[ovs-discuss] question about "ovs-vsctl list-br" on XenServer 5.6FP1

[Neil McKee]

OK.  Thanks.

Neil


On Jul 1, 2011, at 2:35 PM, Ben Pfaff wrote:

> On Fri, Jul 01, 2011 at 02:32:01PM -0700, Neil McKee wrote:
>> What does it mean for a bridge to appear in "ovs-vsctl list-br" that
>> does not then also appear in "ovs-vsctl list bridge"?
> 
> Those are "VLAN bridges" or "fake bridges", see ovs-vsctl(8) under
> "Linux VLAN Bridging Compatibility".
> 
>> I ran into this problem on a XenServer 5.6FP1 system.  The bridge
>> "xapi1" appeared in the first list ("list-br") but not in the second
>> one ("list bridge").
> 
> Yes, xapi1 is a VLAN bridge.
> 
>> I'm looking for a reliable and universal way to get the list of
>> bridges that can be given an sFlow config.  Should I avoid "list-br"
>> and just parse the more verbose "list bridge" output instead?
> 
> The latter is better, yes.  You can use "ovs-vsctl --bare --
> --columns=name list bridge" if that makes parsing easier.