Avaya 03-300430 ユーザーズマニュアル
Communication Manager Maintenance-Object Repair Procedures
2336 Maintenance Procedures for Avaya Communication Manager 3.0, Media Gateways and Servers
3. A particular Tone-Clock circuit pack can be made active by issuing the set tone-clock
location [override] command. If the Tone-Clock to be made active is less healthy
than the currently active one, no interchange will occur unless the override option is
specified; without it a message will inform the user that it is required.
Once a Tone-Clock circuit pack is made active by the set tone-clock location
command, it will stay active until either the set tone-clock location command is
entered again to make the other circuit pack active, or until a fault occurs in the active
Tone-Clock circuit pack, which causes the system to interchange Tone-Clocks.
Tone-Clock circuit pack, which causes the system to interchange Tone-Clocks.
S8700 | 8710
/
S8500
Firmware Instigated Tone-Clock Interchanges
Firmware-initiated Tone-Clock interchanges occur when the auto clock switching option is
enabled, and the TN2312 IPSI circuit pack firmware detects a loss of clock or clock errors. After
detecting a loss of clock/clock errors, and rather than waiting for system software to request a
switch, the IPSI firmware will automatically switch the clock (when auto clock switching is
enabled). The auto clock switching option is disabled during system restarts.
enabled, and the TN2312 IPSI circuit pack firmware detects a loss of clock or clock errors. After
detecting a loss of clock/clock errors, and rather than waiting for system software to request a
switch, the IPSI firmware will automatically switch the clock (when auto clock switching is
enabled). The auto clock switching option is disabled during system restarts.
Note:
Note:
The auto clock switching option is required by the IPSI circuit pack since the EAL
connection to the PKT-INT (one of the IPSI circuit packs many functions) is over
the server packet bus which must have a good clock for proper operation.
connection to the PKT-INT (one of the IPSI circuit packs many functions) is over
the server packet bus which must have a good clock for proper operation.
S8700 MC
Clock Synchronization
Note:
Note:
Stratum-3 clocking is not available for a port network supported by a TN2312
(IPSI) circuit pack, or a port network where the Tone-Clock function is supplied by
a TN2182.
(IPSI) circuit pack, or a port network where the Tone-Clock function is supplied by
a TN2182.
This section discusses synchronization with a Stratum-3 or -4 clocking device.