Path: utzoo!attcan!utgpu!news-server.csri.toronto.edu!clyde.concordia.ca!thunder.mcrcim.mcgill.edu!snorkelwacker.mit.edu!apple!usc!samsung!uunet!bu.edu!wang!comm.wang.com!lws From: lws@comm.wang.com (Lyle Seaman) Newsgroups: comp.dcom.lans Subject: Re: Ethernet collisions Keywords: LANalyzer Ethernet Message-ID: <1990Dec20.181458.19557@comm.wang.com> Date: 20 Dec 90 18:14:58 GMT References: <467@pirates.UUCP> <2184@cybaswan.UUCP> Organization: Wang Labs, Platform Comms. Lines: 20 iiitih@cybaswan.UUCP (Ivan Izikowitz) writes: >If you don't think you have a faulty card, then you probably have a >heavily loaded network. Just take a look at any of the published Right. >performance curves for the 802.3 protocol - throughput is severely >degraded once the offered load exceeds a certain value (I think about >40% of channel capacity?) Rong. Yeah, a lot of the papers say that, but they're talking about the entire load evenly distributed over the entire network. And even then, they cite figures of 65% of capacity. I routinely see usage approaching 90% with very little trouble (admittedly, an unusual LAN configuration, as well). -- Lyle Wang lws@capybara.comm.wang.com 508 967 2322 Lowell, MA, USA Source code: the _ultimate_ documentation.