Date: Tue, 24 Oct 2000 17:54:01 +0200 From: Harald Hanche-Olsen <hanche@math.ntnu.no> To: freebsd-mobile@freebsd.org Cc: alex@astro.su.se Subject: Re: Linksys PCMCIA Message-ID: <20001024175401N.hanche@math.ntnu.no> In-Reply-To: <Pine.GSO.4.10.10010212001260.9733-100000@dioscuri> References: <Pine.GSO.4.10.10010212001260.9733-100000@dioscuri>
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+ Alexey Koptsevich <alex@astro.su.se>: | Hello, | | I see that "LINKSYS EtherFast 10/100" is supported by PAO. | But Linksys offers at least 4 such cards: | | PCMPC100 - EtherFast 10/100 PCMCIA Card | http://www.linksys.com/products/product.asp?prid=41&grid=11 I can at least tell you that the above works, since I use it in my own Dell 3500. I run just plain vanilla 4.1-RELEASE. I have run into one problem at home though: When I connect my stationary PC (also running 4.1-RELEASE) and the laptop back-to-back, file transfers from laptop to stationary works fine, but the other way I get 20-30% packet loss and correspondingly horrible transfer times if I run at 100 Mbit/s. If I force the network card on the stationary PC to 10 Mbit/s the Linksys card follows suit automatically, and all is well. At work the problem does not yet appear because our network is still mostly 10 Mbit/s. I have come to believe that the problem is not so much the high bit rate, but rather the arrival of data at a rate of several packets per millisecond, possible with a buffer overflowing somewhere, or interrupts getting lost, or whatever the heck. For if I run a ping -f against the machine, virtually no packets are lost. Maybe there is a way to artificially slow the sender down a bit, so this does not happen? I wonder if the problem would go away if the laptop declared a smaller TCP window, for example. Except I don't know how to tell it to do so. Any other tricks? - Harald To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-mobile" in the body of the message
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