Maintenance; Msdl States - Avaya Nortel Communication Server 1000 Reference

Maintenance

Routine maintenance consists of enabling and disabling MSDL cards and downloading new
versions of peripheral software. These activities are performed by an authorized person such
as a system administrator.
Troubleshooting the MSDL consists of determining problem types, isolating problem sources,
and solving the problem. A craftsperson normally performs these activities.
CS 1000E, CS 1000M, and Meridian 1 systems have self-diagnostic indicators as well as
software and hardware tools. These diagnostic facilities simplify MSDL troubleshooting and
reduce mean-time-to-repair (MTTR). For complete information concerning system
maintenance, refer to Communication Server 1000M and Meridian 1 Large System
Maintenance (NN43021-700).
For complete information regarding software maintenance programs, refer to Software Input/
Output Reference — Administration (NN43001-611).

MSDL states

MSDL states are controlled manually by maintenance programs or automatically by the
system. Figure 93: MSDL states
them. These are the three states the MSDL may be in:
• Manually disabled
• Enabled
• System disabled
The following sections describe the relationships between these states.
Manually disabled
In this state, the MSDL is not active. The system does not attempt to communicate or attempt
any automatic maintenance on the MSDL.
Circuit Card Reference
on page 336 shows MSDL states and the transitions among
Maintenance
July 2011 335