Date: Wed, 9 Apr 2003 23:32:40 +0200 From: Vincent Zee <basics@zenzee.cistron.nl> To: FreeBSD Questions <freebsd-questions@freebsd.org> Subject: Re: Strange network behaviour Message-ID: <20030409233240509711.GyazMail.basics@zenzee.cistron.nl> In-Reply-To: <44of3fv21k.fsf@be-well.ilk.org> References: <20030407233411204005.GyazMail.basics@zenzee.cistron.nl> <44of3fv21k.fsf@be-well.ilk.org>
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On 09 Apr 2003 16:39:03 -0400, Lowell Gilbert wrote:
> Vincent Zee <basics@zenzee.cistron.nl> writes:
>
>> I am really at a loss at the moment.
>>
>> I have a 100baseT network at home and all connected machines have 100Mb
>> network cards.
>> When I upload mp3 files from my ibook to the FreeBSD server the speed
>> drops to 100kb/s.
>>
>> This only happens between these two particular machines. These same
>> machines connected to other machines give the expected transmission
>> speeds. I checked cables, switches and router but found nothing
>> unexpected.
>>
>> Any hints, ideas or even solutions are most welcome.
>>
>> The FreeBSD machine is running 4.7 and the ibook 10.2.4
>
> This sounds a lot like a duplex mismatch.
> Check the collision count.
Hi Lowell,
thank you for your answer(:-))
Here is the ifconfig output for the nic in the freebsd machine:
dc0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet 192.168.1.10 netmask 0xffffff00 broadcast 192.168.1.255
inet6 fe80::248:54ff:fe12:c767%dc0 prefixlen 64 scopeid 0x1
ether 00:48:54:12:c7:67
media: Ethernet autoselect (100baseTX <full-duplex>)
status: active
Here is the ifconfig output for the nic in the ibook:
en0: flags=8863<UP,BROADCAST,SMART,RUNNING,SIMPLEX,MULTICAST> mtu 1500
inet6 fe80::20a:95ff:fe67:2460%en0 prefixlen 64 scopeid 0x4
inet 192.168.1.3 netmask 0xffffff00 broadcast 192.168.1.255
ether 00:0a:95:67:24:60
media: autoselect (100baseTX <full-duplex>) status: active
supported media: none autoselect 10baseT/UTP <half-duplex>
10baseT/UTP <half-duplex,hw-loopback> 10baseT/UTP <full-duplex>
10baseT/UTP <full-duplex,hw-loopback> 100baseTX <half-duplex> 100baseTX
<half-duplex,hw-loopback> 100baseTX <full-duplex> 100baseTX <full-
duplex,hw-loopback>
Here is the output of netstat -i during a transmission of a 14 MB file.
-bash-2.05b$ netstat -i
Name Mtu Network Address Ipkts Ierrs Opkts Oerrs
Coll
dc0 1500 <Link#1> 00:48:54:12:c7:67 5734078 0 5911495 0
0
dc0 1500 192.168.1 freeserv 5728716 - 5910566 -
-
dc0 1500 fe80:1::248 fe80:1::248:54ff: 0 - 0 -
-
lp0* 1500 <Link#2> 0 0 0 0
0
faith 1500 <Link#3> 0 0 0 0
0
lo0 16384 <Link#4> 375 0 375 0
0
lo0 16384 ::1 ::1 0 - 0 -
-
lo0 16384 fe80:4::1 fe80:4::1 0 - 0 -
-
lo0 16384 your-net localhost 375 - 375 -
-
ppp0* 1500 <Link#5> 0 0 0 0
0
sl0* 552 <Link#6> 0 0 0 0
0
/\
Vincent
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