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trx_94323's avatar
trx_94323
Icon for Nimbostratus rankNimbostratus
Jul 20, 2018

IRules status checks of pool members are flagging VIPs as UP / DOWN

Hello Community, When there are IRules that checks the status of a pool A members (i.e. 3 nodes), and if any of the pool A members are UP (i.e. 1 node is up and 2 are down), it will flag the VIP as UP as well, even though the pool B is configured / assigned to the VIP.

 

There's many ways to approach this, but I think the right question is, how do we get the VIP to not react as UP / DOWN when the IRules are just checking the status of pool members?

 

Thoughts anyone?

 

Thanks in advance.

 

application delivery
BIG-IP
iRules

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  • Lee_Sutcliffe's avatar
    Lee_Sutcliffe
    Icon for Nacreous rankNacreous
    Jul 22, 2018

    iRules do not have an affect on the status of the virtual server. This is facilitated by the health monitor that is applied to the pool associated with the virtual server.

     

    The health status filters up (never down) from the node > pool > vs. If the nodes are marked down, is the virtual server. A health monitor with an HTTP monitor could make a pool down, yet the nodes be marked up as they are using ICMP.

     

    If you want your virtual servers to be marked down under a certain condition, you can do this as part of your heath monitor, an iRule can only check the status of the pool and do something depending on what you're looking for, it won't however mark the VS down.