I see collisions on my NIC eth0 interface - HELP!

[QMan8]

Greetings,
When I run ifconfig on my Linux server, I see a lot of collisions on the interface eth0, which caused sessions to disconnect and kicked out users. However, my Cisco switch is not registering any collisions. I have the port on the Cisco switch set to 100Mbps full-duplex. How do I check to make sure that I am not having problems on my intergrated NIC card. I am new with to the Linux As 2.1 environment, so please be gentle (-:

I just need some guidance what to do to test out the NIC/interface on my Linux server.

If I going to switch out the NIC, how do I do that under Linux?

Thank you in advance.

JB

eth0 Link encap:Ethernet HWaddr 00:0BB:E6:F4:FD
inet addr:192.168.11.115 Bcast:192.168.255.255 Mask:255.255.0.0
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:338473 errors:0 dropped:0 overruns:0 frame:0
TX packets:118437 errors:0 dropped:0 overruns:0 carrier:0
collisions:582 txqueuelen:100
RX bytes:33389366 (31.8 Mb) TX bytes:57095808 (54.4 Mb)
Interrupt:17 Memory:eff10000-eff20000

lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
UP LOOPBACK RUNNING MTU:16436 Metric:1
RX packets:12145 errors:0 dropped:0 overruns:0 frame:0
TX packets:12145 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:11060701 (10.5 Mb) TX bytes:11060701 (10.5 Mb)

 

[marsd]

Late collisions are(as you guessed)typically indicative
of a full duplex mismatch. If the switch port is set to full
duplex it probably doesn't care if a connected port
accumulates errors.

I could guess the manufacturer by mac address prefix, but
why don't you tell us what the nic is and what kernel
version you are ruuning?
Cabling, etc.. may also play a part in this.

 

[QMan8]

I am currenty running Linux As 2.1 on a Dell server. According to the 'lsmod' command, it came back with a bcm5700 NIC. My Kernel is 2.4.9-e.3smp

Thanks!