Product Description
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Network Interface
The following sections describe the WebLogic Network Gatekeeper network interface:
- Overview
- Network routing
- Network triggered events
- Core network plug-ins and supported protocols
- Plug-ins for extended protocol support
Overview
The WebLogic Network Gatekeeper network interface consists of a network routing function and a set of network plug-ins. The routing function routes service requests to the correct service node or OSA gateway, depending on the requests address and/or address format. The plug-ins transform the service request to fit the protocol used by the specified network element.
Network routing
The network routing function is used for routing network requests from the service capabilities modules to the appropriate network plug-ins. Based on the request's address plan, actual destination address and the network plug-ins' load levels, it provides the service capability modules with an appropriate network plug-in.
First, the plug-ins that support the address plan, for example E.164, are identified. Then, the routing function matches the address provided in the request with the address patterns supported by the plug-in. If more than one plug-in with normal load level matches the selection criterion, the routing function selects a plug-in instance according to a round robin schema.
The network routing function can take the underlying nodes' load and capacity into account when selecting an appropriate plug-in. For more information, see Plug-in manager policy execution.
Network triggered events
For a network triggered event, the plug-in is provided with a service capability module instances reference according to a round robin schema. The plug-ins transform the protocol specific requests to fit the service capability modules' protocol independant plug-in interfaces.
The WebLogic Network Gatekeeper takes care of network initiated events that no application has registered for. For example, in the call control case the following options are available:
In the messaging case the following options are available:
Core network plug-ins and supported protocols
A list of supported protocols for each service capability can be found in Technical Specification.
Plug-ins for extended protocol support
The concept with network plug-ins makes it easy extend the system to support new nodes/protocols and upgraded protocol versions. For more information, See Service Extensibility.
