[ovs-discuss] Identical VM-MACs with Open vSwitch?

[Trebor Forban]

Hello Ben,

thanks for your answer. I'm not really too familiar with VLANs, but I
did look into this once with vde-switch from virtualsquare.org, and
identical MACs were not supported. I suspect there might be VLAN
switch implementations where uniqueness/routing is determined by
MAC+VLAN bits, but I'm only guessing. I will look into this and
OpenFlow, but it would be nice if someone who is in the know could
lead me in the right direction, before I spend endless hours barking
up the wrong tree.

Best regards,
TF

2011/12/9 Ben Pfaff <blp at nicira.com>:
> On Fri, Dec 09, 2011 at 11:05:16AM +0100, Trebor Forban wrote:
>> I would be very thankful for any insight, as to how I might be able to
>> "cloak" identical MACs.
>> Can Open vSwitch realize this with VLANs, or maybe some type of MAT (MAC-NAT)?
>
> Open vSwitch supports VLANs, so if VLANs solve your problem then yes
> that is one possibility.
>
> I think that you could implement MAC translation using OpenFlow
> rules.  I have not implemented a MAC translation solution before, so I
> don't know what issues are likely to come up.