[ovs-discuss] Fw: Protocol error when quering OVS with ovs-ofctl dump-aggregate

Justin Pettit jpettit at nicira.com
Thu Jan 9 22:46:03 UTC 2014


Are you trying to get this information on a different system than where OVS is running?  If so, you need to tell your OVS to listen for an OpenFlow connection:

	ovs-vsctl set-controller <bridge> ptcp:

This is a somewhat unusual configuration.  Usually, ovs-ofctl commands are run locally and just use a Unix domain socket, or a controller is running on a remote system and OVS establishes the OpenFlow connection.  Rarely, do we configure OVS to listen for a TCP-based OpenFlow connection.

--Justin


On Jan 9, 2014, at 2:19 PM, Alex Nelson <alex_under33 at yahoo.com> wrote:

> It's giving connection refused. 
> 
> controller:~> ovs-ofctl dump-aggregate tcp:10.1.5.3:6633
> ovs-ofctl: connecting to tcp:10.1.5.3:6633 (Connection refused)
> controller:~> ovs-ofctl dump-aggregate tcp:10.1.5.3
> ovs-ofctl: connecting to tcp:10.1.5.3 (Connection refused)
> controller:~> 
> 
> 
> On Thursday, January 9, 2014 10:24 AM, Justin Pettit <jpettit at nicira.com> wrote:
> By default, OpenFlow runs on port 6633 and OVSDB runs on port 6634.  ovs-ofctl uses the OpenFlow protocol, so I'd expect it to use port 6633.  What happens if you run ovs-ofctl either without the port specified or using port 6633?
> 
> --Justin
> 
> 
> On Jan 9, 2014, at 10:06 AM, Alex Nelson <alex_under33 at yahoo.com> wrote:
> 
>> I run it with the -vvconn option but I don't get much info:
>> 
>> ovs-ofctl -vvconn dump-aggregate tcp:10.1.5.3:6634
>> 2014-01-09T17:54:02Z|00001|vconn|DBG|tcp:10.1.5.3:6634: sent (Success): OFPT_HELLO (xid=0x1):
>> ovs-ofctl: connecting to tcp:10.1.5.3:6634 (Connection reset by peer)
>> 
>> It seems it works fine from the client's side. Do I have to setup the DB at the OVS in any special way in order to have remote access through a socket? 
>> 
>> I have tried many different ways I found online including the following:
>> 
>> ovsdb-server --remote=punix:/usr/local/var/run/openvswitch/db.sock \
>>                   --remote=db:Open_vSwitch,manager_options \
>>                   --remote=tcp:10.1.5.3:6634
>>                   --pidfile --detach
>> but nothing...
>> 
>> 
>> On Thursday, January 9, 2014 8:59 AM, Justin Pettit <jpettit at nicira.com> wrote:
>> 
>> On Jan 9, 2014, at 5:02 AM, Alex Nelson <alex_under33 at yahoo.com> wrote:
>> 
>>> I'm trying to get aggregated stats about the installed flows of an OVS. 
>>> 
>>> I'm running: ovs-ofctl dump-aggregate tcp:10.1.5.3:6634 in one machine,
>>> 
>>> and I get: ovs-ofctl: connecting to tcp:10.1.5.3:6634 (Connection reset by peer)
>> 
>> 
>> By default, OpenFlow runs on port 6633.  I'd double-check your port numbers.  If that doesn't work, then try Ben's "-vvconn" suggestion.
>> 
>> --Justin
>> 
>> 
>> 
>> 
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> 
> 




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