Hi What switch(ovs? LINE? or real hardware?) you use?
Did you use simple_switch_13? simple_switch_13 use OFPCML_NO_BUFFER for packet in (line 47) -- Yi 2015-08-19 16:07 GMT+08:00 Vinllen Chen <cvinl...@gmail.com>: > Hi, Yi, > > Do you kown the reason that the buffer_id of message is always 0 ? Does it > means that the switch disable the buffering ? > > Thankyou verymuch. > > On Wed, Aug 19, 2015 at 3:34 PM, Vinllen Chen <cvinl...@gmail.com> wrote: > >> Aha, It helped me, thankyou Yi ^_^ >> >> On Wed, Aug 19, 2015 at 3:13 PM, Yi Tseng <a86487...@gmail.com> wrote: >> >>> Hi >>> >>> "data" should be None if you want to use buffer id. >>> >>> so the code should look like this: >>> >>> out = datapath.ofproto_parser.OFPPacketOut( >>> datapath = datapath, >>> buffer_id = msg.buffer_id, >>> in_port = datapath.ofproto.OFPP_CONTROLLER, >>> actions = actions >>> ) >>> >>> -- >>> Yi >>> >>> 2015-08-19 15:02 GMT+08:00 Vinllen Chen <cvinl...@gmail.com>: >>> >>>> Hi, all, >>>> >>>> I want to send packet-out message with buffer_id to let the packet to >>>> be reprocess to rego through the pipeline: >>>> actions = [] >>>> >>>> actions.append(datapath.ofproto_parser.OFPActionOutput( >>>> datapath.ofproto.OFPP_TABLE) >>>> ) >>>> >>>> out = datapath.ofproto_parser.OFPPacketOut( >>>> datapath = datapath, >>>> buffer_id = msg.buffer_id, >>>> #buffer_id = datapath.ofproto.OFP_NO_BUFFER, >>>> in_port = datapath.ofproto.OFPP_CONTROLLER, >>>> actions = actions, >>>> data = pkt.data >>>> ) >>>> datapath.send_msg(out) >>>> >>>> The error shows: >>>> File >>>> "/usr/local/python2.7.6/lib/python2.7/site-packages/ryu/ofproto/ofproto_v1_3_parser.py", >>>> line 2384, in _serialize_body >>>> assert self.buffer_id == 0xffffffff >>>> >>>> It looks like the buffer_id must be NO_BUFFER, but the packet with >>>> specify buffer_id is allowed in openflow spec. >>>> So how to solve this problem ? Thankyou >>>> -- >>>> Best Regards, >>>> Vinllen >>>> >>>> >>>> ------------------------------------------------------------------------------ >>>> >>>> _______________________________________________ >>>> Ryu-devel mailing list >>>> Ryu-devel@lists.sourceforge.net >>>> https://lists.sourceforge.net/lists/listinfo/ryu-devel >>>> >>>> >>> >>> >>> -- >>> Yi Tseng (a.k.a Takeshi) >>> Taiwan National Chiao Tung University >>> Department of Computer Science >>> W2CNLab >>> >>> http://blog.takeshi.tw >>> >> >> >> >> -- >> Best Regards, >> Vinllen >> > > > > -- > Best Regards, > Vinllen > -- Yi Tseng (a.k.a Takeshi) Taiwan National Chiao Tung University Department of Computer Science W2CNLab http://blog.takeshi.tw
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