AudioCodes Mediant 8000 - M2 UA (SG Side) Operational Status; Online Provisioning; Redundant Configuration

Installation & Operation Manual 482 Document # LTRT-92224
Mediant 8000
Parameter Name Type
Provisioning
Type
Description
Select SS7 Node
ID (M3UA)
Integer
0-4
Online Relevant for the MTP3/M3UA application
only.
Defines the ID of the SS7 Node with which
this UAL Interface is associated.
38.6.3.1 M2UA (SG Side) Operational Status
The Operational status of the M2UA (SG side) application may be determined by
inspecting the Operational Status of the following entities:

Trunk – indicates status of the MTP1 link layer

SS7 Data Link – indicates status of the MTP2 link layer
38.6.3.2 Online Provisioning
The configuration of the M2UA (SG side) application may be modified online.
See 'Configuring the M2UA (SG Side) Application' on page 476 for the full list of
entities that must be configured and specific parameters' description and provisioning
policies.
LOCK/UNLOCK operations may be performed on both M2UA SS7 DataLinks and
UAL Interfaces. The Administrative state of both entities is always synchronized.
Some of the SS7 Data Link parameters are of the Offline_create provisioning type.
To modify them, either lock the Media Gateway board or delete the SS7 Data Link
and define a new one.
The M2UA entities in the UALInterface and SS7DataLink tables are linked one to
another. When you delete a UAL Interface entity, the entity in the SS7DataLink table
is deleted as well and vice-versa.
38.6.3.3 Redundant Configuration
The M2UA (SG side) application is partially supported by the Media Gateway board
redundancy mechanism.
To achieve redundancy of the M2UA (SG side) application, distribute signaling links of
each routeset across at least 2 different Media Gateway boards and configure the
latter for Hot redundancy. If the Media Gateway board fails, the redundant board will
become active and SCTP associations will be dropped. Consequently, the M2UA links
will go out of service.
It is SoftSwitch's responsibility to identify this failover, re-establish SCTP associations,
re-activate ASPs and re-establish the M2UA interfaces. When all of the above events
occur, M2UA signaling links will return to service.
Nevertheless active calls should not be affected by the above-mentioned scenario,
because the SS7 linkset will remain in service, since it is also comprised of the other
links (on other boards) that remain in service.