Installing Sametime Gateway Servers in a cluster

Install a cluster of IBM® Sametime® Gateway servers in a network deployment.

About this task

Sametime Gateway Server supports cluster members on multiple nodes across many nodes in a cell, with nodes either coexisting on the same computer, or running on separate systems. A network deployment is made up of a deployment manager, which manages the cell, SIP, and XMPP proxy servers, a primary node, and, if needed, one or more secondary nodes.

Note the following restrictions:
  • All of the cluster components (deployment manager, nodes, proxies) must be deployed in the same LAN.
  • Configure WebSphere® Application Server Network Deployment with a single subnet for network traffic. You can use one Network interface card (NIC) on a physical computer or logical partition (LPAR). You can also reference a single Domain name system (DNS) server in the network configuration for the physical computer or LPAR.
  • Deploying components over a WAN is not supported.
  • Placing a firewall between two components is not supported (even if the firewall is configured to allow the relevant traffic).
  • When deploying a load balancer in front of a cluster's WebSphere SIP proxy servers, the load balancer must be able to communicate with the proxy servers in Layer 2, using MAC forwarding. IP forwarding (Layer 3) is not supported.