[ovs-discuss] Controller reference as name

Justin Pettit jpettit at nicira.com
Fri Dec 7 17:35:33 UTC 2012

We don't currently allow setting the controller based on name mostly due to in-band control rules.  We effectively would need to whitelist all DNS traffic when a switch is connected in-band, which means controller writers wouldn't be able to write DNS flows (at least to the configured DNS server).  Is there a set of controller IPs?  If so, then you could configure more than one.


On Dec 7, 2012, at 9:06 AM, Wanderson Paim <wanderson.paim at inf.ufrgs.br> wrote:

> Hi,
> I'm trying a loadbalancer implementation with DNS and I need to set the controller of the vswitch as a domain name instead of its IP address. 
> Example:
> ovs-vsctl set-controller br0 tcp:controllerx:6633
> Such "controllerx" has the appropriate IP reference of the controller at the DNS Server. I also tried setting it at /etc/hosts. I always got the same error shown at "ovs-vsctl list controller":
> ...
> status     :   last_error="Address family not supported by protocol"
> ...
> Is there any way to use controller name instead of IP address in the "ovs-vsctl set-controller" command? If not is there an alternative?
> Regards.,
> --
> Jesus, Wanderson
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