Broker 10.5 | webMethods Broker Documentation | Administering webMethods Broker | Managing Cluster Gateways | Overview | Cluster Gateway Connections, Cluster Gateways, Cluster Gateway Pairs, and Cluster Gateway Brokers
 
Cluster Gateway Connections, Cluster Gateways, Cluster Gateway Pairs, and Cluster Gateway Brokers
The term cluster gateway connection refers to the link from a local Broker (in the local cluster) to a remote Broker (in the remote cluster) that enables two clusters to exchange documents. A cluster gateway connection refers to an uni-directional link from one cluster to another. To create this link, two Brokers, one from each cluster, are designated to communicate with one another.
A cluster gateway consists of multiple cluster gateway connections that allow message flow from the local cluster to a remote cluster. To form a cluster gateway, you must create and configure a cluster gateway on each of these Brokers.
Note:
The Broker that hosts a cluster gateway is a regular member of its own cluster and can handle regular clients in addition to the cluster gateway.
A cluster gateway pair refers to a pair of cluster gateways that allow bi-directional message exchange between two clusters. A cluster gateway will not function properly until all the Brokers have at least one outgoing cluster gateway connection.
A cluster gateway Broker performs functions similar to those performed by a Remote Broker object in a cluster. In this capacity, the local cluster gateway Broker:
*Establishes and maintains a connection with its counterpart in the remote cluster
*Maintains the subscription list and forward queue for the remote cluster
*Retrieves documents for the local cluster from the remote cluster gateway
Unlike a Remote Broker object, a cluster gateway Broker requires an administrator to explicitly specify which document types it can "forward to" and "receive from" the remote cluster. The cluster gateway Broker enforces these permissions on the documents that pass through it.
Note:
You cannot create a gateway between a Broker cluster and a Broker territory.