Sc Redundancy; Clock Synchronization In Avaya G860 Media Gateway - Avaya G860 Installing And Operating

Avaya G860 Media Gateway
displayed in blue-gray.
operation is displayed in red.
The SC board audits and aligns all elements in the system to interconnect via the
designated Active Ethernet Switch board. Whenever a Media Gateway board or SC
board makes a switchover to the secondary or redundant SC board (in which the
Standby SC takes over the Active mode), the now Active SC board reassesses the
situation and re-aligns all of the boards either by switching to the secondary or
redundant Ethernet Switch board (in which the Standby ES takes over the Active
mode), or by issuing a Media Gateway board switchover.
If for any reason, Ethernet Switch switchover occurs, i.e., the initially Active Ethernet
Switch in slot 3 becomes Redundant (Standby) and initially Standby Ethernet Switch
in slot 4 becomes Active, it is incumbent on the user to return the (now Redundant or
Standby) Ethernet Switch in slot 3 to function as the Active Ethernet Switch board and
similarly to return to (now Active Ethernet Switch in Slot 4 to function as the Standby
Ethernet board.
In the EMS, in addition to the status display of the Ethernet Switch boards, you are
notified by the "operational info" alarm trap issued from the Active SC announcing the
message, "Network port 0 failed, start using network port 1".
In addition, the Ethernet Switch board is displayed as yellow indicating the appropriate
"suspect" severity.
To switch the boards to their default positions via the EMS, right-click on the now
Redundant (but initially Active) Ethernet Switch board and from the popup menu,
select the Align all Boards To Me option.
To clear an Ethernet Switch board's yellow severity status,right-click on the now
Redundant (but initially Active) Ethernet Switch board and from the popup menu, by
selecting the board's Clear Severity option.
12.9.3

SC Redundancy

The two SC boards operate as an Active/Standby pair. The background color of the
active board is dark and the Redundant is blue. To switchover between the two SCs,
right-click on the Active SC board and from the popup menu, select the Switch Over
option.
12.10 Clock Synchronization in Avaya G860 Media
Gateway
The Avaya G860 Media Gateway provides the following clock synchronization
operating modes:
For TPM system confurations:
•
'TP6310Mode' – for both the STM-1/OC-3 (future) and T3 versions.
The clock parameters are configured at the following levels:
The Gateway level – in the Clock Parameters provisioning screen of the EMS
The Trunk level –for 'TP6310mode' if the TPM system configuration withT3 is used.
118 Installation & Operation Manual
An Ethernet Switch board which is disabled by a lock