bring down VS using iRule

Hey Guys, this is a tough one, I've thought about it in the past but couldn't come up with anything.. I can't find doc that references ICMP in the command list, and I'm not sure what event it would fall under because ICMP, even though still at the network layer, is a separate protocol than IP.... so I don't see a event that would support it.. Like you mention it seems to be a fundamental function of a VS... Here's an old post talking about the same issue... http://devcentral.f5.com/Forums/tabid/1082223/asg/50/showtab/groupforums/afv/topic/aff/5/aft/3591/Default.aspx Some interesting ideas.... Can you invoke a bigpipe command or script from an irule? If so, you could use the arp idea in that post.. I'm not to sure about deleting the VS.. as how would you add it back in?