Avaya CMC1, Процедуры обслуживания

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Server initialization, recovery, and resets
Link Recovery
Maintenance Procedures 135
December 2003
Gateway alarms
The Media Gateway events, their associated alarm levels, and SNMP status are listed in Table 49, Media
Gateway events and alarms, on page 135.
NOTE:
Avaya Communication Manager does not raise an alarm until the Link Loss Delay timer
expires. If the link to the original gateway is restored before this timer expires, then no
alarm is raised.
If the Link Loss Delay Timer expires but the gateway successfully connects with an LSP,
Avaya Communication Manager generates a warning alarm anyway, even though the
H.248 link is up.
Link recovery administration
Link Recovery requires both Avaya Communication Manager and Media Gateway administration. Use
these links to go to the appropriate section:
• Administering the server timer on page 135
• Administering the Media Gateway on page 136
• Administering the gateway timers and Transition Point on page 136
• Administering the MGC list on page 137
Administering the server timer
The Link Loss Delay Timer determines how long Communication Manager retains the gateway’s call
state information before it instructs the gateway to reset, which drops all calls in progress.
To administer the Link Loss Delay Timer:
1 At the SAT type change system-parameters ip-options and press
Enter
to display the system
parameters ip-options form ( Figure 18, System-parameters ip-options form, on page 136).
Table 49: Media Gateway events and alarms
Event Alarm level Log SNMP
Loss of link Major event trap
Link restored Major event trap clear
Registration successful Informational event trap
Registration failed Major event trap
No controller provisioned Major event trap
Controller provisioned Major event trap clear
Connection to LSP Major event trap
Connection fallback to primary Major event trap clear