The data available through the performance monitor interface is organized into major categories and subcategories as shown in Table 1. Typically, collection requests are made at the major category level, with the option of specifying multiple subcategories. Collect Performance Data CNM RUs can also combine major category requests, with some restrictions. Stop All Performance Data Collection CNM RU allows the monitor to stop all collections with one request. For virtual route data requests, specification of the resources to be controlled, or target resource set, is specified as follows:

• A single VR (all Transmission Priorities included)
• All virtual routes to a destination subarea
• All routes.

For RTP connection data requests, the target resource set consists of all RTPs between the host VTAM® and a given CP in the network.