Setting Synchronization - Avaya G350 Administration

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Setting synchronization

If the Avaya G350 Media Gateway contains an MM710 T1/E1 media module, it is advisable to define the
MM710 as the primary synchronization source for the G350. In so doing, clock synchronization signals
from the Central Office (CO) are used by the MM710 to synchronize all operations of the G350. If no
MM710 is present, it is not necessary to set synchronization.
Use the
set sync interface {primary|secondary} {mmID|[portID]}
stratum clock source (T1/E1 Media Module, ISDN-BRI), where:
•
mmID is the Media Module ID of an MM stratum clock source of the form vn, where n is the MM
slot number.
•
portID is the port number for an ISDN clock source candidate. The port ID consists of the slot
number of the media module and the number of the port. You can set more than one port. For
example: v2 1,3,5-8
NOTE:
The port ID parameter only applies if the source is a BRI module.
By setting the clock source to primary, normal failover will occur. The identity of the current
synchronization source is not stored in persistent storage. Persistent storage is used to preserve the
parameters set by this command.
NOTE:
Setting the source to secondary overrides normal failover, generates a trap, and asserts a
fault. Thus, it is not recommended to set the clock source to secondary except for testing
purposes.
To determine which reference source is the active source, use the
command. If you choose secondary, the secondary source becomes active, and the primary source goes
on standby. In addition, fallback to the primary source does not occur even when the primary source
becomes available.
If neither primary nor secondary sources are identified, the local clock becomes the active source.
The following example sets the MM710 media module located in slot 2 of the G350 chassis as the
primary clock synchronization source for the Avaya G350 Media Gateway.
set sync interface primary v2
set sync source primary
If the G350 includes a second MM710 media module, enter the following additional command:
set sync interface secondary v3
set sync source secondary
If, for any reason, the primary MM710 media module cannot function as the clock synchronization
source, the system uses the MM710 media module located in slot 3 of the G350 chassis as the clock
synchronization source. If neither MM710 media module can function as the clock synchronization
source, the system defaults to the local clock running on the S8300 Media Server.
Administration of the Avaya G350 Media Gateway
June 2004
Setting synchronization
command to define a potential
set sync source {primary|secondary}
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