Hi, I tried to use Flowvisor to run with multiple OpenFlow controllers. However I found it will have problems when I do a routing in fully mesh networks.(with spanning_tree protocol(STP)) .
Following is the my exepriment and result under Mininet: Without FlowVisor, the mininet network is a 4sw-4host fully meshed networks and each host connects to a switch. To do the shoretest path and avoid loop, in my controller ( POX) I run l2_multi and spanning_tree components. Finally we pingpair the hosts and they work. Now, I want to insert flowvisor between Mininet and POX controller. In this case, Mininet points to flowwvisor and flovisor has a slice which points to the POX controller. This time the pingpair won't work because it seems that the STP cannot work properly. (But as far as I know, inerting a flowvisor won't affect anything, it shouldn't have the influence on the controller's applications). Until now, I only have problems in fully mesh networks which must have STP. For other Mininet networks( e.g. linear topology), inserting flowvisor between the controller and Mininet works fine. Note: Assume my controller running STP and l2_multi is on 192.168.56.102:6789 I have the following settings: fvctl createSlice slice1 tcp:192.168.56.102:6789 1...@hotmail.com (point to controller) fvctl addFlowSpace any 10 any Slice:slice1=7 Then run mininet which points to Flowvisor. Any advice? Thanks very much. Weiyang _______________________________________________ openflow-discuss mailing list openflow-discuss@lists.stanford.edu https://mailman.stanford.edu/mailman/listinfo/openflow-discuss
