I agree with Raymond, FRR reads the same information of "bridge fdb show" and propagates that information to all other VTEP in the same VxLAN tag group in the network using BGP, so each bridge knows where every learned mac address is located.
@Raymond, if you ever get to work on that OVS FRR module then PM me, I would be interested in helping out. On Wed, Jun 6, 2018 at 6:44 AM, Raymond Burkholder <r...@oneunified.net> wrote: > On 06/06/2018 01:50 AM, Nicola Bucci wrote: > >> Does anybody know if it's possible to feed the fdb information from OVS >> into EVPN with FRR? >> > > FRR talks to the kernel bridging directly for the fdb information. I have > been thinking about writing a module for FRR to access OVS bridge > information, but that is quite a bit of work. There is a VNC interface > with FRR which purportedly does something similar. > > But, instead, even though it isn't the most the most performant, I use a > veth between an OVS bridge/vlan and a regular linux bridge. > > The linux bridge side of the link allows FRR/Zebra to see linux bridging > info which is fed from the OVS side of things. > > FRR/BGP/EVPN can then redistribute the learned MAC tables between hosts in > order to maintain the layer 3 network. > > Works like a charm for me. > > If you need configs, I could work up an example for the iproute2/bridge > commands as well as an RD based FRR config. > > -- > Raymond Burkholder > r...@oneunified.net > https://blog.raymond.burkholder.net > > -- > This message has been scanned for viruses and > dangerous content by MailScanner, and is > believed to be clean. > > _______________________________________________ > discuss mailing list > disc...@openvswitch.org > https://mail.openvswitch.org/mailman/listinfo/ovs-discuss >
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