12-02-2008 07:26 AM - edited 03-04-2019 12:34 AM
For a mistake I've forgot a non-existent inbound route-map applied to a BGP neighbor and this router has not been receiving any advertisements from this neighbor.
So I need to make sure this issue is caused by the non-existent route-map or it could be related to some trouble on the BGP neighbor itself.
Can you please help in order to clarify what is the behavior of the route-map on this situation?
12-02-2008 08:04 AM
Fernando,
The advertise-map does not prevent the router from receiving updates from the neighbor. Do you have any other filter apply to this neighbor? Is the neighbor sending updates? You can do a "show ip bgp nei x.x.x.x" to see if any prefixes from peers are denied by policy:
Outbound Inbound
Local Policy Denied Prefixes: -------- -------
route-map: 0 1
Bestpath from this peer: 1 n/a
Total: 1 1
Number of NLRIs in the update sent: max 0, min 0
Regards
12-02-2008 08:14 AM
The currently config on the CE router is:
!
router bgp 1
no synchronization
bgp log-neighbor-changes
network 0.0.0.0
network 10.10.254.156 mask 255.255.255.252
network 10.164.79.244 mask 255.255.255.252
neighbor 10.164.79.245 remote-as 65000
neighbor 10.164.79.245 send-community
neighbor 10.164.79.245 default-originate
neighbor 10.164.79.245 soft-reconfiguration inbound
neighbor 10.164.79.245 route-map deny_default in
!
This router has been advertising routes to the PE successfully, but unfortunately it is not receiving any one from the PE.
12-02-2008 10:24 AM
Fernando,
Sorry about the confusion. I clearly misunderstood your original question. I though you were referring to an advertise-map/non-exist-map.
In your case, the fact that the route-map is non-existent will cause all updates to be denied. That explains why the CE is not accepting any routes from the PE.
Regards
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