[ovs-discuss] Priority of flows in openvswitch code

Ben Pfaff blp at nicira.com
Sun Mar 22 02:08:38 UTC 2015

On Sat, Mar 21, 2015 at 11:02:28PM +0530, Sumit Paliwal wrote:
> I've a question about the possibility of implementing a particular method
> in the openvswitch.
> I'm sending 2 different flows for same source-destination pair with
> different priority values from controller to switch. Now I want to switch
> between these flows( Sending packets through higher priority flow for first
> few packets and than through lower priority flow ).
> So as I've come to know by our discussion, that it is not even possible to
> store 2 flows in the kernel implementation, so there is no possibility of
> the above scenario in that case.
> Now, My question is, Can that be done in openvswitch? If yes, kindly guide
> me in this regard.

You can change the OpenFlow flow table at any time, using OpenFlow.  OVS
will then update the kernel flow table.

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