Date: Sat, 10 Aug 2002 10:59:04 +0300 From: "Janne Mattila" <jannemat@saunalahti.fi> To: <freebsd-questions@FreeBSD.ORG> Subject: RE: [freebsd-questions] Slow download from FreeBSD 4.6-RELEASE server; LNE100TX and 3Com 3c905C-TX Message-ID: <003401c24043$ccb70c50$9a51c5c3@Kompuutteri> In-Reply-To: <44hei4umue.fsf@be-well.ilk.org>
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> Sounds like a problem with duplex settings. You've got a hub > in between the two machines, don't you? Our LAN has 100MB Hub, where my NIC, my girlfriend NIC and of course server's second NIC is connected. My network is: FreeBSD Server (which has two 3c905C-TX NIC) Workstation: Win2000 SP2, LNE100TX NIC (My own) Workstation: Win2000 SP2, KNE100TX NIC (My girlfriend) Laptop, HP X3, Win2000, LiteOn Mini PCI or something [10MB Line] <-> FreeBSD, NIC #1 Internet IP, NIC #2 192.168.0.1 <-> HUB <-> Mine and girlfriend machines > Aha! Almost certainly a problem with duplex settings here. Strange... I checked all available modes with "ifconfig -m xl1" (which is our LAN NIC) and changed media setting, then I changed my own win2000 workstation NIC mode and tried FTP, no effect, changed again own NIC media, no effect, went through all media modes on my own workstation, no go. Then I changed server media to another, went through all my workstation NIC mediamodes again, ... basically I tried with all available configuration. Still poor FTP speed, hmm. Maybe I have forgot somehow one combination then. > When you download from the server, the TCP ACKs will come > back almost instantaneously, thus colliding with the next data packet. OK. Yes I have noticed some collision by time to time, from HUB leds. When downloading from Internet, tcpdump did not report any collision though, think I need to test when downloading from LAN. But how TCP ACKs are different when downloading from Internet / LAN? Since I am *always* downloading from server, because it is our gateway. And via same NIC also. > It may just have defaulted to a different set of Ethernet > settings. What setting should work? I'm thinking of changing my NIC to another. It is pretty old, and only NIC which has problems in our network. Thanks for reply! - JM To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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