Spiro Kourtessis spiro@vmware.com
Srini Seetharaman seethara@stanford.edu
Stephen Hemminger shemminger@vyatta.com
+Stephen Finucane stephen.finucane@intel.com
Takayuki HAMA t-hama@cb.jp.nec.com
Teemu Koponen koponen@nicira.com
Timothy Chen tchen@nicira.com
When a switch has more than one controller configured, only the
traffic to and from a single controller is output. If none of the
controllers is configured as a master or a slave (using a Nicira
-extension to OpenFlow), then a controller is chosen arbitrarily among
+extension to OpenFlow 1.0 or 1.1, or a standard request in OpenFlow
+1.2 or later), then a controller is chosen arbitrarily among
them. If there is a master controller, it is chosen; otherwise, if
there are any controllers that are not masters or slaves, one is
chosen arbitrarily; otherwise, a slave controller is chosen