From owner-freebsd-hardware Tue Jul 9 12:11:56 1996 Return-Path: owner-hardware Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id MAA28908 for hardware-outgoing; Tue, 9 Jul 1996 12:11:56 -0700 (PDT) Received: from ns2.harborcom.net (root@ns2.harborcom.net [206.158.4.4]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id MAA28900 for ; Tue, 9 Jul 1996 12:11:51 -0700 (PDT) Received: from swoosh.dunn.org (swoosh.dunn.org [206.158.7.243]) by ns2.harborcom.net (8.7.4/8.6.12) with SMTP id PAA03381; Tue, 9 Jul 1996 15:11:37 -0400 (EDT) Message-Id: <199607091911.PAA03381@ns2.harborcom.net> Comments: Authenticated sender is From: "Bradley Dunn" Organization: Harbor Communications To: Michael Smith Date: Tue, 9 Jul 1996 15:05:56 -0500 MIME-Version: 1.0 Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Subject: Re: cable vs. ISDN Reply-to: dunn@harborcom.net CC: hardware@freebsd.org Priority: normal X-mailer: Pegasus Mail for Win32 (v2.31) Sender: owner-hardware@freebsd.org X-Loop: FreeBSD.org Precedence: bulk On 7 Jul 96 at 16:50, Michael Smith wrote: > Troy Arie Cobb stands accused of saying: > > > > All questions/issues of bandwidth aside, the real issue > > as I see it w/ cable networking is that it is BROADCAST > > ethernet. That is, every one in your cable-division (i.e. > > all of those houses connected to the same switch > > as you are) will get the same packets. Drop a wee little > > This is dubious. Ive seen no indication one way or another, but I'd > imagine that you'd have to sniff the cable side of the box, not the > inhouse side to see anything. What box, the cable "modem"? All diagrams of this technology I have seen have the modem in the house, connected via ethernet to the computer. In this case I do not think sniffing the cable side would be too difficult for the technically inclined. Of course it would be significantly more difficult if this box were buried outside or on a utility pole. The point is a valid one, though, I think. Cable was engineered from the start to be a broadcast media. AFAIK, there is no concept of a local loop with cable. The signal is just broadcast over the wires, with repeaters installed where necessary. Of course, I could be wrong, I'm not a cable guy. :) Bradley Dunn Harbor Communications