Categories allow you to organize objects in RTMT, such as performance monitoring counters and devices. For example, the category, Cisco SIP Proxy, allows you to monitor performance-monitoring counters in graph format for the SIP proxy. If you want to monitor more counters, you can configure a new category and display the data in table format.
A category comprises a group of monitored performance counters. A tab in the RTMT monitoring pane contains the category name. All performance counters that are monitored in this tab belong to a category. The system polls the performance counters in the tab at the same rate, with each category configured to have its own polling rate.
If you perform various searches for devices, for example, for phones, gateways, and so on, you can create a category for each search and save the results in the category.
You can create custom categories in the RTMT monitoring pane to view information that helps you troubleshoot specific performance, system, or device problems. If your system is experiencing performance problems with specific objects, create custom categories to monitor the performance of the counters within the object. If the system is experiencing problems with specific devices, create custom categories to monitor the devices in your system. In addition, you can create alert notifications for counters and gateways in these custom categories. To create custom categories, you add a new category tab. When the tab is created, you specify the specific performance counters, devices, and alerts within that tab and then save your custom category by using Profile.