Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!ucbvax!VAX.FTP.COM!jbvb
From: jbvb@VAX.FTP.COM (James Van Bokkelen)
Newsgroups: comp.protocols.tcp-ip.ibmpc
Subject: Re: pc/ip NETWATCH
Message-ID: <9002021451.AA16006@vax.ftp.com>
Date: 2 Feb 90 14:51:01 GMT
References: <E5678436D0BF0000A3@dukemc>
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 16

FCS is another term for the 32 bits of CRC that follow the data in the Ethernet
packet.  It stands for Frame Check Sequence, I think.  LANWatch calls this a
CRC error when it displays the packet.

An OVERRUN error indicates that data came off the net faster than the interface
could store it on the PC (either via the PC's DMA channels to the PC's memory,
or via the LAN chip's own DMA to shared memory on the card).

DRIBBLE is a 3Com-ism (I think) for packets that didn't end on an even
byte boundary.  In LANWatch, at least, the only interface that can
generate DRIBBLE errors is the 3C500, where I believe It is a synonym
for "alignment errors".  Other interfaces call the same condition an
ALIGN error.

James B. VanBokkelen		26 Princess St., Wakefield, MA  01880
FTP Software Inc.		voice: (617) 246-0900  fax: (617) 246-0901