Message Functions; Activate Service Messages - Avaya CS 1000 Maintenance Manual

Message functions

Service messages are used to monitor the following:
• D-channel establishment
• D-channel sanity polling
• B-channel or ISL channel status change
• Channel status audit
D-channel establishment
When the D-channel establishes, the B-channel status is supported by sending service
messages for each B-channel controlled by a D-channel. This allows the far end to synchronize
its channel states. These services messages are sent when the D-channel is brought up
automatically by the system or manually in LD 96.
D-channel sanity polling
If a D-channel has been idle for 30 seconds, a service message is sent to poll the sanity of the
link. The service message is sent regardless of whether the near end is configured as master
or slave.
B-channel or ISL channel status change
Whenever there is a status change for a B-channel or an ISL channel, the new status is
reported to the far end through a service message. Status change can occur through service
change or maintenance operations, such as the addition or deletion of a channel in LD 14, or
disabling of the associated loop, shelf, card or unit in LD 30, LD 32, LD 36, LD 41 or LD 60.
Channel status audit
LD 30 is enhanced to allow channel status audit to be initiated. The channels associated with
each D-channel are examined and their status is reported to the far end through service
messages.

Activate service messages

Activate the service messages in LD 96 on a D-channel basis. The commands are listed in
Table 59: D-channel messages
Table 59: D-channel messages
Command
ENL SERV N
DIS SERV N
ISDN Primary Rate Interface Maintenance
on page 125.
Description
Turns on the support of service and service acknowledge
messages for DCH link N.
Turns off the support of service and service acknowledge
messages for DCH link N.
Maintenance messages
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