Ben Pfaff wrote:
On Sun, Mar 13, 2011 at 11:12 AM, Georgios Androulidakis
<[email protected]> wrote:
1) Is there a limit on the number of flows that can be held in the Flow
Table?
Is this related to the implementation e.g. software switch vs. hardware (NEC
IP8800/S3640) ?
Yes and yes.
First of all, thank you for your quick answer.
I am particularly interested in the limit that the NEC switch has. Do
you know what is the limit for a flow table that has flows without
wildcards?
Thanks,
George
2) Is it possible to configure the Flow Table to send a statistics message
to the controller for a particular flow when it is about to expire
(something similar to what Cisco NetFlow does) ?
Yes. Turn on "flow removed" messages.
3) Is it possible to periodically export the full flow table to the
controller ?
Yes. Use a "flow statistics" query message.
4) Can I query the flow table using the values of counters in order to get
statistics for specific flows.
i.e. get me the flows that have 20 packets?
No.
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