From owner-freebsd-isp Sat Nov 16 11:54:02 1996 Return-Path: owner-isp Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id LAA15464 for isp-outgoing; Sat, 16 Nov 1996 11:54:02 -0800 (PST) Received: from cicerone.uunet.ca (root@cicerone.uunet.ca [142.77.1.11]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id LAA15459 for ; Sat, 16 Nov 1996 11:53:59 -0800 (PST) Received: from why.whine.com ([205.150.249.1]) by mail.uunet.ca with ESMTP id <115862-19847>; Sat, 16 Nov 1996 10:53:47 -0500 Received: from why (andrew@why [205.150.249.1]) by why.whine.com (8.7.6/8.6.12) with SMTP id OAA00466; Sat, 16 Nov 1996 14:53:30 -0500 (EST) Date: Sat, 16 Nov 1996 14:53:29 -0500 From: Andrew Herdman X-Sender: andrew@why To: Bradley Dunn cc: dennis , isp@freebsd.org Subject: Re: changed to: Frac T3? In-Reply-To: Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-isp@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On Sat, 16 Nov 1996, Bradley Dunn wrote: > On Sat, 16 Nov 1996, dennis wrote: > > > >On Fri, 15 Nov 1996, dennis wrote: > > > > > >> What I was saying was that I dont thing unix can route a steady > > >> 86Mbs data stream, so a full T3 on a unix box may very well be > > >> overkill. > > > > > >Hmmm...Apparently you are not aware of the Ascend GRF 400. > > >http://www.ascend.com/products/grf400/grf400index.html > > > > Perhaps you haven't read it yourself? They are certainly not running anything > > similar to standard unix....they "cheat" by maintaining on-board caches so > > packets don't have to pass through the IP layer, as BSD design requires. > > Certainly you can do something similar for BSD systems, but it won't > > be a standard release O/S afterwards. Such things are OK if you are building > > a special-function system, but non highly desireable for general purpose O/Ss > > Exactly, but you seemed to be saying that unix could not route at that > speed. The Ascend embedded OS is a hacked unix. It uses gated, but you > could in fact use anything that writes to the unix routing socket. I call > that unix. > > -BD > The UNIX itself doesn't actually do the routing. It creates the table and download's it down to the actual interface cards which use a type of silicon switching to route the packets. The UNIX portion of the box simply makes the tables. Andrew