As you note, OpenFlow 1.0 doesn't specify a specific behavior, so it's up to the switch what it does -- if it's supported at all. Open vSwitch includes extensions for working with multiple controllers; you should check the OVS docs (and/or nicira-ext.h) for details.
I'm not positive if POX currently supports all of the multi-controller extensions, but it supports at least some of them, and the rest shouldn't be too hard to add. -- Murphy On Dec 9, 2013, at 7:18 AM, Silvia Fichera <fichera....@gmail.com> wrote: > Another question: > what is the switch behaviour when it is connected to multiple controllers? > Does it send a request to all controllers? > Here: http://archive.openflow.org/wk/index.php/OpenFlow_v1.0 I read that > there isn's a specific behaviour. > > Thanks again > > -- > Silvia Fichera
