It looks like your controller is refusing the connection, since your tcpdump 
output shows a reset [R] to the connection request. 

--Justin


On May 3, 2012, at 5:39 PM, Anisha Kolasani <[email protected]> wrote:

> 
> Some lines from the OVS log file are showing:
> 
> OVS log file:
> 
> May 03 16:40:45|231992|rconn|DBG|br0<->tcp:127.0.0.1:6633: entering BACKOFF
> May 03 16:40:53|232147|rconn|WARN|br0<->tcp:127.0.0.1:6633: connection failed 
> (Connection refused)
> 
> May 03 18:46:41|00109|rconn|INFO|br0<->tcp:127.0.0.1:6633: waiting 1 seconds 
> before reconnect
> May 03 18:46:41|00110|rconn|DBG|br0<->tcp:127.0.0.1:6633: entering BACKOFF
> May 03 18:46:41|00111|connmgr|WARN|br0: unsupported controller "--out-of-band"
> 
>  When I saw the tcpdump on lo, there were requests passing with the 
> controller:
> 
> localhost.50703 > localhost.6633: Flags [S], cksum 0xfe30 (incorrect -> 
> 0x302d), seq 266318493, win 32792, options [mss 16396,sackOK,TS val 4046000 
> ecr 0,nop,wscale 4], length 0
> 17:35:04.516841 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP 
> (6), length 40)
>     localhost.6633 > localhost.50703: Flags [R.], cksum 0x0f58 (correct), seq 
> 0, ack 266318494, win 0, length 0
> 17:35:12.518817 IP (tos 0x0, ttl 64, id 53647, offset 0, flags [DF], proto 
> TCP (6), length 60)
> 
> 
> How can the OVS be configured in --out-of-band control mode? Are there any 
> documents I could refer too..?
> I tried using 'ovs-openflowd' to set controller to the swithch.. but there 
> was not command like that. Any pointers regarding this?
> 
> Thank you,
> Anisha.
> 
> 
> 
> On Thu, May 3, 2012 at 4:51 PM, Ben Pfaff <[email protected]> wrote:
> On Thu, May 03, 2012 at 04:44:56PM -0500, Anisha Kolasani wrote:
> > My system settings are:
> >
> > *sudo ovs-vsctl show*
> > 12681540-b7fe-4f22-8c25-8371ae195eb5
> >     Bridge "br0"
> >         Controller "tcp:127.0.0.1:6633"
> >         fail_mode: standalone
> >         Port "eth0"
> >             Interface "eth0"
> >         Port "br0"
> >             Interface "br0"
> >                 type: internal
> >         Port "tap0"
> >             Interface "tap0"
> >         Port "tap1"
> >             Interface "tap1"
> >
> >
> > There are no flows that I can see..
> > *sudo ovs-ofctl dump-flows br0*
> > NXST_FLOW reply (xid=0x4):
> >
> >
> > I am running the controller at the port 6633 in the same machine...But, the
> > following two are the only two message I see when the controller starts:
> >
> > *sudo ./nox_core -v -i ptcp:6633 pyswitch*
> > 00001|nox|INFO:Starting nox_core
> > (/home/anisha/nox/build/src/.libs/lt-nox_core)
> > 00002|nox|INFO:nox bootstrap complete
> >
> > I am not sure why the bridge br0 is not able to connect to the Nox
> > controller.
> > If anybody has tried this before, could you please let me know any pointers
> > to as to where its going wrong?
> 
> You should probably configure OVS for out-of-band control.
> 
> But what's in the OVS log?
> 
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