On Wed, May 27, 2015 at 04:10:45PM +0100, Daniel Caixinha wrote:
> I am using OVS in my research work and I plan to run a simulation where I
> create a high number of queues in each port (to support BW slicing) of each
> OVS instance. Can somebody please tell me what is the maximum number of
> queues per port in OVS? And what is the reason for that maximum?
OVS uses Linux's QoS, so the main limitation is Linux. I think that the
way that OVS configures Linux QoS limits it to about 65000 queues.
OpenFlow is limited to about 4 billion queues. That's mainly Justin
Pettit's fault, as the guy who said, "Four billion queues ought to be
enough for anyone":
https://mailman.stanford.edu/pipermail/openflow-spec/2009-August/000394.html
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