Path: utzoo!attcan!uunet!lll-winken!lll-tis!helios.ee.lbl.gov!pasteur!ucbvax!CSL.SRI.COM!auerbach
From: auerbach@CSL.SRI.COM (Karl Auerbach)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: TDR function of MICOM NI5210 card
Message-ID: <8808302332.AA10782@hercules.csl.sri.com>
Date: 30 Aug 88 23:32:51 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 11

Recently I put together a driver for an Ether-board that uses the Intel
82586 controller.  As part of the software initialization I had it do
a TDR check.  It was useful for testing the cable, and more importantly,
the drop cable and connectors.

However, there were circumstances where the TDR check failed -- mainly
on broadband networks and over-extended Ethernets.

If you do the TDR it would probably be useful to add an option to bypass
the test for those nets on which it fails but not as a result of an error.

				--karl--