Date: Sun, 10 Sep 2000 15:36:06 -0400 From: Laurence Berland <stuyman@confusion.net> To: sthaug@nethelp.no Cc: mike@mikesweb.com, wizard@sybaweb.co.za, freebsd-isp@FreeBSD.ORG Subject: Re: NIC settings Message-ID: <39BBE2A6.76BA1145@confusion.net> References: <4.3.2.7.2.20000910152245.00b83240@mail.mikesweb.com> <15676.968614347@verdi.nethelp.no>
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Should not the router on the T1 be performing some sort of cacheing so that packets don't get retransmitted across the T1 every time a collision occurs? sthaug@nethelp.no wrote: > > > My reasoning was because of all the collisions, data packets were being > > resent at a high rate, filling up my T1s quicker, and causing a lot of > > interface resets on my router. When I went to a switch, I noticed about a > > 10% decrease in network traffic.. > > Then I think you should look for other causes for this change. A collision > does *not* result in a whole packet being "wasted" (as many people seem to > think) - it uses *up to* (512 + 32) bit, ie. 68 byte. You'd need a lot of > very small packets, and a rather high collision rate, to get a 10% increase > in traffic due to collisions. > > Steinar Haug, Nethelp consulting, sthaug@nethelp.no > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-isp" in the body of the message To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message
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