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Donster_297784's avatar
Donster_297784
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Apr 19, 2017
Solved

Active/Passive VIP - 2 different DC's

Hey guys,   Just working on a VIP deployment which will see an active passive topology but based across 2 DC's each having their own HA pair. I was thinking about priority groups in terms of havin...
application delivery
iRules
LTM
  • Samir_Jha_52506's avatar
    Samir_Jha_52506
    Apr 19, 2017

    Suppose you have 2 group Servers. DC1 Servers & DC2 Server. On Priority Group Activation

    Commom_pool_DC Method: Load Balancing Method & Priority Group Activation (1) Available Member

    1) x.x.x.x:xx Priority 10

    2) x.x.x.y:xx Priority 10 3) x.x.x.y:xx Priority 10

    4) a.a.a.a:pp Priority 20 5) a.a.a.a:pp Priority 20 6) a.a.a.a:pp Priority 20

    If minimum available member will be lesser then 1 then traffic will move to other DC servers. Assign to VIP.

    Other option to create two VIP with respect to DC. Apply iRule to VIP-1

            when HTTP_REQUEST {
             if { [active_members [LB::server pool]] == 0 }
                 { HTTP::redirect "http://VIP2.com"
             }
            }

    Paste if any problem

Samir_Jha_52506's avatar
Samir_Jha_52506
Icon for Noctilucent rankNoctilucent

Suppose you have 2 group Servers. DC1 Servers & DC2 Server. On Priority Group Activation

Commom_pool_DC Method: Load Balancing Method & Priority Group Activation (1) Available Member

1) x.x.x.x:xx Priority 10

2) x.x.x.y:xx Priority 10 3) x.x.x.y:xx Priority 10

4) a.a.a.a:pp Priority 20 5) a.a.a.a:pp Priority 20 6) a.a.a.a:pp Priority 20

If minimum available member will be lesser then 1 then traffic will move to other DC servers. Assign to VIP.

Other option to create two VIP with respect to DC. Apply iRule to VIP-1

        when HTTP_REQUEST {
             if { [active_members [LB::server pool]] == 0 }
                 { HTTP::redirect "http://VIP2.com"
             }
            }

Paste if any problem

Donster_297784's avatar
Donster_297784
Icon for Nimbostratus rankNimbostratus
Apr 19, 2017

Much appreciated. This is what I had in my mind but just wanted to cement it and your example is perfect.