[net.lan] NCC

mark@cbosgd.UUCP (Mark Horton) (07/28/84)

> 3Comm is distributing free of charge the MIT IP/TCP code. The salesman
> was reluctant to acknowlege that this was code from MIT and seemed openly
> hostile to the idea of IP/TCP in the first place.

Has 3Com given up on UNET?  They seem to be pushing XNS and Fusion the
last I heard.  Is Fusion even compatible with Xerox at the (newly released)
application layer?  Will it talk to anybody else's XNS?  (For that matter,
did the latest Xerox release clear up all the compatibility problems or
are there still incompable address resolution kludges needed?)

ron@brl-tgr.ARPA (Ron Natalie <ron>) (08/02/84)

If 3Com was smart, they'd give up on UNET!  It's among the worst attempts
at TCP I've seen.  Great if you want to talk to other UNET sites, not so
hot at talking to real internetters.

-Ron

jdd@allegra.UUCP (John DeTreville) (08/06/84)

    From: ron@brl-tgr.ARPA (Ron Natalie <ron>)
    Newsgroups: net.micro.pc,net.lan
    Subject: Re: NCC
    Date: Thu, 2-Aug-84 11:34:22 EDT

    If 3Com was smart, they'd give up on UNET!  It's among the worst attempts
    at TCP I've seen.  Great if you want to talk to other UNET sites, not so
    hot at talking to real internetters.

The principal problem with UNET is that it was one of the earlier available
implementations of TCP/IP.  Such systems are typically debugged by seeing
whether they can talk with other systems (if they can't, it may be their
fault, or the other systems' fault, or both).  When UNET first came out,
there weren't an awful lot of other TCP/IP implementations around to test it
against.  As other implementations have come out, the process of testing
them has uncovered various bugs in UNET, which do get fixed.

The release of new implementations has also uncovered some unfortunate
overflexibilities in the TCP/IP specification, which allows for two
implementations, each of which conforms with the standard, to be unable to
communicate.  These problems are solved by arriving at a (weighted) consensus,
and once again UNET has to be changed.

Cheers,
John DeTreville
Bell Labs, Murray Hill