From owner-freebsd-questions Mon Feb 19 20:13:16 2001 Delivered-To: freebsd-questions@freebsd.org Received: from mail.wolves.k12.mo.us (mail.wolves.k12.mo.us [207.160.214.1]) by hub.freebsd.org (Postfix) with ESMTP id 410EC37B503 for ; Mon, 19 Feb 2001 20:13:13 -0800 (PST) Received: from mail.wolves.k12.mo.us (cdillon@mail.wolves.k12.mo.us [207.160.214.1]) by mail.wolves.k12.mo.us (8.9.3/8.9.3) with ESMTP id WAA47505; Mon, 19 Feb 2001 22:13:09 -0600 (CST) (envelope-from cdillon@wolves.k12.mo.us) Date: Mon, 19 Feb 2001 22:13:08 -0600 (CST) From: Chris Dillon To: Elliot Finley Cc: Subject: Re: how many switches? In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG On Mon, 19 Feb 2001, Elliot Finley wrote: > This isn't exactly a FreeBSD question, but since it's going to be > an all FBSD network... :-) > > I know that I can only go through 3-4 hubs before I have timing > issues. My question is: how many switches can I go through? it > seems like it would be unlimited as long as the packet passed > through them and the response came back before the application > timed out. This is the case isn't it? Since a switch uses > store-and-forward. That should be the case, yes. Not all switches use the store-and-forward method, but that is irrelevant to your situation, except that the other methods reduce the switching latency that is involved with the store-and-forward method, thus reducing the possible time-out you mention, which would be very unlikely that you met unless it were a very short timeout and/or you were linking millions of switches that ran the circumference of the planet several times over. -- Chris Dillon - cdillon@wolves.k12.mo.us - cdillon@inter-linc.net FreeBSD: The fastest and most stable server OS on the planet. For IA32 and Alpha architectures. IA64, PPC, and ARM under development. http://www.freebsd.org To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message