On Fri, Dec 23, 2016 at 02:56:52PM +0000, Torgny Lindberg wrote: > On Wed Dec 21 17:27:05 UTC 2016, Ben Pfaff wrote: > > On Thu, Dec 01, 2016 at 02:01:59PM +0100, Torgny Lindberg wrote: > > > A reboot of one switch in an MC-LAG bond makes all bond links > > > to go down, causing a total connectivity loss for 3 seconds. > > > > > > Packet capture shows that spurious LACP PDUs are sent to OVS with > > > a different MAC address (partner system id) during the final > > > stages of the MC-LAG switch reboot. > > > > > > The current code selects a lead interface based on information > > > in the LACP PDU, regardless of its synchronization state. If a > > > non-synchronized interface is selected as the OVS lead interface > > > then all other interfaces are forced down as their stored partner > > > system id differs and the bond ends up with no working interface. > > > The bond recovers within three seconds after the last spurious > > > message. > > > > > > To avoid the problem, this commit requires a lead interface > > > to be synchronized. In case no synchronized interface exists, > > > the selection of lead interface is done as in the current code. > > > > > > Signed-off-by: Torgny Lindberg <torgny.lindberg at ericsson.com> > > > > I think I understand what's going on here now. I made some changes that > > better reflect my understanding: > > https://mail.openvswitch.org/pipermail/ovs-dev/2016- > > December/326567.html > > Does this work for you? If so, I'll apply it. > > > > Thanks, > > > > Ben. > > Hi Ben, > > > yes, the changed code gives the same result so it works for me.
Thanks! I applied this to master and backported it as far as branch-2.3. _______________________________________________ dev mailing list d...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-dev
