Date: Sat, 29 Jun 1996 14:30:28 -0400 (EDT) From: Henry Spencer <henry@zoo.toronto.edu> To: "Jacob M. Parnas" <jparnas@jparnas.cybercom.net> Cc: Gary Palmer <gpalmer@FreeBSD.ORG>, hardware@FreeBSD.ORG, bsdi-users@bsdi.com Subject: Re: muliport boards - building a PPP dialup server Message-ID: <Pine.3.89.9606291403.B10167-0100000@zoo.toronto.edu> In-Reply-To: <199606291317.JAA07529@jparnas.cybercom.net>
next in thread | previous in thread | raw e-mail | index | archive | help
> I thought the question was on what to expect from UARTS for high speed > applications. I think Henry suggested using a local ethernet to connect to > a ISP ethernet <-> ethernet<->ethernet WAN ISDN connection or high > speed modem <-> home ethernet. Just to clarify... My suggestion is that you do not want a high-speed application which looks like a UART to the software, at all, ever. You want high-speed applications to come in via Ethernet, so your software is dealing with a packet at a time rather than a character at a time. It's worth the overhead of having to set up a 0.5m-long Ethernet, which is fairly trivial nowadays. Yes, there are people who build high-speed interfaces that look like UARTs, and they can be cheaper than the ones that sit on the other side of an Ethernet. You get what you pay for. Henry Spencer henry@zoo.toronto.edu
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?Pine.3.89.9606291403.B10167-0100000>