Mar 27, 2026 - For details about updated CVE-2025-53521 (BIG-IP APM vulnerability), refer to K000156741.

Forum Discussion

Manikanta's avatar
Manikanta
Icon for Nimbostratus rankNimbostratus
Jun 19, 2019

VIP monitoring multiple Pools

Our application is having a specific requirement where based on the URI we route the request between multiple Pools using an irule.   The problem we are having is on health check part, where cur...
application delivery
BIG-IP DNS
irules
LTM
Manikanta's avatar
Manikanta
Icon for Nimbostratus rankNimbostratus
Jun 20, 2019

Hi Dario,

 

Which pool you assigned to the VIP. Is it P-ABC_80 or P-DEF_80? If either of the pools (P-ABC_80 or P-DEF_80) is down then the entire VIP will be marked down?

 

How you are doing this? I am thinking VIP health status is based on the default Pool health status.

 

By the way we are running 12.1.3 code.

Dario_Garrido's avatar
Dario_Garrido
Icon for Noctilucent rankNoctilucent
Jun 20, 2019

No, the status of the VS depends of all the pools assigned to the it.

In the last example I'm not using default pool, but it's the same with it.

ltm virtual VS-TEST_2000 {
    destination 10.130.40.150:sieve-filter
    ip-protocol tcp
    mask 255.255.255.255
    pool P-GHI_80
    profiles {
        http { }
        tcp { }
    }
    rules {
        RULE_MarkDown
    }
    source 0.0.0.0/0
    source-address-translation {
        type automap
    }
    translate-address enabled
    translate-port enabled
    vs-index 18
}

In 12.1.3 the behavior is the same...

Please, share your config (VS, Pool, iRule,...)

KR,

Dario.