[ovs-discuss] OVS controller reconnection on XenServer reboot

Justin Pettit jpettit at nicira.com
Tue May 3 06:57:06 UTC 2011


On May 2, 2011, at 11:48 PM, David Erickson wrote:

> Ah ok so ovs-vsctl to this management protocol is similar to what dpctl is to OpenFlow?

Ye.  In OVS, the utilities map as follows:

	ovs-vsctl -> ovsdb-server (OVS management protocol)
	ovs-ofctl -> ovs-vswitchd (OpenFlow protocol)
	ovs-dpctl -> kernel module (NetLink protocol)

> In an ideal XenServer pool what is the envisioned way that an individual bridge on a XenServer gets its controller host ip:port, and any other configuration set?  Is this possible from the pool master?  Or do I need to just create scripts to set this on each box in rc.local?

You'd either need a manager (or ovs-vsctl acting as a manger) or local configuration through something like rc.local.  Citrix's Distributed Virtual Switch (DVS), for example, actually speaks the management protocol to configure OpenFlow, but it's not freely available.  However, the Pool Master itself only speaks XAPI, which doesn't have hooks for setting the controller.

--Justin





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