An IEN Corridor Server coordinates communications between sites within the Corridor. Each Corridor Server can support up to nine site connections.
The server also hosts a central database to maintain static system configuration data and the dynamic data archives.
Regional Components
Regional IEN components (not depicted in the System Architecture graphic above) are responsible for coordinating communications between the IEN corridors
and coordinating communications between the IEN and external agencies.
The project to develop the regional components is expected to start in summer 2006.
CORBA
CORBA, or the Common Object Request Broker Architecture, is used to transport dynamic real-time data and static data throughout the IEN.
CORBA is required to support the large amount of real-time data generated by the system every second with the relatively low bandwidth of the IEN’s wide-area network.
Database Services
All static configuration data for the IEN is maintained in a relational database on each Corridor Server. This configuration data consists of the following:
Security attributes for users and resources.
The set of TCS objects known to the system.
Alarm notification configuration.
Locations and attributes of network resources.
Scenario response plans.
In addition to the static configuration data, the Corridor Server relational database system will store IEN system event logs and archived real-time data.
