topic Re: network modules in Operating System - Linux

network modules

Adithyan — Mon, 23 Jul 2007 05:43:19 GMT

Hi,

In my servers I have 4 NIC. in the /etc/modprob.conf, it shows the modules used for eth0 and 1. Where shal i find the modules used for eth2 and eth3?

Thanks
Adithyan.

Re: network modules

Stuart Browne — Mon, 23 Jul 2007 06:16:54 GMT

Are all 4 interfaces in use?

If that's the case, I'm going to assume that eth2 and eth3 use the same drivers as eth0 and eth1.

In which case, if you wish to differentiate between the different interfaces, you should use the HWADDR values in /etc/sysconfig/network-scripts/ifcfg-eth*.

Re: network modules

Adithyan — Mon, 23 Jul 2007 06:25:49 GMT

Hi,

in the lsmod command
e1000 109113 0
bnx2 84932 0
these both modules are displayed. Currently eth2 and 3 are up. But in the /etc/modprobe.conf its not mapped to the modules what it uses infact.

Regards

Re: network modules

Alexander Chuzhoy — Mon, 23 Jul 2007 07:22:30 GMT

Try the file /etc/sysconfig/hwconf

locate the occurrences of eth{0,1,2,3} and their driver.

Re: network modules

Adithyan — Mon, 23 Jul 2007 07:49:00 GMT

Thanks Alexander.

Adithyan.

Re: network modules

Sac_3 — Wed, 25 Jul 2007 06:30:21 GMT

Hi Adithyan,

U can even find driver used by an interface using "ethtool -i" command

TEST> ethtool -i eth2
driver: e1000
version: 7.3.15a-NAPI
firmware-version: N/A
bus-info: 06:01.0

Regrads,

SaC

Re: network modules

Ralph Grothe — Wed, 25 Jul 2007 07:10:28 GMT

I am not sure if this is still an issue with current kernels and driver kernel modules.
But for quite some time you needed to pass the kernel the boot param ether, where you would specify irq, base address and name.
For details please see man bootparam, and the Ethernet Devices section there.
There they also refer to this TLDP Ethernet HowTo for multiple devices issues:
http://tldp.org/HOWTO/Ethernet-HOWTO-2.html#ss2.4