Lucent Technologies 7820-0802-003 manual Viewing controller up time, Clearing Nvram

Configuring Shelf-Controller Redundancy (APX 8000)

Obtaining status information about redundant shelf controllers

the default security level is reactivated. In addition, a system reset can cause a WAN line to temporarily be shut down due to momentary loss of signaling or framing information. After a reset, the unit runs power-on self-tests (POST).

The reset -rcommand resets the secondary controller or both controllers. The reset -fcommand resets the controller where the command is invoked. When the primary controller is reset, the secondary controller automatically takes over control and becomes primary.

Following is an example of what you enter to reset both controllers:

admin> reset -r b

Clearing NVRAM

The nvram command clears NVRAM and resets one or both APX 8000 redundant shelf controllers.

The nvram -rcommand clears NVRAM and resets the secondary controller or both controllers. The -f, -t, -u, and -ccommand options apply to the controller where the command is invoked. When the nvram command is performed on the primary controller and NVRAM is cleared and the controller reset, the secondary controller automatically takes over control and becomes primary.

Enter the following command to clear NVRAM and reset the secondary shelf controller:

admin> nvram-r s

Enter the following command to clear NVRAM and reboot both shelf controllers:

admin> nvram-r b

Obtaining status information about redundant shelf controllers

You can use the following methods to obtain information about the redundant shelf controllers:

•The command-line interface uptime command indicates the length of time the controllers have been operational.

•The command-line interface show command provides status information about the redundant shelf controllers.

•The Trap profile parameter Secondary-Controller-State-Change-Enabled allows a trap to

be sent to the NavisAccess™ manager whenever the secondary controller goes in or out of service.

Following are descriptions of these methods.

Viewing controller up time

The uptime command reports the length of time the primary controller has been operational. It also indicates the time elapsed since the secondary controller started communications with the primary. If a controller reboots or if communication between the two controllers is

APX 8000/MAX TNT/DSLTNT Physical Interface Configuration Guide 2-9