[ovs-discuss] How vswitchd connects to open flow controller

[Derek Cormier]

I haven't used the auto discovery, but I use:

ovs-vsctl set-controller br0 tcp:192.168.1.100:6633

...where br0 is the name of my virtual bridge and 192.168.1.100 is the 
IP address I assigned to the virtual bridge using ifconfig.

My controller listens locally on port 6633.

-Derek


On 12/10/2010 02:36 PM, frank wrote:
>  Hi experts:
>     I don't see parameter to specify IP/Port of openflow controller 
> for vswitchd connect in, How vswitchd find controller? auto discovery?
>     by
>
>     ovs-vswitchd ofproto/list
>
>     output:
>
> Dec 09 21:32:22|00001|reconnect|INFO|ofproto/list: connecting...
> Dec 09 21:32:22|00002|reconnect|WARN|ofproto/list: connection attempt 
> failed (Address family not supported by protocol)
> Dec 09 21:32:22|00003|reconnect|INFO|ofproto/list: waiting 1 seconds 
> before reconnect
>
>     where it tries to connect to?
>
>     from openflow spec 1.0, I found:
>
> >>Future versions of the protocol specification will describe a 
> dynamic controller
> >>discovery protocol in which the IP address and port for 
> communicating with
> >>the controller is determined at runtime.
>
>      does it mean current openflow switch could only connect to 
> specified address? if so, what's vswitchd way?
>