Hi Greg,
You can have the BIG-IP tell the server that the server close the TCP connection using an HTTP 1.1 formatted send string with a Connection header:
GET /monitor_page.html HTTP/1.1\r\nHost: \r\nConnection: Close\r\n
Sessions would be created on the application--not LTM. If you want to tell the server that the session should be removed, you'd need to figure out how the client can do that in an HTTP request and then configure that in the SEND string. If it requires two requests (one to create the session and one to close it) you could create an external monitor which references a shell script to make the two requests. You can find some examples for external monitors in the Monitoring Codeshare (
Click here). Else, is there a page which LTM could monitor for which the server won't generate a session? That might be easier than trying to end the session.
Aaron