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From: boylan@dicomed.UUCP (Chris Boylan)
Newsgroups: fa.info-vax
Subject: Re: TCP/IP and DECnet speeds
Message-ID: <267@dicomed.UUCP>
Date: Sat, 6-Oct-84 23:07:52 EDT
Article-I.D.: dicomed.267
Posted: Sat Oct  6 23:07:52 1984
Date-Received: Mon, 8-Oct-84 03:34:48 EDT
References: <2364@ucbvax.ARPA>
Organization: DICOMED Corp., Minneapolis
Lines: 17

Unless my calculator (dc) is broken, at least one of the numbers
quoted for DECNET throughput on ethernet (task to task) is greater
than the theoretical maximum throughput of ethernet.

This is interesting to say the least.

It's important to remember that node-node measurements of ethernet
throughput are almost always half-duplex and do not take into
consideration collisions which is critical to determining "real"
throughput.

This is obviously true for all CSMA/CD networks.
-- 

	Chris Boylan
	{mgnetp | ihnp4 | uwvax}!dicomed!boylan