The Access Gateway provides policy-driven traffic monitoring, capture, authorization, and management capabilities. These services are provided at the application layer, and are enforced for each Web service request using knowledge of the requester, target service, and invoked operation. The Access Gateway processes all incoming requests and messages. It is deployed on WebSphere® ESB.
If you use groups, you must deploy the Parlay X Address List Manager over XCAP Web service implementation. This service enables the Access Gateway to communicate with an XCAP server, for example IBM® XDMS, to resolve group members. The Group Resolution mediation primitive, part of the Access Gateway, uses the Parlay X Address List Management interface to resolve groups.
The Access Gateway is installed by the (TWSS) base installer on the deployment manager node. The First Steps script synchronizes the installation with other nodes, if any, in the cluster.