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From: winders@aux.support.apple.com (Scott Winders)
Newsgroups: comp.protocols.appletalk
Subject: Re: Appletalk Phase 1 - 2 Question.
Message-ID: <48636@apple.Apple.COM>
Date: 30 Jan 91 02:17:19 GMT
Sender: nntp@Apple.COM
Organization: Apple Computer, Inc.
Lines: 23
References:<9101291116.aa27259@COR2.PICA.ARMY.MIL> <11907@goofy.Apple.COM>

In article <11907@goofy.Apple.COM> DHARRIS@applelink.apple.com (Davie 
Harris) writes:

> Because every Macintosh has LocalTalk capabilities built in, AppleTalk 
> software is installed with System Software.  Prior to System Software 
> 6.0.3, LocalTalk was Phase I.  Beginning with System Software 6.0.3 and 
> with each subsequent version of System Software LocalTalk has been Phase 
> II.  The differences between Phase I LocalTalk and Phase II LocalTalk are 
> not as great as the differences between Phase I EtherTalk and Phase II 
> EtherTalk, but they do exist.

Davie,

The version of System Software in use has nothing to do with whether or not a Macintosh system is running non-extended AppleTalk Phase 2 over LocalTalk. AppleTalk Phase 2 is available on the Macintosh Plus or later Macintosh systems. AppleTalk Phase 2 requires AppleTalk version 53 or later and an AppleTalk Phase 2 INIT. Both the AppleTalk v53 file and the AppleTalk Phase 2 INIT are installed by the EtherTalk 2.x and TokenTalk 2.x installers.  The Macintosh IIfx, Macintosh IIsi, and Macintosh LC have AppleT





alk version 54 built into ROM and do not require the AppleTAlk v53 file.

The differences between AppleTalk Phase 1 and AppleTalk Phase 2 LocalTalk networks has to do new high-level AppleTalk calls, not in protocol changes.  I am not aware of any applications or utilities that require AppleTalk Phase 2 on LocalTalk networks at this time.  At this time I see no benefit to installing AppleTalk Phase 2 for LocalTalk users.

Macintosh Technical Note #250 discusses the new calls that AppleTalk Phase 2 provides on LocalTalk (these calls are also available to extended AppleTalk Phase 2 networks such as TokenTalk).

Scott Winders
internet: winders@aux.support.apple.com
AppleLink: winders.s@applelink.apple.com