Re: Pointers please - OSPFv3 vs Cisco IOS XR

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.