[rbridge] RBridge: a case of study

[Silvano Gai]

Anoop wrote:

--- snip ---

> 
> This is where I think would help to introduce some
> additional terminology in the spec.  Just like MPLS
> LSRs have ingress, core, and egress functionality,
> I think we should have similar functions for RBridging.
> We could have access ports, trill ports and hybrid
> ports.  From access ports, we only accept non-trill
> encap'ed frames, from trill ports, we accept only
> trill-encap'ed frames, and finally, from hybrid ports
> we accept either.  Today we only allow hybrid ports
> and perhaps that's OK as a spec.
> 

I strongly second Anoop proposal of adding terminology related to
access, core, hybrid, ingress, egress, etc.

The lack of such terminology in TRILL has been cause of confusion and it
has slow down the progress of the spec.

-- Silvano