What you are asking for seems to be a vPC (virtual port channel, aka MLAG) between switch 1 and switch2.
Thanks. On Mon, Aug 6, 2012 at 8:02 AM, Frido Roose <fr.ro...@gmail.com> wrote: > Hello, > > Is it possible to create an active-backup bond on top of a balance-slb > bond in openvswitch? > > This is the situation: > 1 bridge: br0 > eth0 => physical switch1 > eth1 => physical switch1 (same switch or stack) > eth2 => physical switch2 > eth3 => physical switch2 (same or stack) > > ______ __________ > | eth0 |------------| | > ------ | | > (slb bond0) | switch1 |---- > ______ | (active) | > | eth1 |------------| | > ------ ---------- > > ______ __________ > | eth2 |------------| | > ------ | | > (slb bond1) | switch2 |---- > ______ | (passive)| > | eth3 |------------| | > ------ ---------- > > > bond2 would then be an active-backup bond with a port on br0 and having > bond0 and bond1 as its interfaces > > The idea is that one could create a balance-slb bond0 using eth0 and eth1 > and another bond1 with eth2 and eth3 on a different switch. > If you could create another bond2 on top of bond0 and bond1, a failover > could happen to the other switch, while still having load balancing. > Of course, bond2 would then have to be able to detect if bond0 is down and > reroute traffic over bond1. > > The goal is simple: having HA while not being limited by the 1Gbit > bandwidth of a single interface as this would be a KVM host with several > high-bandwidth guests. > With the above setup, 2Gbit would be available in a failover setup - if > possible at all. > > Or is this a situation that requires STP to find the right path? Like > having bond0 and bond1 as described above, and have STP enabled to > determine which path to use. > > A push in the right direction would be great... > Frido Roose > > > _______________________________________________ > discuss mailing list > discuss@openvswitch.org > http://openvswitch.org/mailman/listinfo/discuss > >
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