Return to BSD News archive
Path: euryale.cc.adfa.oz.au!newshost.carno.net.au!harbinger.cc.monash.edu.au!news.cs.su.oz.au!metro!metro!munnari.OZ.AU!news.ecn.uoknor.edu!solace!mn6.swip.net!seunet!news2.swip.net!nike.volvo.se!cyklop.volvo.se!peter From: peter@cyklop.volvo.se (peter hakanson) Newsgroups: comp.unix.bsd.misc,comp.unix.bsd.bsdi.misc,comp.unix.bsd.freebsd.misc,comp.unix.bsd.netbsd.misc Subject: Re: Running several networking cards in one system? Followup-To: comp.unix.bsd.misc,comp.unix.bsd.bsdi.misc,comp.unix.bsd.freebsd.misc,comp.unix.bsd.netbsd.misc Date: 17 Jan 1997 19:28:53 GMT Organization: Volvo Corp. Lines: 57 Message-ID: <5bojtl$hoq@nike.volvo.se> References: <6OBfLaMbNgB@me-tech.pfm-mainz.de> <5bo2rh$k6b@innocence.interface-business.de> NNTP-Posting-Host: cyklop.volvo.se X-Newsreader: TIN [version 1.2 PL2] Xref: euryale.cc.adfa.oz.au comp.unix.bsd.misc:1939 comp.unix.bsd.bsdi.misc:5631 comp.unix.bsd.freebsd.misc:34164 comp.unix.bsd.netbsd.misc:5189 The load balancing could (anyone surpriced ?) easily be done with real (aka cisco) routers. Is'nt this discussion a litte out of track now ? J Wunsch (j@ida.interface-business.de) wrote: : mschmidt@me-tech.PFM-Mainz.de (Michael Schmidt) wrote: : > > You can have a dozen of network cards in a BSD : > > system (but not in a PC, since you'll run out of IRQ lines :). : > : > Well, meanwhile I have heard of networking cards with several ports on each : > card. Putting several of these cards in a system then you should have more : > than what I have been asking for... : Sure, this is possible. Put two of them into one box, and you've got : 8 ethernet interfaces. With IP, this requires 8 different IP : addresses (of course), so you can route packets into 8 different : directions. : What you still _can't_ do however is: : +---------+ +---------+ : | Box 1 | | Box 2 | : |192.168.1| |192.168.1| : | .1 o-----------------------o .2 | : | | | | : | .9 o-----------------------o .10 | : | | | | : | .17 o-----------------------o .18 | : | | | | : | .25 o-----------------------o .26 | : | | | | : | | | | : +---------+ +---------+ : ...and then try sending something in a single connection from Box 1 to : Box 2, hoping that the traffic will be distributed across all 4 wires. : This is the way IP works: you are not going to connect to another : _machine_, but to another IP address. Sitting on box 1, you have to : decide for an outgoing request whether it should go to 192.168.1.2, : 192.168.1.10, 192.168.1.18, or 192.168.1.26. Depending on which of : these addresses you're using, you select the local interface und thus : the wire that will be used. : If you're looking into increasing throughput, it's probably better to : switch to 100 Mbit/s Ethernet, or to FDDI. : -- : J"org Wunsch Unix support engineer : joerg_wunsch@interface-business.de http://www.interface-business.de/~j -- -- <peter.devnull@cyklop.volvo.se> (remove ".devnull" before use!) Peter Hakanson VolvoData Dep 2580 phone +46 31 66 74 27