IsItUp monitors multiple "pingable" TCP/IP devices around the clock and notifies you, via email or pager, of the status of that device, when it goes down, and when it comes back up! IsItUp maintains complete statistics for each device it monitors, up time, maximum response time, minimum response time, standard deviation and a host of other measurements. What's more, it tracks the last successful and last failed Traceroute to a destination so it can determine where the break-down occurred. This is a great feature for tracing intermittent problems that are not caused by the system being monitored.