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From: billkatt@mondo.engin.umich.edu (billkatt)
Newsgroups: comp.protocols.appletalk
Subject: Re: phase 2 with CAP/KIP
Message-ID: <1990Aug10.190338.12004@caen.engin.umich.edu>
Date: 10 Aug 90 19:03:38 GMT
References: <2687293@AppleLink.Apple.COM> <32629@cup.portal.com>
Sender: news@caen.engin.umich.edu (CAEN Netnews)
Reply-To: billkatt@mondo.engin.umich.edu (billkatt)
Organization: Computer Aided Engineering Network (CAEN), University of Michigan
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In article <32629@cup.portal.com> wcc@cup.portal.com (wcc - usa) writes:
>Chris Clauss (Clauss1@AppleLink.Apple.Com) writes:
> 
>> > Will I have problems getting CAP and KIP to work... ?
>>  
>>     KIP and CAP are still AppleTalk Phase 1! ...
>> But it seems to me that > one of the weakest parts of the KIP and 
>> CAP setup is that it is still Phase 1.
>
>The "KIP and CAP setup" (also called IPTalk in some places) consists of
>two separable parts. One is indeed "Phase 2 Compatible" and the other isn't.
>
buzzzz... Sorry, wrong answer Hans.

>Mac HOSTS on LocalTalk didn't notice any change with Phase 2. This is because
>LocalTalk is designated as a "Non-Extended" Network. None of the Zone and
>Network extensions apply. IPTalk (as practiced between routers and hosts)
>is also a Non-Extended Network. No change needed for Phase 2. There may be
>a small requirement for ATIS to now check the Zone name before answering
>NBP LookUps, but that's someone else's field. Talking to CAP hosts
>should still work on AppleTalk Phase 2 internets.

Hosts need a facility for maintaining a best router cache.  This is a
significant part of Phase II, since it speeds up internet access buy a LOT!!
Also, hosts need the ability to select which net they are in on an extended
network.  Since IPTalk isn't an extended network (although that may also be
what Chris Clauss was getting at), you don't need that.

>
>ROUTERS on LocalTalk (all networks, not just extended ones) did have to 
>change in order to be able to handle the new routing information. Thus the
>ROUTING part of IPTalk (that part that gets you from one AppleTalk network
>to another via IP) won't work with an AppleTalk Phase 2 network which is
>using the extensions. It should still work if the AppleTalk network is
>still in "Phase 1 Compatability" mode - which you have to do if running
>both Phase 1 and 2 together anyway.

Good point, trivial hack, though.

>
>> I hope that one of you CAP geniuses will be able to make CAP into a Phase 2
>> product.
>

CAP will have at least two major competitors (if free software can truly
compete with other free software) within a year.  And don't bug me about
details, you'll know it when you see it.

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