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-   -   Static route question (http://www.linuxquestions.org/questions/linux-networking-3/static-route-question-946153/)

jagdip 05-21-2012 09:37 AM

Static route question
 
Hello,

I have a machine which has 4 NICs;let us say NIC1,NIC2,NIC3,and NIC4.
There are 3 VLANs; let us say MGT,BUR,and PROD.
Two of those NICs;NIC1 and NIC2 are on same VLAN (MGT), Gateway, and subnet.
Rest of the three NICs are on seperate VLANs, gateway, and subnet.
I need to setup oracle data guard which will send logs to onsite failover server and off site failover server. I want to send all traffic of logs through MGT VLAN. but there are two NICs configured on it. If I add static route for all traffic going to failover servers through MGT, will it cause issues because i have two NICs on same VLAN?

ilikejam 05-21-2012 02:24 PM

Hi.

You probably want to bond the two interfaces on MGT, and have a single IP shared between them. That way if one interface fails, you'll still have service, and bonding can also load balance in various ways to increase performance (the default is a round-robin which works everywhere, but there are various different modes depending on what support there is in your switches/routers). Once you've got a bond set up, you can just put in whatever routes you want using the bond0 interface instead of ethX.

There are loads of howtos out there - just google 'linux bonding'.

Dave


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