BGP dynamic peers not working after upgrade to Everest

[exnerd]

Hello, I have upgraded route reflector in private MPLS network from IOS XE 3.16.5 to Everest 16.6.5 release. After upgrade, dynamic BGP peers did not connect to RR. In debug, I see mesaages such as:

004668: Mar 10 02:07:02.382 MET: BGP:DN: peer-group PE-UWAN is not activated in any af for dynamic neighbor

The peer-group is activated in vpnv4 address family. With old IOS, the same config works ok, so I had to downgrade back. Anybody having the same problem?

Thanks,

David

[Jaderson Pessoa]

Hello,

Try disable and enable again the RR in one router in old version. It sounds like a bug.

[exnerd]

Yes, after downgrade, everything works again, but the end customer has reason to upgrade to Everest.

[Jaderson Pessoa]

I understand. 

After upgrade are you reset bgp connection? 

Because, there is a bug reported here, mentioning it: https://bst.cloudapps.cisco.com/bugsearch/bug/CSCtj67572/?rfs=iqvred

If you you already reset bgp connection, try it running at least of two routers at the same IOS version.

[exnerd]

After upgrade, the new connections were not established, so there is nothing to reset.

David