Using the alarm and event logs helps you isolate the source of the problem, usually through the divide and conquer approach which involves:
Segmenting the configuration
Testing equipment/connections
Interpreting the results
Confirming/denying the relevance of the results
Repeating until isolation successfully points to the problem source
Tip:
It is essential that you have a thorough knowledge of the equipment and configuration and have pertinent information at hand to quickly and effectively diagnose and fix problems.
Although careful examination of the alarm/event logs is the key to understanding what the problem is, you probably do not want to look at the entire log for the following reasons:
The maintenance subsystem gathers detailed alarm and error information from three major processes:
You can view the Alarm Log through any of the three different interfaces listed in the table.
Table 1: Interfaces
Interface |
Connection |
Description |
Maintenance Web pages |
Network through server’s IP address |
Recommended for most maintenance-related functions and information. The report is divided into two main sections:
See Viewing the Web interface logs for more information about how to access and interpret the various logs. |
System Access Terminal (SAT) |
Through the network or dedicated port on server |
Main Communication Manager interface from which you can start an:
Filtering event report: logs and explains specific events that occur during call processing. Often, these are not problems that require immediate action, but are informational.
Filtering alarm report: the main source for Communication Manager alarms, which include out-of-range temperature or voltage values, broken or fluctuating connections, defective hardware, etc.
|
Command Line Interface (CLI) |
Through the network or dedicated port on server |
Recommended only when the Maintenance Web pages or the SAT are not accessible. See Commonly-accessed directories and files on Linux servers for information about the types of files and logs and their locations. |