Thanks you so much :) Subject: Re: [pox-dev] Nicira errors From: [email protected] Date: Thu, 30 May 2013 10:31:59 -0700 CC: [email protected] To: [email protected]
I assume you mean you want to add a flow to a specific table. This feature is not available in OpenFlow 1.0. So you either need to use a higher version of OpenFlow (which POX doesn't support yet and OVS only recently has gained experimental support for), or using a Nicira extension. There are actually two different ways. I think for both of them (and definitely for the second one), you must first enable NXT_FLOW_MOD_TABLE_ID by sending an nx_flow_mod_table_id message to a switch. Once you've done that, you can: 1) Use nx_flow_mod. This is the version of flow_mod that uses Nicira Extended Match. 2) NXT_FLOW_MOD_TABLE_ID slightly modifies how normal ofp_flow_mods are interpreted, making one byte of the command field be the table ID. There's a version of ofp_flow_mod in the nicira module called ofp_flow_mod_table_id which adds a table_id field. -- Murphy On May 30, 2013, at 10:19 AM, Mayumi Park Campos wrote:I just have a question, if I want to add a flow per table I must use de nicira extension? Or there is a way using the other forwarding codes? Thanks :) From: [email protected] To: [email protected] CC: [email protected] Subject: RE: [pox-dev] Nicira errors Date: Thu, 30 May 2013 13:52:25 -0300 Thanks for the answers the problem was that I errase a line in the code by mistake Its already working fine Sorry for the troubles and thanks again Subject: Re: [pox-dev] Nicira errors From: [email protected] Date: Wed, 29 May 2013 12:47:08 -0700 CC: [email protected] To: [email protected] Are you sure you've got the upgraded version running? Just to make sure so we don't spend time chasing down a dead end, try running this component:http://www.noxathome.org/x/Murphy/switch_info.py If that does show that you've got the new version running, capture the control traffic using Wireshark/tcpdump or the openflow.debug component (which makes pcap trace files) and post it here. -- Murphy On May 29, 2013, at 11:17 AM, Mayumi Park Campos wrote:Hi, I change de ovs version to de 1.9.0 but I stil get the erro message ./pox.py log.level --DEBUG openflow.nicira --convert-packet-in forwarding.l2_nxPOX 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-preciseINFO:core:POX 0.1.0 (betta) is up.DEBUG:openflow.of_01:Listening on 0.0.0.0:6633INFO:openflow.of_01:[00-50-04-9d-16-db 1] connectedERROR: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: 68[00-50-04-9d-16-db 1] Error: xid: 10[00-50-04-9d-16-db 1] Error: type: OFPET_BAD_REQUEST (1)[00-50-04-9d-16-db 1] Error: code: OFPBRC_EPERM (5)[00-50-04-9d-16-db 1] Error: datalen: 56[00-50-04-9d-16-db 1] Error: 0000: 01 04 00 38 00 00 00 0a 00 00 23 20 00 00 00 0d ...8......# ....[00-50-04-9d-16-db 1] Error: 0010: 00 00 00 00 00 00 00 00 fe 00 00 00 00 00 00 01 ................[00-50-04-9d-16-db 1] Error: 0020: ff ff ff ff ff ff 00 00 00 00 00 00 00 00 00 00 ................[00-50-04-9d-16-db 1] Error: 0030: 00 00 00 08 ff fb 00 00 ........INFO:forwarding.l2_nx:[00-50-04-9d-16-db 1] ready The thing that I want to do is to install a flow per table so I'm trying to undestand how does this works Tkanks From: [email protected] To: [email protected] CC: [email protected] Subject: RE: [pox-dev] Nicira errors Date: Tue, 28 May 2013 16:52:47 -0300 Thanks Murphy, I'm using the ovs 1.4.6. So I think that would be the problem I'll change to one more recent and see if the problem is fix Thanks so much Subject: Re: [pox-dev] Nicira errors From: [email protected] Date: Tue, 28 May 2013 12:42:56 -0700 CC: [email protected] To: [email protected] 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-preciseINFO:core:POX 0.1.0 (betta) is up.DEBUG:openflow.of_01:Listening on 0.0.0.0:6633INFO:openflow.of_01:[00-50-04-9d-16-db 1] connectedERROR: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
