Pointers please - OSPFv3 vs Cisco IOS XR

[Stefan Jakob]

Moin Elmi,

Can you please take pcap from both software stacks: Quagga and Bird?

Guess this should show the difference...

Rgds, SJ

On Wed, Jun 3, 2020 at 3:45 PM Elmar K. Bins <elmi at noir.de> wrote:
>
> 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.