering - Munich, Germany
> gert at greenie.muc.de
> fax: +49-89-35655025
> gert at net.informatik.tu-muenchen.de
>



-- 
Samol Khoeurn
(855) 077 55 64 02 / (855) 070 52 53 46
Network Engineer
Cisco: CCNA/CCNP SP/CCIP/
Juniper: JNCIA/JTNOC/JNCIS-ENT,SP,SEC/JNCIP-ENT,SP
Blog: http://thesaltedegg.net
www.linkedin.com/in/samolkhoeurn