There are really two issues: 1/ the need for a unique node ID2/ an engineering judgment call of whether one could borrow MAC addressto serve the above purpose. (this is similar to the existing TCP design of borrowing IP address as part of TCP's connection ID)2/ represents an engineering tradeoff because the borrowing saves the trouble of managing another new ID space.
Right. In addition, and perhaps more importantly, borrowing also saves the managing and securing of a mapping between the lower-layer ID and the upper-layer ID. - Christian -- to unsubscribe send a message to rrg-request@psg.com with the word 'unsubscribe' in a single line as the message text body. archive: <http://psg.com/lists/rrg/> & ftp://psg.com/pub/lists/rrg