On Fri, May 11, 2012 at 5:51 PM, Kyriakos Zarifis <[email protected]> wrote: > In order to make the switch proactively send stats when a flow is expired, > you'd need to change code on the switch. Even then, the controller would get > an unsolicited stats_reply message and probably get confused.
OpenFlow 1.0 already supports this if you ask for a flow removed message (section 5.4.2). The 'reason' field will indicate timeout versus deletion, and packet_count and byte_count will be set as they would on a stats message. -- Nick
