[LUG] Network speeds

[Mark Mitchell <m.l.mitchell@xxxxxxxxx>]

Dear List,

I'm having a slight problem with my home "network" and I'm not sure
where to start looking for a solution.

The problem is I'm not getting anything like the speeds I should be.
Basically I've got two computers connected via a Netgear 10/100M
Ethernet Switch. One computer is running Mandrake 10 and the other
OpenBSD 3.5. File transfers with sftp are reporting speeds of around
"100KB/s" - I'm not sure if this is Bytes or Bits, but either way it's
a fraction of the 100 Mbits/s I should get.

I checked out the NIC configuration to make sure both cards were
100Mb/s and they both seem to be: ifconfig on Mandrake gives -

eth0      Link encap:Ethernet  HWaddr 00:09:5B:1D:18:3E  
         inet addr:10.0.0.9  Bcast:255.255.255.255  Mask:255.0.0.0
         inet6 addr: fe80::209:5bff:fe1d:183e/64 Scope:Link
         UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
         RX packets:2954050 errors:0 dropped:0 overruns:0 frame:99
         TX packets:2279725 errors:0 dropped:0 overruns:0 carrier:0
         collisions:0 txqueuelen:1000 
         RX bytes:99044883 (94.4 Mb)  TX bytes:170102856 (162.2 Mb)
         Interrupt:3 Base address:0x300 

and OpenBSD gives -

sis0: flags=8843<UP,BROADCAST,RUNNING,SIMPLEX,MULTICAST> mtu 1500
       address: 04:26:02:50:80:00
       media: Ethernet autoselect (100baseTX full-duplex)
       status: active
       inet 10.0.0.3 netmask 0xffffff00 broadcast 10.0.0.255
       inet6 fe80::626:2ff:fe50:8000%sis0 prefixlen 64 scopeid 0x1

I found something on the internet saying problems like this can
sometimes be caused by misconfiguring "duplex" but it wasn't very
specific and I didn't really understand.

I'd be very grateful for any help.

Mark

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