For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

Qasim's avatar
Qasim
Icon for Cirrostratus rankCirrostratus
Jun 03, 2019

GTM + LTM-VS+Irule and dynamic failover

Hi,   I need a little help here. I have two DCs so two ltms and GTMs. On LTMs I am using an Irule which means the VS don't go down if the pool goes do gown. hence the wide IP on GTM doesnt see ...
Lee_Sutcliffe's avatar
Lee_Sutcliffe
Icon for Nacreous rankNacreous
Jun 12, 2019

You could customise your health monitor on GTM to mark the server down if it receives a certain response such as "ERROR" or status code of 503. Then Modify your iRule to something like this

 

when HTTP_REQUEST {
    switch -glob [HTTP::host] {
        "abc.com" {
            if {[active_members INT_RTL_abc_8094_POOL] > 0} {
                pool INT_RTL_abc_8094_POOL
            } else {
                HTTP::respond 503 content "ERROR"
            }
        }
        "def.com " {
            if {[active_members INT_RTL_def_9443_POOL] > 0} {
                pool INT_RTL_def_9443_POOL
            } else {
                HTTP::respond 503 content "ERROR"
            }
        }
    }
}