From owner-freebsd-questions Wed Nov 5 17:51:08 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.7/8.8.7) id RAA28062 for questions-outgoing; Wed, 5 Nov 1997 17:51:08 -0800 (PST) (envelope-from owner-freebsd-questions) Received: from conductor.synapse.net (conductor.synapse.net [199.84.54.18]) by hub.freebsd.org (8.8.7/8.8.7) with SMTP id RAA28057 for ; Wed, 5 Nov 1997 17:51:03 -0800 (PST) (envelope-from evanc@synapse.net) Received: (qmail 1399 invoked from network); 6 Nov 1997 01:50:52 -0000 Received: from cello.synapse.net (199.84.54.81) by conductor.synapse.net with SMTP; 6 Nov 1997 01:50:52 -0000 Date: Wed, 5 Nov 1997 20:50:51 -0500 (EST) From: Evan Champion To: Brian Somers cc: freebsd-questions@FreeBSD.ORG Subject: Re: sio buffer overflows In-Reply-To: <199711060008.AAA03991@awfulhak.demon.co.uk> Message-ID: MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII Sender: owner-freebsd-questions@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk On Thu, 6 Nov 1997, Brian Somers wrote: > What's a 16650 (is this the thing w/ the 256 byte FIFO) ? 32 byte, on-chip flow control and 460.8 Kbps max port speed. > ppp doesn't support multilink PPP yet. This is a Bitsurfr Pro which takes care of the multilinking and passes a pure PPP datastream to the serial port. The software needn't know or care about multilinking. > If the port speed is set to 57600, then that's the maximum data rate > (although you may get more if you're using PREDICTOR1 and/or VJ > compression). No, 16650's run the port at 4x whatever speed you set it to. So a port set at 57600 is treated as 230.4 Kbps. It is a rather nice way of getting around software that doesn't understand the higher port speeds and works everywhere. Evan