Thanks Ben. I was using 2.09. When I updated my git, I could see the command you suggested. But, unfortunately it was not working.
vdasari@mininet:~$ ovs-ofctl ofp-parse-pcap of.pcap vdasari@mininet:~$ On digging through the code, I found that there could be an issue with tcp_reader_run() or tcp_stream_lookup() and seq_no. "stream->seq_no is always 0". Once I force the code to return the "payload" by not checking for seq_no,, from tcp_reader_run() function, I could see the right output.And this logic is working for me. Probably there is something you had thought of regarding sequence numbers which I might be overlooking. vdasari@mininet:~/ovs$ ovs-ofctl ofp-parse-pcap of.pcap 192.168.56.53.6633 > 192.168.56.51.58836: NXT_SET_FLOW_FORMAT (xid=0x4): format=nxm -Vasu On Fri, Jan 31, 2014 at 5:50 PM, Ben Pfaff <b...@nicira.com> wrote: > The command you want is ofp-parse-pcap. It is only in the latest > version of OVS. > > On Fri, Jan 31, 2014 at 02:46:34PM -0500, Vasu Dasari wrote: > > Ben, > > > > I tried as per your suggestion, this is what I got: > > > > vdasari@mininet:~$ ovs-ofctl parse-pcap of.pcap > > > tcp,metadata=0,in_port=0,vlan_tci=0x0000,dl_src=08:00:27:90:d5:77,dl_dst=08:00:27:b9:12:86,nw_src=192.168.56.53,nw_dst=192.168.56.51,nw_tos=192,nw_ecn=0,nw_ttl=64,tp_src=6633,tp_dst=58836,tcp_flags=0x018 > > > > I was hoping to see TCP data content details, like OF, and vendor > specific > > information, etc. Do I need to give any more flags to get the detailed > > "vendor specific" information. > > > > The packet details from the tshark is as follows: > > > > vdasari@mininet:~/Developer/wireshark$ tshark -r ~/of.pcap -V > > . > > . > > OpenFlow 1.0 > > .000 0001 = Version: 1.0 (0x01) > > Type: OFPT_VENDOR (4) > > Length: 20 > > Transaction ID: 4 > > Message data not dissected yet > > > > > > Thanks, > > -Vasu > > > > > > On Fri, Jan 31, 2014 at 12:55 PM, Ben Pfaff <b...@nicira.com> wrote: > > > > > On Fri, Jan 31, 2014 at 12:30:11PM -0500, Vasu Dasari wrote: > > > > I am trying to see packets between controller and OVS on wireshark. > I am > > > > using wireshark version: 1.11.2 from the git repository on > wireshark.org > > > . > > > > The dissector is pretty good allowing me to decode openflow standard > > > > messages. But, when trying to decode OF messages of type > "OFPT_VENDOR", > > > > wireshark gives up dissecting the vendor portion. > > > > > > > > Can some point me to wireshark patch file (if any) to dissect nicira > > > vendor > > > > field further. If there is none, I can work on this. > > > > > > I don't know of any, but you can use "ovs-ofctl ofp-parse-pcap" in the > > > latest version of OVS to get equivalent output. > > > > > > _______________________________________________ > > discuss mailing list > > discuss@openvswitch.org > > http://openvswitch.org/mailman/listinfo/discuss > >
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