Real Time Monitoring Tool (RTMT)
The RTMT tool is provided by Cisco with all Cisco Unified Communications Manager (CUCM) and Cisco Unified Presence Server (CUPS) systems. Using RTMT an administrator can get a good idea of the general health of a system. RTMT has come a long way since it was first introduced in Call Manager 3.1.
There are various tools in RTMT worth looking into, today I am focusing on using the Alert Central tool. Specifically, creating custom alerts.
RTMT can be configured to monitor basic thresholds and then trigger an alert when a specific threshold is violated. There are essentially three parts to an alert:
- The element being monitored
- The threshold monitored
- The alert action
RTMT comes with a set of “canned” alerts. You can view these alerts when launching RTMT and going to System>Tools>Alerts>Alert Central
Canned alerts are found under the “System” and “CallManager” tabs. You will notice that there is also a “Custom” tab. One would be inclined to think that you could browse to this tab and use some context based menu to add a custom alert. One would be wrong.
Adding a Custom Alert
To add a custom alert, you must use the Performance viewer.
- Go to System>Performance>Open Performance Monitoring
- Under the “StandAloneCluster” context, choose a node you are interested in monitoring
- Expand the node to expose the counter classes and choose a class (e.g. Cisco MGCP Gateways)
- Choose a counter object (e.g. PRIChannelsIsActive)
- Some counter objects have “instances”. For example, on Cisco MGCP Gateway classes, there can be zero or more registered gateways. Each gateway will spawn a single instance.
- Add your instance and/or counter to the monitoring display by double clicking, right clicking and choosing “Add” from the context menu, or “drag and drop”
- Right click on the new counter in the monitoring window and choose ” Set Alert Properties”
- Provide a description and click Next
- Specify the threshold, calculation method and duration of the alert and click Next
- Set Frequency and Schedule parameters and click Next
- Specify if you want to generate an E-mail alert (otherwise, the alert is only on screen), configure a custom E-mail message, and choose the appropriate alert action. Once configured, click Save.
Once you save the alert, you can now view it under the Custom tab in Alert Central. From here you can enable, disable, or delete the new alert.
While RTMT isn’t a replacement for a well designed and implement voice management solution, it can augment an existing solution or be used to catch things an existing solution may miss. Of course, reality sometimes dictates a gap between actual deployment time of the CUCM system and the actual deployment time of a voice aware management solution. RTMT is a decent option for filling this gap.