From owner-freebsd-questions Tue Jun 11 10:31:24 1996 Return-Path: owner-questions Received: (from root@localhost) by freefall.freebsd.org (8.7.5/8.7.3) id KAA13928 for questions-outgoing; Tue, 11 Jun 1996 10:31:24 -0700 (PDT) Received: from mail.rwth-aachen.de (mail.RWTH-Aachen.DE [137.226.144.9]) by freefall.freebsd.org (8.7.5/8.7.3) with ESMTP id KAA13916 for ; Tue, 11 Jun 1996 10:31:19 -0700 (PDT) Received: from gilberto.physik.rwth-aachen.de (gilberto.physik.rwth-aachen.de) by mail.rwth-aachen.de (PMDF V5.0-4 #13110) id <01I5SL7VC4N4001V0J@mail.rwth-aachen.de>; Tue, 11 Jun 1996 19:30:46 +0100 Received: (from kuku@localhost) by gilberto.physik.rwth-aachen.de (8.6.11/8.6.9) id TAA01947; Tue, 11 Jun 1996 19:19:33 +0200 Date: Tue, 11 Jun 1996 19:19:32 +0200 (MET DST) From: "Christoph P. Kukulies" Subject: Re: FreeBSD as a 100Mbit router In-reply-to: <9606111659.AA25077@halloran-eldar.lcs.mit.edu> To: wollman@lcs.mit.edu (Garrett Wollman) Cc: kuku@gilberto.physik.rwth-aachen.de, freebsd-questions@freefall.FreeBSD.org Reply-to: Christoph Kukulies Message-id: <199606111719.TAA01947@gilberto.physik.rwth-aachen.de> MIME-version: 1.0 X-Mailer: ELM [version 2.4ME+ PL16 (25)] Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7bit Sender: owner-questions@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk > < said: > > > Anyone having experience with 100Mbit technology? > > I'm thinking of building a router from our campus FDDI ring to > > 100MBit Fast Ethernet. > > Using a P5 and PCI bus what hardware could be recommended? > > Something based on a Triton or Triton II chipset (or whatever Intel > has decided to call them this week). The P6 chipsets are not as good > as yet. For the Ethernet, I would recommend any board supported by > the `de' driver; we use DEC DE500-XAs because they were the only ones > available when we bought them. For FDDI, there is only one choice; > the only driver we have is for the the DEC DEFPA card. > > > What router throughput could be expected? > > You should be able to forward large packets at line rate. Smaller > packets are significantly more expensive. > > > BTW, how reliable is 100BaseT technology? > > As reliably as regular Ethernet, provided you stay within the design > limits. Thanks for the information and thanks to others who answered to my question. One last question: Specs/Design limits, cards etc. - is there a web site carrying info on these issues? > > > What does the physical layer look like? Twisted pair phone line > > (2 wire, shielded)? what type are the connectors and wall outlets? > > It's category 5 UNshielded twisted-pair centered in an eight-position > modular connector (RJ-45? you may have a different local standard > number). > > -GAWollman > > -- > Garrett A. Wollman | Shashish is simple, it's discreet, it's brief. ... > wollman@lcs.mit.edu | Shashish is the bonding of hearts in spite of distance. > Opinions not those of| It is a bond more powerful than absence. We like people > MIT, LCS, ANA, or NSA| who like Shashish. - Claude McKenzie + Florent Vollant > --Chris Christoph P. U. Kukulies kuku@gil.physik.rwth-aachen.de