[c-nsp] BGP doesn't advertise prefixes

Thu Apr 30 06:08:30 EDT 2015

Sorry for the confusion, but if you have no auto-summary in bgp then you
have to have in your example the same mask on your Null route and network
statement.

Try network 123.0.73.0 mask 255.255.255.0, then you can add policies if it
works.

On Thu, Apr 30, 2015 at 6:46 AM, Samol <molasian at gmail.com> wrote:

>   I already disabled auto summary with "   no auto-summary" command.
>
> Regards,
>
> 2015-04-29 19:40 GMT+07:00 Sandor Rozsa <rozsa.sandor.gyula at gmail.com>:
>
>> I assume you haven't enabled auto summary for the BGP. In this case based
>> on what you've written, the announcement of your 123.0.73.0/24 should
>> have the correct mask in the bgp network statement.
>>
>> >>> network 123.0.73.0 mask 255.255.255.0 route-map EQX-BGP-Originate
>>
>>
>> !Static route
>>
>> ip route 123.0.73.0 255.255.255.0 Null0 250
>>
>> On Wed, Apr 29, 2015 at 5:17 AM, Samol <molasian at gmail.com> wrote:
>>
>>>  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
>>> _______________________________________________
>>> 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
>