> why don't you start with the kernel version and architecture?
> -> uname -a
This server is running centos 3.9
Linux server.domain.com 2.4.21-57.ELsmp #1 SMP Wed May 7 06:10:55 EDT
2008 i686 i686 i386 GNU/Linux
> -> /var/log/messages relevant lines?
There was nothing out of the ordinary in /var/log/messages. The
logging just stops after the network card drops offline. dmesg also
shows nothing out of the ordinary when the driver is loaded. The
network card works fine until it is under heavy load.
> -> /sbin/ifconfig -a
eth0 Link encap:Ethernet HWaddr FF:FF:FF:FF:FF:FF
inet addr:10.100.1.200 Bcast:10.100.255.255 Mask:255.255.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:56261 errors:0 dropped:0 overruns:0 frame:0
TX packets:30199 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:5969478 (5.6 Mb) TX bytes:3305868 (3.1 Mb)
Interrupt:26
(MAC address was changed by me)
> -> ethtool eth0 and ethtool eth1
Settings for eth0:
Supported ports: [ MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Advertised auto-negotiation: Yes
Speed: 1000Mb/s
Duplex: Full
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: g
Wake-on: d
Current message level: 0x000000ff (255)
Link detected: yes
Settings for eth1:
Supported ports: [ MII ]
Supported link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Supports auto-negotiation: Yes
Advertised link modes: 10baseT/Half 10baseT/Full
100baseT/Half 100baseT/Full
1000baseT/Half 1000baseT/Full
Advertised auto-negotiation: Yes
Speed: Unknown! (0)
Duplex: Half
Port: Twisted Pair
PHYAD: 1
Transceiver: internal
Auto-negotiation: on
Supports Wake-on: g
Wake-on: d
Current message level: 0x000000ff (255)
Link detected: no
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