Interrogate Pool Member Priority Group from iRule

danA Sadly, I'm not aware of a native way of providing the priority group number in an HTTP header field so that the CDN can see this as a degraded virtual server. I believe the better option here would be to have each pool member in each priority group have a unique response to a specific HTTP path so if the CDN sees a certain response it will see it as a degraded VS. For instance priority 0 pool members in path /healthmonitor could have a response string of "Priority 0 active" and then the pool members in 100 could have /healthmonitor with a response of "Priority 100 active" which would then kick off a degraded event from the CDN side of things.