Path: utzoo!utgpu!water!watmath!clyde!att-cb!osu-cis!tut.cis.ohio-state.edu!bloom-beacon!gatech!ncar!ames!pasteur!ucbvax!TRANTOR.UMD.EDU!louie
From: louie@TRANTOR.UMD.EDU ("Louis A. Mamakos")
Newsgroups: comp.protocols.tcp-ip
Subject: Re: SLIP working group?
Message-ID: <8803311518.AA16742@trantor.UMD.EDU>
Date: 31 Mar 88 15:18:36 GMT
References: <8803311257.AA16410@mome.cs.umd.edu>
Sender: usenet@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 13

Just to add fuel to the fire..  The NFS implementation under Ultrix (DEC's
UNIX product) does in fact use UDP checksums.  Works just fine.

The intent of the CRC on the SLIP frame wasn't exclusively to support SUN
NFS, although it was a large motivating factor.  Once we thought about it,
it seemed to be a good idea to be able to drop a frame which has been
trashed in transit.  This way you wouldn't be forwarding a broken frame
across multiple (probably slow) SLIP links.

There was no intention of having SLIP retransmit or attempt to recover 
broken frames.

louie