False decoder error on provision 3800 KA.15.15.0006

Martin Cerveny — Sat, 02 Aug 2014 17:50:13 GMT

Hello.

When debug output is activated (3800 KA.15.15.0006):

debug openflow 
debug destination session

I am receiving errors (but message is processed):

0000:19:07:48.46 OPFL eOFNetTask:RX from tcp:192.168.56.7:6633: 0:
   OFPT_PACKET_OUT (OF 0x04) (xid=0x188e): ***decode error: OFPBRC_BAD_LEN***

I capture packet (xid=0x188e is 6286) (also attached PACKET_OUT.pcapng):

No.     Time               Source                Destination           Protocol Length Info
      1 18:47:54.312709000 192.168.56.7          192.168.56.104        OpenFlow 175    Type: OFPT_PACKET_OUT

Frame 1: 175 bytes on wire (1400 bits), 175 bytes captured (1400 bits) on interface 0
Ethernet II, Src: 08:00:27:3e:62:f4 (08:00:27:3e:62:f4), Dst: 10:60:4b:38:ec:a5 (10:60:4b:38:ec:a5)
Internet Protocol Version 4, Src: 192.168.56.7 (192.168.56.7), Dst: 192.168.56.104 (192.168.56.104)
Transmission Control Protocol, Src Port: 6633 (6633), Dst Port: 59053 (59053), Seq: 1, Ack: 1, Len: 109
OpenFlow 1.3
    Version: 1.3 (0x04)
    Type: OFPT_PACKET_OUT (13)
    Length: 109
    Transaction ID: 6286
    Buffer ID: OFP_NO_BUFFER (0xffffffff)
    In port: OFPP_CONTROLLER (0xfffffffd)
    Actions length: 16
    Pad: 000000000000
    Action
    Data
        Ethernet II, Src: 10:60:4b:38:ec:be (10:60:4b:38:ec:be), Dst: 01:1b:78:e9:7b:cd (01:1b:78:e9:7b:cd)
        Link Layer Discovery Protocol

I check specification ("OpenFlow Switch Specification Version 1.3.1 (Wire Protocol 0x04)" appendix A), but cannot find any error :-(

- TCP len = 109

- OF len = 109 = 24 (struct ofp_packet_out) + 16 (struct ofp_action_output) + data 69 (14 (L2 header) + 55 (LLDP))

Is it the minor bug (only debug output bug) in firmware or something is bad ?

Thanks, Martin Cerveny

Re: False decoder error on provision 3800 KA.15.15.0006

sdnindia — Fri, 08 Aug 2014 19:09:10 GMT

Hello Martin Cerveny,

Thanks for your query.
We will get back to you shortly.

Thanks,
HP SDN Team

Re: False decoder error on provision 3800 KA.15.15.0006

ScottReeve — Tue, 07 Oct 2014 19:26:40 GMT

Hello,

Can you please send the full debug output from the switch - starting at the creation of the flow.

Keep the same debug switches that you used.

And can you also include a wireshark capture of that same test?

Thank you,

Scott

Re: False decoder error on provision 3800 KA.15.15.0006

Martin Cerveny — Tue, 07 Oct 2014 19:57:44 GMT

Hello.

The same packet is captured by wireshark & switch debug output (no mode erros show) & packet trace by SDN VAN CTLR added in original post. I will not setup test enviroment near feature.

M.C>

topic Re: False decoder error on provision 3800 KA.15.15.0006 in Software Defined Networking

False decoder error on provision 3800 KA.15.15.0006

Re: False decoder error on provision 3800 KA.15.15.0006

Re: False decoder error on provision 3800 KA.15.15.0006

Re: False decoder error on provision 3800 KA.15.15.0006