Hi,
On 2015年08月25日 14:18, muzixing.com wrote: > I do not mean to send the same packet to another controller.I have to build a > new lldp packet with self-defined information. What's more, I need to send > packetIn to controller, just like a switch, so we should use packetin not > packet out. Sorry, I misunderstood. Because Ryu does not have implementation for serializing Packet-In message, it is difficult to create Packet-In packet data. Maybe, you need to implement serialize() method into OFPPacketIn class. Thanks, Iwase > Thank you for your reply. > ---原始邮件--- > 发件人:"Yusuke Iwase"<[email protected]> > 发送时间:2015年8月25日 星期二 下午1:2 > 收件人:"15116983550"<[email protected]> > 抄送:"ryu-devel"<[email protected]> > 主题:Re: [Ryu-devel] LLDP packet parse error: LLDPUnknownFormat > Hi, > On 2015年08月25日 12:52, muzixing.com wrote: >> Hi all, >> I built an Packet_in packet with LLDP, and send it from a controller to >> another controller. When I parse the packet, I can get PacketIn packet with >> data. But the data is Not LLDP packet. >> When parse data ,I get LLDPUnknownFormat exception. The packet information >> show below. >> >> {'total_len': 87, 'xid': 0, 'msg_type': 10, 'data': >> '\xc2\x00\x00\x0e\x00\x00\x00\x00\x00\x00\x88\xcc\x02\x16\x07dpid:0000000000000001\x04\x05\x02\x00\x00\x00\x01\x06\x02\x00x\x12\x1b\x07domain_id:0000000000000002\x14\x05\x02\x00\x00\xff\xff\x00\x00', >> 'msg_len': 135, 'datapath': None, 'buffer_id': 4294967295L, 'reason': 1, >> 'version': 4, 'table_id': 0, 'cookie': 0, 'buf': <read-only buffer for >> 0x9dc2a10, size -1, offset 0 at 0x9e60980>, 'match': >> OFPMatch(oxm_fields={'in_port': 1})} >> data: 0xc2 0x0 0x0 0xe 0x0 0x0 0x0 0x0 0x0 0x0 0x88 0xcc 0x2 0x16 0x7 0x64 >> 0x70 0x69 0x64 0x3a 0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x30 >> 0x30 0x30 0x30 0x30 0x31 0x4 0x5 0x2 0x0 0x0 0x0 0x1 0x6 0x2 0x0 0x78 0x12 >> 0x1b 0x7 0x64 0x6f 0x6d 0x61 0x69 0x6e 0x5f 0x69 0x64 0x3a 0x30 0x30 0x30 >> 0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x30 0x32 0x14 0x5 >> 0x2 0x0 0x0 0xff 0xff 0x0 0x0 >> {'data': >> '\xc2\x00\x00\x0e\x00\x00\x00\x00\x00\x00\x88\xcc\x02\x16\x07dpid:0000000000000001\x04\x05\x02\x00\x00\x00\x01\x06\x02\x00x\x12\x1b\x07domain_id:0000000000000002\x14\x05\x02\x00\x00\xff\xff\x00\x00', >> 'protocols': >> [ethernet(dst='c2:00:00:0e:00:00',ethertype=534,src='00:00:00:00:88:cc'), >> llc(control=ControlFormatI(pf_bit=0,receive_sequence_number=52,send_sequence_number=56),dsap_addr=7,ssap_addr=100), >> >> 'd:0000000000000001\x04\x05\x02\x00\x00\x00\x01\x06\x02\x00x\x12\x1b\x07domain_id:0000000000000002\x14\x05\x02\x00\x00\xff\xff\x00\x00']} >> >> We can find out that there is LLC in protocols in protocols. >> The ethernet type is 534, which is the same with the LLDP chassis_id‘ s >> typelen：534. > How did you make OFPPacketOut? > If you want to set Packet-In data into Packet-Out data, > I think you need to set OFPPacketIn.data, which is raw packet data, into > OFPPacketOut.data. > e.g.) > @set_ev_cls(ofp_event.EventOFPPacketIn, MAIN_DISPATCHER) > def _packet_in_handler(self, ev): > msg = ev.msg > data = msg.data > ... > ... > out = parser.OFPPacketOut(..., data=data) # set OFPPacketIn.data into > OFPPacketOut.data > datapath.send_msg(out) > Thanks, > Iwase >> >> What should I do? >> >> Thank you for your time. >> >> >> ------------------ >> Distance 李呈 >> >> _____________________________________________________ >> School of Information and Communication Engineering >> Beijing University of Posts and Telecommunications >> Beijing 100876, PR China >> >> 北京邮电大学·信息与通信工程学院·通信工程 >> _____________________________________________________ >> Mobile Phone: >> (+86) 151-1698-3550 Beijing >> E-mail: >> [email protected] >> [email protected] >> Homepage: >> http://www.muzixing.com >> >> >> >> >> ------------------------------------------------------------------------------ >> >> >> >> _______________________________________________ >> Ryu-devel mailing list >> [email protected] >> https://lists.sourceforge.net/lists/listinfo/ryu-devel >> > ------------------------------------------------------------------------------ > _______________________________________________ > Ryu-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/ryu-devel > > > ------------------------------------------------------------------------------ > > > > _______________________________________________ > Ryu-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/ryu-devel > ------------------------------------------------------------------------------ _______________________________________________ Ryu-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ryu-devel
