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From: lee@rocksanne.UUCP (Lee Moore)
Newsgroups: comp.dcom.lans
Subject: Re: Ethernet protocol numbers
Message-ID: <440@rocksanne.UUCP>
Date: Wed, 4-Nov-87 18:23:51 EST
Article-I.D.: rocksann.440
Posted: Wed Nov  4 18:23:51 1987
Date-Received: Sat, 7-Nov-87 18:30:34 EST
References: <3383@uw-june.UUCP> <4903@sdcrdcf.UUCP>
Organization: Xerox: Webster Research Center, Rochester, NY
Lines: 29
Summary: there are numbers but they won't help you

Xerox does keep a list of assigned numbers for the Ethernet packet types
but it's probably not what you want.

First, although Xerox does allocate Ethernet packet types, Xerox only
records the name of the requestor and the number(s) assigned to the requestor.
It does not ask the requestor what function the number(s) represent.

Furthermore, the assignee may request that Xerox not publish what numbers
a particular company has -- or even that a particular company has any numbers
at all.  For example, the list I have doesn't show any thing for DEC.
On the other hand DEC has been using several numbers for its own protocols.
I strongly suspect that they got those numbers from Xerox.  Maybe somebody
in DEC can explain why they haven't let Xerox publish which numbers they have.

In any case, even though I can tell you that 8008(16) is assigned to Stanford
University, Xerox hasn't recorded what that type is used for.  (from a
previous message somebody said it was RARP [reverse arp?]).

Similarly, I can tell you that 807D to 8080 (16) is assigned to Vitalink
Communications of Mt. View.  (from a previous message somebody said that
8080 is for bridge management).

Lee Moore
Xerox Webster Research Center
-- 
Lee Moore -- Xerox Webster Research Center, birthplace of the XGP
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