Hello,
I installed Openflow 1.3 complaint software and mininet following the
instructions mentioned on:-
https://github.com/CPqD/ofsoftswitch13/wiki/OpenFlow-1.3-Tutorial
But when I use this switch PacketIn Events are not raised. However
Connection up event handlers are still invoked.
This problem is encountered not only with my code but the sample l2switch
code. Though it works fine with ovsk switch PacketIn event handler is never
invoked with the software switch.
Does Ryu support ofsoftswitch? Or is there any other Opneflow 1.3 compliant
switch that I can use?
The code I used:-
class GroupTableTest(app_manager.RyuApp):
def __init__(self, *args, **kwargs):
super(GroupTableTest, self).__init__(*args, **kwargs)
@set_ev_cls(ofp_event.EventOFPStateChange,MAIN_DISPATCHER)
def _handle_ConnectionUp(self,ev):
print "Inside Connection up event."
print "Switch "+str(ev.datapath.id)+" is up!!"
datapath = ev.datapath
ofp = datapath.ofproto
ofp_parser = datapath.ofproto_parser
weight = 100
watch_port = 0
watch_group = 0
buckets = [ofp_parser.OFPBucket(weight, watch_port,
watch_group,[ofp_parser.OFPActionOutput(2, 2000)])]
buckets.append(ofp_parser.OFPBucket(weight, watch_port,
watch_group,[ofp_parser.OFPActionOutput(3, 2000)]))
group_id = 1
req = ofp_parser.OFPGroupMod(datapath,
ofp.OFPFC_ADD,ofp.OFPGT_SELECT, group_id, buckets)
datapath.send_msg(req)
print "Installed group table."
#Add action to output to group
@set_ev_cls(ofp_event.EventOFPPacketIn, MAIN_DISPATCHER)
def packet_in_handler(self, ev):
print "Inside packet_in handler."
msg = ev.msg
dp = msg.datapath
ofp = dp.ofproto
ofp_parser = dp.ofproto_parser
actions = [ofp_parser.OFPActionGroup(1)]
out = ofp_parser.OFPPacketOut(
datapath=dp, buffer_id=msg.buffer_id, in_port=msg.in_port,
actions=actions)
dp.send_msg(out)
The connection up event handlers are invoked but packet in event handler is
never invoked. Is there anything that I am doing wrong?
--
-Sameer
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