Ah, I think I found the problem. Each time I added a flow I incremented
the vlan id. I assumed that the vlan id could take on all 16-bit
unsigned values, but after some reading I found out that switches use a
max vlan id of 4096. Open vSwitch starts up with 8 flows, giving my
magic number of 4104.
By the way, what are those 8 flows used for?
Thanks,
-- Derek
On 03/10/2011 12:08 AM, Ben Pfaff wrote:
On Tue, Mar 8, 2011 at 10:35 PM, Derek Cormier
<[email protected]> wrote:
I'm adding tens of thousands of flows to openvswitch. While they are adding
I am monitoring ovs-ofctl dump-tables. The active count seems to stop at
4104. Doing a table stats request also shows this number. Is this a bug? Is
there another way to see how many flows are on the switch?
It sounds like some of your flows are actually so similar that OVS
(and OpenFlow)
consider them to be the same, so that one of the new flows in fact replaces one
of the old flows.
I don't think that another way to see the flows, if there is one, is likely to
show different results.
This isn't a known bug in OVS. We have internal stress test results that run
OVS with hundreds of thousands of flows.
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