I have 5 WebSphere Application Servers behind one IHS Server with simple round-robin load balancing.

I need to monitor the IHS HTTP Plugin to tell me when an instance is 'Marked as down', that's not an issue, an entry in the plugin log tells me that.

How can I tell when the Plugin determines that the instance is back up? My goal is to put in place some automatic notification when an instance goes down and then 'clear' the notification when the instance is available.