From owner-freebsd-questions@FreeBSD.ORG Sat Jul 18 08:11:55 2009 Return-Path: Delivered-To: FreeBSD-Questions@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 8D452106564A for ; Sat, 18 Jul 2009 08:11:55 +0000 (UTC) (envelope-from perryh@pluto.rain.com) Received: from agora.rdrop.com (unknown [IPv6:2607:f678:1010::34]) by mx1.freebsd.org (Postfix) with ESMTP id 64BC48FC22 for ; Sat, 18 Jul 2009 08:11:55 +0000 (UTC) (envelope-from perryh@pluto.rain.com) Received: from agora.rdrop.com (66@localhost [127.0.0.1]) by agora.rdrop.com (8.13.1/8.12.7) with ESMTP id n6I8BsHe054032 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NOT); Sat, 18 Jul 2009 01:11:54 -0700 (PDT) (envelope-from perryh@pluto.rain.com) Received: (from uucp@localhost) by agora.rdrop.com (8.13.1/8.12.9/Submit) with UUCP id n6I8Bsfm054031; Sat, 18 Jul 2009 01:11:54 -0700 (PDT) Received: from fbsd61 by pluto.rain.com (4.1/SMI-4.1-pluto-M2060407) id AA01009; Sat, 18 Jul 09 01:06:59 PDT Date: Sat, 18 Jul 2009 01:04:19 -0700 From: perryh@pluto.rain.com To: efinley.lists@gmail.com Message-Id: <4a618203.bzziFY80xJl2pRP3%perryh@pluto.rain.com> References: <20090715194718.GA16401@Grumpy.DynDNS.org> <4a602cad.8BLh4Iukknk6sHl6%perryh@pluto.rain.com> <54e63c320907171229o3e29d0ffo9904bc3d321e01be@mail.gmail.com> In-Reply-To: <54e63c320907171229o3e29d0ffo9904bc3d321e01be@mail.gmail.com> User-Agent: nail 11.25 7/29/05 Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Cc: dkelly@hiwaay.net, FreeBSD-Questions@freebsd.org Subject: Re: 5000' ethernet? X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sat, 18 Jul 2009 08:11:56 -0000 Elliot Finley wrote: > A T1 can only run about 600 feet. Yes, that's right, 600 feet. > When people talk about T1s running long distances, the reference > to 'T1' is only the signalling at the end. In the middle, that > "T1" will be carried by other methods such as SONET over fiber for > very long distances. For the "last mile" it will be carried on > HDSL or similar technology. Or if it's a fairly long copper path, > it can be carried on T-carrier. I suspect T-carrier is probably the technology I'm thinking of, which would have been sufficient to reach from "practically anywhere" to a telco switching center, even back in the mid-1970's when a "T1" was considered blazingly fast (and neither fiber nor HDSL was at all widely used, if they even existed).