Thanks for your reply, Yamamoto. Thanks, Srinath
On 4/19/15, 10:01 PM, "YAMAMOTO Takashi" <[email protected]> wrote: >hi, > >> Hello, >> >> I知 new to openvswitch and ryu and am trying to write a simple flow >>matcher with openvswitch and ryu and I知 trying to match flows based on >>TCP 4 tuple. And the open flow version I知 using is 1.2. >> >> This is what my add_flow function looks like. >> >> def add_tcp_flow(self, dp, in_port, out_port, actions, >> eth_src=None, eth_dst=None, ip_src=None, ip_dst=None, >> tcp_src=None, tcp_dst=None): >> ofproto = dp.ofproto >> >> match = dp.ofproto_parser.OFPMatch(in_port=in_port, tcp_src=tcp_src, >> tcp_dst=tcp_dst, ipv4_src=ip_src, >> ipv4_dst=ip_dst) >> inst = [dp.ofproto_parser.OFPInstructionActions( >> ofproto.OFPIT_APPLY_ACTIONS, actions)] >> >> mod = dp.ofproto_parser.OFPFlowMod(datapath=dp, cookie=0, >> cookie_mask=0, table_id=0, command=ofproto.OFPFC_ADD, >> idle_timeout=0, hard_timeout=0, priority=0, >> buffer_id=ofproto.OFP_NO_BUFFER, out_port=out_port, >> out_group=ofproto.OFPG_ANY, flags=0, match=match, >> instructions=inst) >> dp.send_msg(mod) >> >> When I run this code, however, I get an asynchronous error thrown from >>the switch. >> >> (Pdb) p ev.msg >> >>OFPErrorMsg(code=9,data="\x03\x0e\x00p`\xcb'\xa0\x00\x00\x00\x00\x00\x00\ >>x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x >> >>00\x00\x00\x00\x00\x00\x00\xff\xff\xff\xff\x00\x00\x00\x03\xff\xff\xff\xf >>f\x00\x00\x00\x00\x00\x01\x00(\x80\x00\x00\x0 >> 4\x00\x00\x00\x04\x80\x00\x16\x04",type=4) >> >> I understand that this has an error type = 4 (OFPET_BAD_MATCH) and the >>code is 9 (OFPBMC_BAD_PREREQ). >> >> I知 not sure what prerequisite I知 missing in my flow add code. Can >>someone help me find this piece of information in the docs. > >it's about prereqs defined in the spec. >eg. you need eth_type=IPv4 match before matching ipv4_src, etc. >OpenFlow 1.2 spec p.37 has a table showing prereqs. > >YAMAMOTO Takashi > >> >> Thanks, >> Srinath ------------------------------------------------------------------------------ BPM Camp - Free Virtual Workshop May 6th at 10am PDT/1PM EDT Develop your own process in accordance with the BPMN 2 standard Learn Process modeling best practices with Bonita BPM through live exercises http://www.bonitasoft.com/be-part-of-it/events/bpm-camp-virtual- event?utm_ source=Sourceforge_BPM_Camp_5_6_15&utm_medium=email&utm_campaign=VA_SF _______________________________________________ Ryu-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ryu-devel
