What is Orion APM?

See the following links for information about the Orion Application Performance Monitor:

• How Orion APM Works - By using UDP, TCP, SNMP, and WMI calls to your network framework and  application servers, Orion Application Performance Monitor (APM)  provides real-time feedback on your applications and trending through  statistics stored in the Orion NPM database.
• Requirements for APM v4.2 - Chapter 2 of the APM Admin Guide discusses all the requirements and instructions for installation.