Pointers please - OSPFv3 vs Cisco IOS XR

Elmar K. Bins elmi at noir.de
Wed Jun 3 15:44:09 CEST 2020


Hi Ondrej,

> Do not see any issues on BIRD side. It seems to me that Cisco just resets
> the exchange (by sending DBD flag I) when it should be done (or in Loading
> state):

I could not find any trace on the XR side, but I'll continue digging. I did
actually expect it to be an MTU issue, but could find no proof of that. I
also don't understand why OSPFv2 would work, but OSPFv3 would not.

> I suppose that this exchage repeats indefinetly and 'show ospf neighbors'
> on BIRD also shows the other side in ExStart/Exchange?

Actually, the routers show as ExStart/DR and ExStart/BDR, which is also strange.

Thank you anyway, if I find anything, I'll share. For the moment, it's back to
Quagga.

Elmar.


More information about the Bird-users mailing list