From owner-freebsd-hackers Tue Feb 24 23:07:21 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id XAA25934 for freebsd-hackers-outgoing; Tue, 24 Feb 1998 23:07:21 -0800 (PST) (envelope-from owner-freebsd-hackers@FreeBSD.ORG) Received: from smtp01.primenet.com (smtp01.primenet.com [206.165.6.131]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id XAA25920 for ; Tue, 24 Feb 1998 23:07:07 -0800 (PST) (envelope-from tlambert@usr05.primenet.com) Received: (from daemon@localhost) by smtp01.primenet.com (8.8.8/8.8.8) id AAA28272; Wed, 25 Feb 1998 00:07:03 -0700 (MST) Received: from usr05.primenet.com(206.165.6.205) via SMTP by smtp01.primenet.com, id smtpd028225; Wed Feb 25 00:06:57 1998 Received: (from tlambert@localhost) by usr05.primenet.com (8.8.5/8.8.5) id AAA12884; Wed, 25 Feb 1998 00:06:51 -0700 (MST) From: Terry Lambert Message-Id: <199802250706.AAA12884@usr05.primenet.com> Subject: Re: Token Ring for FreeBSD yet? To: grog@lemis.com (Greg Lehey) Date: Wed, 25 Feb 1998 07:06:50 +0000 (GMT) Cc: tlambert@primenet.com, tom@sdf.com, jak@cetlink.net, cdillon@wolves.k12.mo.us, AdamT@smginc.com, hackers@FreeBSD.ORG, rob@f-body.org In-Reply-To: <19980225165613.45832@freebie.lemis.com> from "Greg Lehey" at Feb 25, 98 04:56:13 pm X-Mailer: ELM [version 2.4 PL25] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > > In fact, a token ring of N stations allows for N/3 - 1 simultaneous > > tokens (minimum, one) so that you can have multiple packes in process > > at once. > > Ah. I was basing my calculations on a single token. Did 4 MB token > ring have multiple tokens? I don't know; I think so. But the saturation was certainly calculated on segment-to-adressee. In general you can assume 50% saturation (50% will be above the halfway mark, and 50% below), on top of which you can add 100% utilization (instead of 85% -- see Knuth on "hashing"). Terry Lambert terry@lambert.org --- Any opinions in this posting are my own and not those of my present or previous employers. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message