Maintaining System Performance

The system stores the system log file in the same directory in which you installed the software (.../opt/cemf/logs). System log files are stored in Cisco IOS, not in CDM.

The system message logging facility allows you to:

• Monitor and troubleshoot your system

• Select the severity levels of the captured information

You can view or print system log information in the SysLog Messages window. The SysLog Messages window contains a list of network components from which you select to view error and status messages. Examples of messages that may appear in the SysLog Messages window for a component are alarms or loss of traffic.

Note   User-initiated events are logged in the Command Log window (refer to the "Viewing the Command History File" section for details.)

Table 6-1: SysLog Messages Window—Severity Level Definitions

Severity Level	Definition
Emergency	The system is unusable.
Alert	Immediate action is required.
Critical	Prompt action is required.
Error	Necessary action is required.
Warning	A minor condition has occurred.
Notice	A normal but significant condition has occurred.
Info	Informational messages are captured.
Debug	Debugging messages are captured.

The Emergency severity level is the most severe type of message generated by the system, and the Debug severity level is the least severe type of message. From the SysLog Messages window, you can select a single severity level for the error and status messages you want to view, or you can select a range of severity levels.

For example, if you select a maximum severity level of:

• Emergency—The window displays only the error and status messages with an Emergency severity level.

• Warning—The window displays all messages from the Warning severity level up to the Emergency severity level (within the date range you selected), and ignores all messages below the Warning severity level.

• Debug—The window displays all messages for all severity levels (within the date range you selected).

Note   After you configure or change the parameters, the system does not dynamically update the list of events in the SysLog Messages area. Only the system log messages that have been generated since you configured the parameters display in the SysLog Messages area.

To view the SysLog Messages window, follow these steps:

Step 2   Select Cisco DSL Manager > Physical > Chassis > View > SysLog Messages.

Step 3   From the list box on the left side of the window, select the chassis for which you want to view a system log.

Step 4   Configure the parameters in the SysLog Messages window, and then save your configuration.

The list of events appear in the SysLog Messages area.

Note   Refer to the Table 6-2 for the field definitions.

From the Command Log window, you can view the details of each configuration entry including information such as event, time the event occurred, name of the logged in user, the change that was performed on an object, the internet address of the requested system or requester, and more.

To view the Command Log window, follow these steps:

Step 2   Select Cisco DSL Manager > Physical > Chassis > View > Command Log.

Step 3   From the list box on the left side of the window, select the chassis for which you want to view the command history events.

Step 4   In the Maximum Table Entries field, type the number of events you want to view at one time.

Step 5   Select File > Save, or click the Save icon.

The list of events appear in the Command Log Details area.

After you configure or change the parameters, the system does not dynamically update the list of events in the Command Log Details area. Only the messages that have been generated since you configured the parameters appear in the Command Log Details area.

Perform backups on a regular basis to recover configuration information in the unlikely event of a hardware failure. For example, if an NI-2 card fails, you can install a new NI-2 card in the chassis, click the Restore button in the Configuration Backup/Restore window, and the system restores the configuration data.

It is important that you back up configuration data on a regular basis because all configuration changes made between the last backup and the time of the failure will be lost.

Note   The backup/restore feature is not intended for use as a configurable tool. The system uses the same file each time you back up the configuration data. Backup/Restore is configured on a per chassis basis. When you click the Backup button, all CDM configurations are copied onto the TFTP server. When you click the Restore button, the system initiates the action of restoring the running configuration to a Cisco DSLAM.

To open the Configuration/Backup Restore window, follow these steps:

Step 2   Select Cisco DSL Manager > Physical > Chassis > Configuration Backup/Restore.

Step 3   From the list on the left side of the window, select the chassis, or multiple cards, for which you want to back up or restore configuration data.

Step 4   Configure the parameters in the Configuration area.

Step 6   Type the date (mm/dd/yyyy) and time (24-hour format, for example, 4:00 p.m. is 16:00) you want the system to perform the backup.

Step 7   Click OK to save the new date and time.

Note   You must have configured SNMP information before you can download a new Cisco IOS software image. To verify that SNMP information is configured, go to the SNMP Management window (see the "Enabling SNMP Trap Generation" section).

To download a new Cisco IOS software image, follow these steps:

Step 2   Select Cisco DSL Manager > Physical > Chassis > IOS Image Download.

Step 3   From the list box on the left side of the window, select the chassis for which you want to perform a Cisco IOS download.

Step 4   Configure the Cisco IOS image download parameters.