Hi all,
I am not sure if this is an issue with my configuration, HP, or nox, but here
is the issue... when I run multiple openflow instances in an HP switch, the two
instances seem to fight over the same dpid in nox.
First, enable only one instance...
00033|openflow|DBG:Passive tcp interface bound to port 6633
00034|nox|INFO:nox bootstrap complete
00035|openflow|DBG:Passive tcp interface received connection
00036|openflow|DBG:stream: negotiated OpenFlow version 0x97 (we support
versions 0x97 to 0x97 inclusive, peer no later than version 0x97)
00037|nox|DBG:Success sending in 'sending switch config'
00038|nox|DBG:Success sending in 'receiving features reply'
00039|nox|DBG:Success receiving in 'receiving features reply'
00040|nox|DBG:Success sending in 'receiving ofmp capability reply'
00041|nox|DBG:Success receiving in 'receiving ofmp capability reply'
00042|nox|DBG:Datapath f500019bbb30d00 sent error in response to capability
reply, assuming no management support
00043|nox|DBG:No switch auth module registered, auto-approving switch
00044|nox|DBG:Registering switch with DPID = 19bbb30d00
00045|openflow-event|DBG:received packet-in event from 0019bbb30d00 (len:64)
00046|switch|DBG:learned that 00:0a:41:ad:c1:81 is on datapath 0019bbb30d00
port 18
00047|openflow-event|DBG:received packet-in event from 0019bbb30d00 (len:64)
00048|openflow-event|DBG:received packet-in event from 0019bbb30d00 (len:64)
00049|openflow-event|DBG:received packet-in event from 0019bbb30d00 (len:64)
00050|openflow-event|DBG:received packet-in event from 0019bbb30d00 (len:64)
00051|openflow-event|DBG:received packet-in event from 0019bbb30d00 (len:64)
Enable the second instance on the HP switch....
00052|openflow|DBG:Passive tcp interface received connection
00053|openflow|DBG:stream: negotiated OpenFlow version 0x97 (we support
versions 0x97 to 0x97 inclusive, peer no later than version 0x97)
00054|nox|DBG:Success sending in 'sending switch config'
00055|nox|DBG:Success sending in 'receiving features reply'
00056|nox|DBG:Success receiving in 'receiving features reply'
00057|nox|DBG:Success sending in 'receiving ofmp capability reply'
00058|nox|DBG:Success receiving in 'receiving ofmp capability reply'
00059|nox|DBG:Datapath f510019bbb30d00 sent error in response to capability
reply, assuming no management support
00060|nox|DBG:No switch auth module registered, auto-approving switch
00061|nox|DBG:Registering switch with DPID = 19bbb30d00
00062|openflow-event|DBG:received packet-in event from 0019bbb30d00 (len:64)
00063|openflow|DBG:Passive tcp interface received connection
00064|openflow|DBG:stream: negotiated OpenFlow version 0x97 (we support
versions 0x97 to 0x97 inclusive, peer no later than version 0x97)
00065|nox|DBG:Success sending in 'sending switch config'
00066|nox|DBG:Success sending in 'receiving features reply'
00067|nox|DBG:Success receiving in 'receiving features reply'
00068|nox|DBG:Success sending in 'receiving ofmp capability reply'
00069|nox|DBG:Success receiving in 'receiving ofmp capability reply'
00070|nox|DBG:Datapath f500019bbb30d00 sent error in response to capability
reply, assuming no management support
00071|nox|DBG:No switch auth module registered, auto-approving switch
00072|nox|DBG:Registering switch with DPID = 19bbb30d00
00073|openflow|DBG:Passive tcp interface received connection
00074|openflow|DBG:stream: negotiated OpenFlow version 0x97 (we support
versions 0x97 to 0x97 inclusive, peer no later than version 0x97)
00075|nox|DBG:Success sending in 'sending switch config'
00076|nox|DBG:Success sending in 'receiving features reply'
00077|nox|DBG:Success receiving in 'receiving features reply'
00078|nox|DBG:Success sending in 'receiving ofmp capability reply'
00079|nox|DBG:Success receiving in 'receiving ofmp capability reply'
00080|nox|DBG:Datapath f510019bbb30d00 sent error in response to capability
reply, assuming no management support
00081|nox|DBG:No switch auth module registered, auto-approving switch
00082|nox|DBG:Registering switch with DPID = 19bbb30d00
00083|openflow-event|DBG:received packet-in event from 0019bbb30d00 (len:64)
00084|openflow|DBG:Passive tcp interface received connection
00085|openflow|DBG:stream: negotiated OpenFlow version 0x97 (we support
versions 0x97 to 0x97 inclusive, peer no later than version 0x97)
00086|nox|DBG:Success sending in 'sending switch config'
00087|nox|DBG:Success sending in 'receiving features reply'
00088|nox|DBG:Success receiving in 'receiving features reply'
00089|nox|DBG:Success sending in 'receiving ofmp capability reply'
00090|nox|DBG:Success receiving in 'receiving ofmp capability reply'
00091|nox|DBG:Datapath f500019bbb30d00 sent error in response to capability
reply, assuming no management support
00092|nox|DBG:No switch auth module registered, auto-approving switch
00093|nox|DBG:Registering switch with DPID = 19bbb30d00
.......
As you can see, the two instances with datapath f5 0 0019bbb30d00 and f5 1
0019bbb30d00 are both recognized, but nox seems to repeatedly register them,
flipping between the two. Has anyone else seen this problem?
When connecting the switch directly to nox, I can still ping hosts connected to
the HP switch with some slowdown, but when running the network with flowvisor,
the reliability is not so good.
Version info:
NOX 0.8.0~full~beta (nox_core), compiled Mar 19 2010 02:22:28
Compiled with OpenFlow 0x97 (exp)
Image stamp: /sw/code/build/btm(jeant_openflow)
Aug 31 2009 15:45:23
K.14.41hpl
70
Thanks in advance!
Tim Upthegrove
Georgia Institute of Technology
College of Computing
(406)-437-1493
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