From owner-freebsd-questions Tue Nov 25 19:46:13 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id TAA11467 for questions-outgoing; Tue, 25 Nov 1997 19:46:13 -0800 (PST) (envelope-from owner-freebsd-questions) Received: from out1.ibm.net (out1.ibm.net [165.87.194.252]) by hub.freebsd.org (8.8.7/8.8.7) with ESMTP id TAA11459 for ; Tue, 25 Nov 1997 19:46:09 -0800 (PST) (envelope-from mouth@ibm.net) Received: from slip129-37-53-85.ca.us.ibm.net (slip129-37-53-85.ca.us.ibm.net [129.37.53.85]) by out1.ibm.net (8.8.5/8.6.9) with SMTP id DAA291680; Wed, 26 Nov 1997 03:45:37 GMT From: mouth@ibm.net (John Kelly) To: "keith Spencer" Cc: questions@FreeBSD.ORG Subject: Re: Can 2 modems increase bandwidth? Date: Wed, 26 Nov 1997 04:46:41 GMT Message-ID: <347da364.15283924@smtp-gw01.ny.us.ibm.net> References: <199711252258.IAA09286@smmcroute.smmc.qld.edu.au> In-Reply-To: <199711252258.IAA09286@smmcroute.smmc.qld.edu.au> X-Mailer: Forte Agent 1.01/16.397 MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by hub.freebsd.org id TAA11460 Sender: owner-freebsd-questions@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk On Wed, 26 Nov 1997 10:27:32 +0000, "keith Spencer" wrote: >How is it if indeed at all possible to have 2 modems dial out to two >dialin accounts at my ISP and have modem traffic go through one modem >or the other depending on which is free or something like this? >i.e. increase my bandwidth for my school Internet access. >help...what is the topic called??? Multilink PPP, or MLPPP. I think there is a software implementation but your ISP may not support it on their end. A hardware implementation is easier to set up. I'm using an external 3Com Impact IQ ISDN T/A running Multilink PPP at 128k to my ISP's Livingston Portmaster 3. The 3Com is connected to my serial card which has clock speed jumpers for running the serial port at 230k, so I get the full 128k bandwidth across the ISDN line. I consistently get FTP throughput of 13.5 kBytes per second. The 3Com has Stac compression which is compatible with the ISP's Livingston PM3. If you can get ISDN from an ISP it's more reliable than trying to bond multiple analog modems with software MLPPP. John