[c-nsp] BGP doesn't advertise prefixes

Samol molasian at gmail.com
Tue Apr 28 23:17:39 EDT 2015


 here it is the config:

!Route-map

route-map EQUINIX-TRANSIT-OUT permit 5
 match ip address prefix-list CP-M21-PREPEND
 set as-path prepend 123 123 123
!
route-map EQUINIX-TRANSIT-OUT permit 10
 match community 500

route-map EQX-BGP-Originate permit 10
 set community 123:123 65501:24115 additive

!Prefix-list
!
ip prefix-list CP-M21-PREPEND seq 5 permit 123.0.73.0/24

!Community list

ip community-list 500 permit 123:123


!BGP protocol

router bgp 123
 neighbor EQUINIX-TRANSIT peer-group
 neighbor EQUINIX-TRANSIT remote-as 17819
 neighbor EQUINIX-TRANSIT update-source Vlan105
 neighbor 27.111.241.123 peer-group EQUINIX-TRANSIT

address-family ipv4
  neighbor EQUINIX-TRANSIT send-community
  neighbor EQUINIX-TRANSIT prefix-list BOGON in
  neighbor EQUINIX-TRANSIT route-map EQUINIX-TRANSIT-OUT out
  neighbor EQUINIX-TRANSIT maximum-prefix 600000 95
  neighbor 27.111.241.123 activate

  network 123.0.73.0 route-map EQX-BGP-Originate


!Static route

ip route 123.0.73.0 255.255.255.0 Null0 250


using show ip bgp route-map EQUINIX-TRANSIT-OUT result that rule match what
we want, but it doesn't advertise out !

Regards,

2015-04-28 19:35 GMT+07:00 Scott Granados <scott at granados-llc.net>:

> It could be a bug but most likely a configuration issue.  The bugs on the
> 65xx platform are normally more like the supervisor will crash when the BGP
> table counter reaches a certain threshold or similar to that not just the
> lack of advertisement to a single peer.  It’s possible but if you could
> post the relevant portions of your on fig that would probably yield better
> results.
>
> Thanks
>
>
> On Apr 28, 2015, at 5:59 AM, Samol <molasian at gmail.com> wrote:
>
> > Hi All,
> >
> > Weird issue of BGP running on:
> >
> > Cisco IOS Software, s72033_rp Software (s72033_rp-IPSERVICESK9_WAN-M),
> > Version 12.2(33)SXJ2, RELEASE SOFTWARE (fc4)
> >
> > cisco WS-C6503-E (R7000) processor (revision 1.3) with 983008K/65536K
> bytes
> > of memory.
> >
> > We did the configuration correctly and we applied on different peers.
> other
> > peers are advertising routes, but on peer is not. using "sh ip bgp
> > route-map X" , we can see that route-map is matching what we want,
> however,
> > " show ip bgp neighbors 1.2.3.4 advertised-routes " gives only one prefix
> > advertise out, and sometimes it doesn't advertise out either.
> >
> > Is there any known bug on this or anything else should I check ?
> >
> > Regards.
> >
> > --
> > 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
> > _______________________________________________
> > cisco-nsp mailing list  cisco-nsp at puck.nether.net
> > https://puck.nether.net/mailman/listinfo/cisco-nsp
> > archive at http://puck.nether.net/pipermail/cisco-nsp/
>
>


-- 
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


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