Well, it doesn't look like you're actually passing the dict to
send_openflow_packet(), so I suspect that it isn't the problem.
Have you tried printing the contents of the dictionary at the start and then
again at the end of this function, to see if it is changed inside sendPADI()
or from somewhere else?
-- Murphy
On Friday, May 20, 2011 09:05:32 AM karim torkmen wrote:
> Hi,
>
> i am trying to send a packet through the send_openflow_packet method, to
> send the packet i do some processing on dict saved as a global variable
> on the form dict {key:[v1,v2],v3,v4}.
> When i send the packet the first time everything goes well, but after
> the second time, the dict form changes and it becomes dict {key:[v1,v2]}
> which rises an index error. Here is a snippet of the sending packet code:
>
>
> def sendPADI(self):
> ppp_padi = PPPoE()
> ppp_padi.type=1
> ppp_padi.code =9
> print "the ppp packet is "
> print str(ppp_padi.type)
> eth =Ethernet()
> eth.src = "\x3e\xde\x23\x4b\x97\x48"
> eth.dst = "\x5a\x9d\xd0\x2f\x13\x02" #
> "\xff\xff\xff\xff\xff\xff"
> eth.type = 34915
> eth.data = ppp_padi
> #return eth
> self.send_openflow_packet(dpid, str(eth),
> [[openflow.OFPAT_OUTPUT [0,port]]],openflow.OFPP_NONE)
> where dpid , port and mac addresses are retrieved from the dict.
>
> Could it be a bug in the send_openflow_packet method.
> Any help is appreciated.
> Regards,
> Karim
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