Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!decwrl!sgi!vjs@rhyolite.wpd.sgi.com
From: vjs@rhyolite.wpd.sgi.com (Vernon Schryver)
Newsgroups: comp.protocols.tcp-ip
Subject: Re: TCP benchmarking
Message-ID: <97251@sgi.sgi.com>
Date: 14 Apr 91 03:55:31 GMT
References: <9104120230.aa07219@SPARK.BRL.MIL>
Sender: guest@sgi.sgi.com
Organization: Silicon Graphics, Inc., Mountain View, CA
Lines: 21

In article <9104120230.aa07219@SPARK.BRL.MIL>, reschly@BRL.MIL ("Robert J. Reschly Jr.") writes:
> 
> > First try the 4.3BSD `ping -l9999999 target` and look at the packet rate.
> >
>    ...but before you do that, be sure your mbuf code is fixed.  On BSD
> systems of early 4.3TAHOE vintage or earlier, you could get an mbuf
> panic from all those unprocessed ICMP Echo Replies.


I'll take your word for that.

To really test things, you don't want the replies cluttering up the net,
causing collisions.   I forgot to mention that you want to add a suitable
entry to your ARP cache so you can blast something that won't blast back.
And the best 9.6 usec numbers need an otherwise quiet net.

Of course, these fun games would be considered denial-of-service attacks by
anyone trying to use the ethernet for real work.


Vernon Schryver,   vjs@sgi.com