Hi all What is the expected/standard way to handle error messages to flow_mod requests?
If they are treated as SYNC messages, then my application would have to wait for an ack. But if the switch has happily accepted the flow_mod, it does not send back anything - causing my app to hang forever. If they are treated as ASYNC messages, then my application fires off a flow_mod and hopes all's well and goes about doing other things. Sometime later an async error message might be received. Now my app's in trouble since I have already done things I shouldn't have and rolling back can be messy. One workaround to this might be: Send a flow_mod message. Set socket.timeout for a second maybe and if nothing arrived yet, then we can safely assume all's well. But this seems to be a very bad hack since the app has to wait unnecessarily even if things have gone well. Any other suggestions ? regards Gopal Agrawal _______________________________________________ openflow-discuss mailing list openflow-discuss@lists.stanford.edu https://mailman.stanford.edu/mailman/listinfo/openflow-discuss
