Avaya Nortel Communication Server 1000 Manual page 484

484 Voice Gateway Media Card maintenance
Maintenance audit
A background audit watches for tasks that go into a suspended state. Under
normal operation, a task should not go into a suspended state. However, if it
occurs, the card processing is affected.
If the audit task finds a suspended task, it performs the following actions:
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This function provides an automatic way to return the card to service
and provides critical debug information. The information is output to the
EXCPLOG.n files (where n is a number from 0-3) that are located in the
/C:/LOG directory. The new information is placed in these files where it
cannot be overwritten by the usual information output to the SYSLOG file
when the card reboots.
The auditRebootSet command disables the card reboot if any task is
found in a suspended state.
The maintenance audit enhancement differentiates between tasks that are
critical and noncritical.
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If a critical task is found suspended, the stack and register information
is dumped and the card is then reset. If a task on the critical task list
disappears, it is treated as a suspended task. Therefore, a missing critical
task triggers a reboot and a missing noncritical task does not trigger a
reboot.
If a noncritical task is found suspended, the information is dumped but the
card is not reset. The card is reset when the Voice Gateway Media Card
clock reaches 2:00 a.m. (default reset time). The reset time is configured
from the CLI. This eliminates card resets that impact service for noncritical
tasks by delaying them to a non-service impacting time.
Additional CLI commands have been added enabling any task to be marked
as critical or noncritical, regardless of its default designation. This could be
used, for example, to mark a "misbehaving" task as noncritical to avoid a
card reset. This would enable the problem to be debugged.
Copyright © 2003–2008, Nortel Networks
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outputs a stack and register dump to the debug port
outputs a file on the /C: drive
resets the card
A critical task is any task that the IP Line application needs to function.
When a critical task is not functioning properly, it causes noticeable
degradation in the IP Line application.
A noncritical task is any other task that does not cause noticeable
degradation to the IP Line application.
Nortel Communication Server 1000
IP Line Fundamentals
NN43100-500 02.02 Standard
Release 5.5 4 February 2008