[rbridge] Should we optimize the common case?

[Caitlin Bestler]

Guillermo Ibáñez wrote:
> Two comments.
> Guillermo
> 
> Radia Perlman escribió:
>> The first RBridge has to recognize a true MAC address,
> The first RBridge recognizes a true MAC adress and replaces
> in the encapsulated frame with the hierarchical address (MAC
> swapping).

I think you are suggesting that the RBRidge act as proxy ARP
so that all remote traffic thinks that the local MAC address
is *the* MAC address, complete with translation of MAC addresses
on the fly.

There are some cool possibilities there, but unfortunately I
do not think such a solution is universally viable. For a local
connection applications may attach actual meaning to the MAC
address. Some immediate examples that come to mind include
DHCP servers and the generation of default IPv6 addresses.