[netcf-devel] Multiple interfaces with identical mac-addresses

Daniel P. Berrange berrange at redhat.com
Wed Jun 24 17:22:28 UTC 2009


On Wed, Jun 24, 2009 at 10:20:00AM -0700, David Lutterkort wrote:
> On Tue, 2009-06-23 at 21:47 +0100, Daniel P. Berrange wrote:
> > Why would we ever have duplicate MAC addresses?
> 
> VLANs:
> 
>         # vconfig add eth0 42
>         #  cat /sys/class/net/eth0.42/address 
>         00:15:58:81:5b:0e
>         # cat /sys/class/net/eth0/address    
>         00:15:58:81:5b:0e

Ok, so for the libvirt API we should define that the lookup-by-mac API
will not return VLAN devices, since we cant provide a 1-1 lookup there


Daniel
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