On Mon, 17 Feb 2014 12:31:51 -0800
vinay pai <[email protected]> wrote:
> What I am trying to achieve is incrementally pass flow with the combination
> of matches. For Example, I first pass a flow with match on ethertype, next
> with match on ethertype and source MAC, then with match on ethertype,
> source MAC and destination MAC, and so on. I have added this small snipet
> of code below:
>
> while (count < 7):
>
> match = parser.OFPMatch(in_port=5097) ----> (creating here)
>
> if (count & 1):
> #match = parser.OFPMatch(in_port=5097, vlan_vid=vlan)
> match.vlan_vid=vlan -----> (modifying here)
> print 'match on vlan = ',vlan
>
> if (count & 2):
> #match = parser.OFPMatch(in_port=5097, eth_src=src)
> match.eth_src=src
> print 'match on Source MAC Address', src
>
> if (count & 4):
> #match = parser.OFPMatch(in_port=5097, eth_dst=dst)
> match.eth_dst=dst
> print 'match on Destination MAC Address', dst
>
> actions = [parser.OFPActionOutput(out_port)]
> print 'Flow to be added'
> self.add_flow(datapath, 1000, match, actions, table_id)
> time.sleep(2)
> count+=1
>
> This code only pushes match on in_port=5097 and action as out_port. Is
> there no way I can modify the match fields on the object once I have
> created other than by passing as parameter to parser.OFPMatch()? It would
> be great if you could point out a way of modifying the match object in the
> code above. I am sorry if I am ignoring something very obvious.
Instead of updating OFPMatch, how about something like the followings?
while (count < 7):
d = {'in_port': 5097}
if (count & 1):
d.update({'vlan_vid': vlan})
if (count & 2):
d.update({'eth_src': src})
....
match = parser.OFPMatch(**d)
self.add_flow(datapath, 1000, match, actions, table_id)
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