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New Member

BGP route not advertised

Good day...I have a quick question here I'm trying to advertised a 205.248.197.0 subnet but when I do a show ip bgp 205.248.197.0 I notice it says not advertised to any peer:

sh ip bgp 205.248.197.0

BGP routing table entry for 205.248.197.0/25, version 121282

Paths: (1 available, best #1, table Default-IP-Routing-Table, Advertisements suppressed by an aggregate.)

Not advertised to any peer

Local

172.19.205.5 from 0.0.0.0 (172.19.103.45)

Origin incomplete, metric 20, localpref 100, weight 32768, valid, sourced, best

what I'm actually trying to get to is a 205.248.197.152 address which by the way comes up with the same as above if I do a

show ip bgp 205.248.197.152

What am I missing here?

1 ACCEPTED SOLUTION

Accepted Solutions
Cisco Employee

Re: BGP route not advertised

Can you do a "show ip bgp 205.248.197.0 255.255.255.128" on the receiving router.

Regards,

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México 
Paseo de la Reforma 222 Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
12 REPLIES
Cisco Employee

Re: BGP route not advertised

Warren,

This prefix is suppressed due to an "aggregate no-summary" command being configured for an aggregate route covering this prefix.

Regards,

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México 
Paseo de la Reforma 222 Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
New Member

Re: BGP route not advertised

so if I take this Aggregate out then it should be good?

New Member

Re: BGP route not advertised

do you mean aggregate summary?

aggregate-address 205.248.197.0 255.255.255.0 summary-only

Cisco Employee

Re: BGP route not advertised

Yes, that is what I meant. 205.248.197.0/25 will be advertised if you take the aggregate command out of the configuration.

Regards,

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México 
Paseo de la Reforma 222 Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
New Member

Re: BGP route not advertised

as mentioned previously simply take out the take the aggregate command 205.248.197.0/25 will be advertised if you Take cxare Warren say hi to Carl for me

New Member

Re: BGP route not advertised

one more question I took out the aggregate as suggested and now I do see it being adversited

I go to the distant and see this now:

sh ip bgp 205.248.197.152

BGP routing table entry for 205.248.197.0/24, version 0

Paths: (1 available, no best path)

Not advertised to any peer

64643 7381 64940 64821, (aggregated by 64821 172.19.103.45), (received-only)

168.162.52.185 from 168.162.52.185 (10.128.191.82)

Origin IGP, localpref 100, valid, external, atomic-aggregate

Cisco Employee

Re: BGP route not advertised

Warren,

The received-only status means that the prefix is being filtered by an inbound policy. Make sure your inbound policy allows that prefix.

Regards,

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México 
Paseo de la Reforma 222 Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
Cisco Employee

Re: BGP route not advertised

Oops, I just figured that this is actually the aggregate. Can you do a "show ip bgp 205.248.197.0 255.255.255.128".

Regards,

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México 
Paseo de la Reforma 222 Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
Blue

Re: BGP route not advertised

Please post the entire BGP config, including any route maps and filters.

Victor

New Member

Re: BGP route not advertised

attached is the router config

Cisco Employee

Re: BGP route not advertised

Can you do a "show ip bgp 205.248.197.0 255.255.255.128" on the receiving router.

Regards,

Harold Ritter
Sr. Technical Leader
CCIE 4168 (R&S, SP)
harold@cisco.com
México móvil: +52 1 55 8312 4915
Cisco México 
Paseo de la Reforma 222 Piso 19
Cuauhtémoc, Juárez
Ciudad de México, 06600
México
New Member

Re: BGP route not advertised

Sorry guys for wasting your time, I didn't bother checking that I was receiving the proper routes in chicago. I checked to see and found out that even though I was advertising locally the BGP route in Chicago I wasn't accepting it. Once I did that all is good now. Sorry about that

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