Nic teaming issue - Redhat Ent. 5

Olano, Aldo aolano at triu.com
Tue Oct 7 12:59:21 CDT 2008


Greetings,

I have a Dell Poweredge 2850 with a set of Broadcom NetXtreme II Gigabit
Ethernet Driver bnx2 v1.4.43-rh (June 28, 2006) running Redhat EA 5.
When I nicteam eth0 and eth1, performance seems to drop by 20-25%.

If I run a process that took 2 hours without nic teaming, under nic
teaming it'll take 2 hours and 30 minutes.

My configuration is pretty basic - it's the usual settings you find in
most of the posts/blogs on the internet.  There's also the additional
two lines to modprobe.conf and the gateway listing to
/etc/sysconfig/network.  I got all that covered, but I'd like to know
how can I improve the performance of the nics? What sort of tweaks can I
try?  Should I got thru the list of ethtools switches?

Best regards,
Aldo

DEVICE=bond0
BOOTPROTO=none
ONBOOT=yes
IPADDR=198.135.32.78
NETMASK=255.255.255.0
NETWORK=198.135.32.0
GATEWAY=198.135.32.1
USERCTRL=no

DEVICE=eth0
BOOTPROTO=none
HWADDR=00:1E:C9:F7:09:BA
ONBOOT=yes
MASTER=bond0
SLAVE=yes
TYPE=Ethernet
USERCTL=no
IPV6INIT=no
PEERDNS=yes
ETHTOOL_OPTS="speed 1000 duplex full autoneg on"

DEVICE=eth1
BOOTPROTO=none
HWADDR=00:1E:C9:F7:09:BC
ONBOOT=yes
MASTER=bond0
SLAVE=yes
TYPE=Ethernet
USERCTL=no
IPV6INIT=no
PEERDNS=yes
ETHTOOL_OPTS="speed 1000 duplex full autoneg on"



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