[ofa-general] MAC addresses unique on infiniband networks?

[Or Gerlitz]

Dan Stromberg wrote:
> Hi folks.
> 
> I don't see a generic infiniband discussion list anywhere, so I figured
> I'd try a Linux infiniband list.
> 
> Does anyone know for sure if MAC addresses are unique in infiniband
> networks, with or without ipoib?

sticking to IPoIB, please take a look at section 9.1.1.  "Link-Layer 
Address/Hardware Address" of RFC 4391, and elsewhere in this doc to get 
answers to your questions below.

Or.

> I know with ethernet, they're supposed to be, but:
> 1) Sun sometimes likes to put the same MAC address on more than one subnet
> iun machines with more than one NIC
> 2) Some ethernet drivers let people change the MAC address
> 
> Is it about the same with infiniband?