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Path: utzoo!watmath!clyde!rutgers!sri-unix!sri-spam!mordor!lll-lcc!pyramid!voder!apple!lsr
From: lsr@apple.UUCP
Newsgroups: comp.sys.mac,comp.dcom.lans
Subject: Re: AppleTalk hierarchy help needed
Message-ID: <456@apple.UUCP>
Date: Tue, 10-Feb-87 12:38:41 EST
Article-I.D.: apple.456
Posted: Tue Feb 10 12:38:41 1987
Date-Received: Wed, 11-Feb-87 20:24:10 EST
References: <1019@gould9.UUCP>
Reply-To: lsr@apple.UUCP (Larry Rosenstein)
Organization: Advanced Technology Group, Apple Computer
Lines: 30
Keywords: ISO, layers
Xref: watmath comp.sys.mac:1250 comp.dcom.lans:199

In article <1019@gould9.UUCP> joel@gould9.UUCP (Joel West) writes:
>Can anyone help me with the AppleTalk hierarchy and how it
>relates to the ISO model?
>

According to Inside AppleTalk (June 1986), there are slight differences in
what Joel said.  (His original message is prefixed by '> below.)

>    1.	Physical	SCC, AppleTalk Personal Network, PhoneNet
>    2.	DataLink	ALAP
     3. Network		DDP
     4. Transport	RTMP, EP, ATP, NBP
     5. Session		ADSP, ZIP, ASP, PAP
     6. Presentation	AFP, Postscript
>    7.	Application	LaserWriter driver, any Mac program

EP = Echo Protocol, ADSP = AppleTalk DataStream Protocol, ZIP = Zone
Information Protocol, ASP = AppleTalk Session Protocol, PAP = Printer Access
Protocol.


-- 
Larry Rosenstein

Object Specialist
Apple Computer

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