Hello,
Dear Murphy
Yes I am trying to increase the VLAN tag to be 6 bytes. I have modified the
vlan code on vlan.py under pox directory
how can i do the same for the switch, I just need to increase the size nothing
else :-).
Regards,
Eng Amer Alghadhban
COE
SANS-GCFW
CEH, SCNP, CCNA
Subject: Re: Error in openflow
From: murphy.mccau...@gmail.com
Date: Sun, 1 Feb 2015 12:45:40 -0800
CC: pox-dev@lists.noxrepo.org
To: amer7...@hotmail.com
Are you saying that you're altering the OpenFlow protocol so that it can
specify VLAN tags larger than two bytes? And modifying a switch so that it can
match and probably insert and remove these larger VLAN tags? (If so, I'd have
thought that using VXLAN would be an easier way or that using an extension
would be cleaner, but that's another issue.)
So you're getting an error from the switch saying that it thinks you've sent it
a flow-mod with the emergency flag *and* timeouts set, which isn't allowed.
Assuming that you're not trying to set an emergency flow, the most likely
explanation here is that the flow-mod is either being constructed wrong or
parsed wrong. If you're modifying the match structure to accommodate larger
VLAN tags, make sure you've modified it the same way on both the switch and
controller.
-- Murphy
On Feb 1, 2015, at 3:35 AM, AMER <amer7...@hotmail.com> wrote:Dear all
I am using POX carpI am receiving this error
[00-00-00-00-00-02 143] Error: header:[00-00-00-00-00-02 143] Error: version:
1[00-00-00-00-00-02 143] Error: type: 1 (OFPT_ERROR)[00-00-00-00-00-02 143]
Error: length: 76[00-00-00-00-00-02 143] Error: xid: 719[00-00-00-00-00-02 143]
Error: type: OFPET_FLOW_MOD_FAILED (3)[00-00-00-00-00-02 143] Error: code:
OFPFMFC_BAD_EMERG_TIMEOUT (3)[00-00-00-00-00-02 143] Error: datalen:
64[00-00-00-00-00-02 143] Error: 0000: 01 0e 00 48 00 00 02 cf 00 10 00 1f 00
00 00 00 |...H............|[00-00-00-00-00-02 143] Error: 0010: 00 00 00 00 00
00 00 00 00 00 4e 6f 6e 65 00 00 |..........None..|[00-00-00-00-00-02 143]
Error: 0020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
|................|[00-00-00-00-00-02 143] Error: 0030: 00 00 00 00 00 00 00 00
00 00 00 00 00 03 00 00
|................|INFO:openflow.of_01:[00-00-00-00-00-01 144]
closedINFO:openflow.of_01:[00-00-00-00-00-02 143] closed
I am trying to extend the vlan header size, sorted almost all errors but
finally I am facing this and I do not understand it.
Best regards,Amer
Eng Amer Alghadhban
COE
SANS-GCFW
CEH, SCNP, CCNA
