176 Maintenance

1000) or from the IPE MAP Level using the Tst command (CS 2100/Meridian SL-100).

Sanity monitoring

Sanity monitoring is a background routine that checks the operation of system resources, such as CPU activity and memory allocation. This background routine tries to restore normal operation if the system performance has degraded to an unacceptable level. If all attempts to restore normal operation fail, this routine restarts the system to restore operation. If the soft reset is not effective, the system initiates a full, board-level reset. If the full reset is not successful, the maintenance LED remains on.

Diagnostic commands

Meridian 1/CS 1000 overlay commands

Each card performs diagnostic tests as part of the daily routines. Diagnostic tests can also be activated from a maintenance TTY.

The boot time of the ICB from reset, or power up, to when the card is ready and from an ENLC to when the ports are idle is approximately two minutes.

All relevant system maintenance commands for an extended digital line card apply to the ICB and are handled transparently to the system. Use LD32 to enable and disable an ACD M2616 telephone.

Table 41 lists some of the commands used to control the ICB status and functions.

Table 41

Commands to enable/disable ICB channels

Command

DISC/ENLC

DISU/ENLU

LOOP

Operation performed

LD 32

Disable/Enable specified card.

Disable/Enable specified channel.

Performs a network memory test, continuity test, and signaling test on the specified loop.

STAT

Get status of specified card/channel.

LD 30

UNTT

Performs self-test on the ICB.

553-3001-358/555-4001-135 Standard 02.00 July 2006

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Nortel Networks 553-3001-358 manual Sanity monitoring, Diagnostic commands Meridian 1/CS 1000 overlay commands, Command