The feature you're interested in is the fast failover group type, which I believe was introduced in OpenFlow 1.1. This feature allows you to specify multiple output ports in a flow action. If the first port is live, the packet goes out the first port and the first port only. If the first port is down, and the second port is live, the packet will go out the second port and the second port only, etc.
-Spiros E. On Wed, Jun 4, 2014 at 10:18 AM, samantha Andares <[email protected]> wrote: > Hi, > > Does openvswitch allows an alternate routing mechanism in case of link > failure. > > Can a flow be deleted right away if the link is down and another path be > taken without intervention from the controller? > > Basically, I was wondering if it is possible to create 2 static flows > (same matching rules but different priorities) in order to create an > alternate routing scheme. If a link (interface) goes down, can it either be > removed from the flow table right away or can it stay but all the traffic > goes to another flow rule until we get the new set of flows from controller? > > I am aware of the expiry timers when there is no activity on a flow, but > this involves a new flow being sent from the controller and this is too > slow, i am looking for a "temporary" solution where packets can flow prior > to get any reply from the controller (like an alternate routing path until > we get new instruction from the controller). > > thanks to all, > > sam > > > > _______________________________________________ > discuss mailing list > [email protected] > http://openvswitch.org/mailman/listinfo/discuss > >
_______________________________________________ discuss mailing list [email protected] http://openvswitch.org/mailman/listinfo/discuss
