Re: [RAM] Re: Ramblings about "locator"

> 	As someone who builds Ethernet switches these days,
> my take is that the IEEE MAC address (either 802 or 1394)
> in an Ethernet frame is an address (i.e. neither identifier,
> nor locator).

I disagree. I think it is just as overloaded as an IP address. MAC  
addresses are used as serial numbers in many products. That is an ID  
if I ever thought there was one. And a MAC address is certainly used  
to find (that means "where", and "where" means location) an ethernet  
attached station in a L2 switched network.

And what about how MAC addresses are used in IS-IS and in IPv6  
stateless auto-configuration. In these cases, it's purely an ID.

And for the old guys, remember OSI and what an L1 area in IS-IS was  
used for? To route system-ids which were based on MAC addresses. So  
in this case, the MAC was a locator.

Dino

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