weird network performance

From: Ognen Duzlevski (maketo_at_mx.freeshell.org)
Date: 10/31/03 

Date: Fri, 31 Oct 2003 03:55:04 +0000 (UTC)

Hi,

I just got in a new Relion 430 server from Penguin Computing. It has three network ports and I am using the 100 Mbit one.

Below is the output of ifconfig:

eth0 Link encap:Ethernet HWaddr 00:E0:81:25:7A:05
          inet addr:128.206.22.161 Bcast:128.206.23.255 Mask:255.255.252.0
          UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
          RX packets:7239733 errors:120306 dropped:0 overruns:10 frame:120306
          TX packets:1631760 errors:0 dropped:0 overruns:0 carrier:0
          collisions:274094 txqueuelen:100
          RX bytes:2672766083 (2548.9 Mb) TX bytes:370619623 (353.4 Mb)
          Interrupt:17 Base address:0xa400 Memory:fd7fe000-fd7fe038

The number of errors is what is puzzling me. The network performance seemed very flaky and slow so I suspected a bad cable. After
changing it, the performance has not changed much and the number of errors continued to grow. I am not really sure what kinds of errors
does the "errors" field refer to. Anyone can shed any light on this and give me an idea of what I am looking for?

Below is some information about the card. Kernel is 2.4.20.

Intel(R) PRO/100 Network Driver - version 2.2.21-k1
Copyright (c) 2003 Intel Corporation
e100: selftest OK.
divert: allocating divert_blk for eth0
e100: eth0: Intel(R) PRO/100 Network Connection
  Hardware receive checksums enabled
e100: eth0 NIC Link is Up 100 Mbps Half duplex

Thanks,
Ognen

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