5 Aug 87 17:18:00 GMT
I hope you will bear with me... not being yet familiar with the workings
of UNIX mail I don't know if my responses to individual mail will also
be posted here, but I would like to clarify my statements re: DECnet...
I still have not seen any example of a DECnet-assigned Ethernet address
which is NOT globally unique. Can someone give such an example of DEC's
preemption of another vendor's Ethernet address?
I realize that it would be possible for 2 DECnet nodes to choose the
same DECnet address thereby choosing the same Ethernet address, but in
practice of course this is not supposed to happen, anymore than 2 sites
choosing the same IP address.
While I also do not know of any "global administration" of DECnet ad-
dresses, it so happens that here at the University of Illinois we make
all DECnet address assignments through a contact with the PHYSnet man-
agement (no, I don't know any more details than that).
To say this another way, I am free to bring up my own Ethernet (in my
office, right!) and choose any DECnet and/or IP addresses I want for my
personal machines, but once I connect my net to the Internet or PHYSnet
or whatever, I obviously must choose to coexist in harmony (or suffer
Also, I agree that 2**16 unique addresses is an undesirable limitation,
but at one time it was only 2**10 addresses, and so one might surmise
that DEC will once again respond to the perceived need for more addresses
in due time.
This may all be a moot discussion in light of newer protocols being
developed (?), but then who can really say? (Not me anyway (:^))
Mark Sandrock, (Mark Sandrock, (sandrock@uiucuxc.UUCP)
This archive was generated by hypermail 2.0b3 on Thu Mar 09 2000 - 14:38:49 GMT