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Old 05-21-2012, 10:37 AM   #1
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Post Static route question


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?
Old 05-21-2012, 03:24 PM   #2
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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'.



oracle, static route, vlan

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