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swjo_264656's avatar
swjo_264656
Icon for Cirrostratus rankCirrostratus
Jan 10, 2018

About i-Rule active_members...

Hi guys.

I`m using i-Rule about using 'active_members'

when CLIENT_ACCEPTED { if {[active_members P-10.10.10.10-80-L3DSR] < 1}{ reject } }

I

ll apply this rule to many virtual server but I don
t want to make rule per vs.

ex) VS-1 / P-1 when CLIENT_ACCEPTED { if {[active_members P-1] < 1}{ reject } }

ex) VS-2 / P-2 when CLIENT_ACCEPTED { if {[active_members P-2] < 1}{ reject } }

not this situation, I want to apply common rule. use one rule to many VS.

is there any method using active_members [default pool] << like this.

thank you.

application delivery
iRules
LTM

1 Reply

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  • Lee_Sutcliffe's avatar
    Lee_Sutcliffe
    Icon for Nacreous rankNacreous
    Jan 10, 2018

    You do not need an iRule for this. You can select 'Action On Service Down' to 'Reject' under the pool configuration.

    That way when the pool is down (active members < 1 ) it will reject subsequent requests

    Alternatively, if you really want to use an iRule, you can retrieve the default pool assigned to the VIP with 

    [LB::server pool]
    - iRule below is untested

    when CLIENT_ACCEPTED { 
    set default_pool [LB::server pool]
    if {[active_members $default_pool] < 1}{ 
        reject 
    }
}