Hi, Yi, My switch is hardware switch. The app is written by myself. So buffer_id equal 0 means disabling buffering, am i right ?
On Wed, Aug 19, 2015 at 4:35 PM, Yi Tseng <a86487...@gmail.com> wrote: > 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 > -- Best Regards, Vinllen
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