Are you using a switch that has the NXT_SET_PACKET_IN_FORMAT and NXT_FLOW_MOD_TABLE_ID Nicira extensions?
I'm not sure which version of Open vSwitch is the first to support these... maybe 1.8? Glancing at the code, I actually don't immediately see where the new packet-in format is actually used. You could try commenting out the lines which try to turn it on (around 81-83 of l2_nx.py in my local copy). (As a sidenote, you're supposed to pass --convert-packet-in to openflow.nicira. The docs show this, but it's not clear enough -- I'll fix it in carp. But if you're going to try to disable this feature anyway, it shouldn't matter.) -- Murphy On May 28, 2013, at 12:23 PM, Mayumi Park Campos wrote: > Hi all, > > I try to run pox with this line: > > ./pox.py log.level --DEBUG openflow.nicira forwarding.l2_nx > > And get this reply on the screen: > POX 0.1.0 (betta) / Copyright 2011-2013 James McCauley, et al. > INFO:forwarding.l2_nx:Simple NX switch running. > DEBUG:core:POX 0.1.0 (betta) going up... > DEBUG:core:Running on CPython (2.7.3/Aug 1 2012 05:16:07) > DEBUG:core:Platform is > Linux-3.2.0-41-generic-pae-i686-with-Ubuntu-12.04-precise > INFO:core:POX 0.1.0 (betta) is up. > DEBUG:openflow.of_01:Listening on 0.0.0.0:6633 > INFO:openflow.of_01:[00-50-04-9d-16-db 1] connected > ERROR:openflow.of_01:[00-50-04-9d-16-db 1] OpenFlow Error: > [00-50-04-9d-16-db 1] Error: header: > [00-50-04-9d-16-db 1] Error: version: 1 > [00-50-04-9d-16-db 1] Error: type: 1 (OFPT_ERROR) > [00-50-04-9d-16-db 1] Error: length: 32 > [00-50-04-9d-16-db 1] Error: xid: 6 > [00-50-04-9d-16-db 1] Error: type: OFPET_BAD_REQUEST (1) > [00-50-04-9d-16-db 1] Error: code: OFPBRC_BAD_SUBTYPE (4) > [00-50-04-9d-16-db 1] Error: datalen: 20 > [00-50-04-9d-16-db 1] Error: 0000: 01 04 00 14 00 00 00 06 00 00 23 20 00 00 > 00 10 ..........# .... > [00-50-04-9d-16-db 1] Error: 0010: 00 00 00 01 > .... > INFO:forwarding.l2_nx:[00-50-04-9d-16-db 1] ready > > And I lose communication with the hosts > > I don't see where is the problem and don't know how to correct it. > > Thanks in advance > >
