How to configure two network cards in failover configuration

rajesh.bahl · 11-05-2009, 12:48 PM

Dear All,

Recently I installed CentOS 5.4 on a server having two ethernet cards. The system is up and running and both the network cards are working okay.
I need to configure these two cards in fail over mode ( i.e if one fails the other takes over automatically ). I need to keep the IP of the "taking over" card as the same as of "failed card".

Can some one help in doing so ?

Thanks
rajesh.bahl

nimnull22 · 11-05-2009, 02:25 PM

First of all you have to find out WHAT and HOW to check the card failure.
Turn second card up is not a problem: ifup eth"N"+ change routing to it.

TB0ne · 11-05-2009, 02:52 PM

Quote:

Originally Posted by rajesh.bahl

Dear All,

Recently I installed CentOS 5.4 on a server having two ethernet cards. The system is up and running and both the network cards are working okay.
I need to configure these two cards in fail over mode ( i.e if one fails the other takes over automatically ). I need to keep the IP of the "taking over" card as the same as of "failed card".

Can some one help in doing so ?

Thanks
rajesh.bahl

Sure...Google can. Look up "channel bonding", see an example on this page:
http://www.linuxtopia.org/online_boo...nterfaces.html

wfh · 11-06-2009, 01:01 AM

http://www.riccardoriva.com/archives/686