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Planning
Planning is critical to a successful deployment. Many deployment problems, growth problems, and capacity problems occur because not enough time is taken to carefully plan a deployment. Plan your IBM® Sametime® installation by determining features needed, reviewing system requirements, determining capacity requirements, and the servers and computers needed for your deployment.
System and infrastructure requirements
Sametime® system and infrastructure requirements include network planning, policy planning, password and parameter planning and planning for single sign-on.
Ports
IBM® Sametime® uses a number of ports. There are ports for connecting server to servers, clients to servers, and WebSphere Application Server ports to configure. The topics in this section list the default ports and their uses, and ports to open in firewalls. A range of ports means that the application can select any port in that range if one or more of those ports are already in use by other applications.
Ports to open in firewalls for WebSphere® clusters
For each IBM® WebSphere® Network Deployment cluster in your deployment, you must open ports in the firewalls between members of the cluster to enable communications.
Node agent ports
On every node in the IBM® WebSphere® cluster, open the following ports for the node agent.

Node agent ports

On every node in the IBM® WebSphere® cluster, open the following ports for the node agent.

Open the Ports page for the node agent by completing the following steps:

In the deployment manager's IBM WebSphere Integrated Solutions Console, click System administration > > Node agents.
In the Node agents table, click the nodeagent link next to the name of the node you are modifying.
On the configuration page, look under "Additional Properties" and click Ports.
Set the ports as described in Table 1.

Table 1. Ports to open for each node agent in the clusterThis table lists the ports to open and specifies the value typically used for each port.
Port name	Port value
BOOTSTRAP_ADDRESS	2809
DCS_UNICAST_ADDRESS	9354
NODE_DISCOVERY_ADDRESS	7272
SOAP_CONNECTOR_ADDRESS	8878
IPC_CONNECTOR_ADDRESS	9629
XDAGENT_PORT	7062
OVERLAY_TCP_LISTENER_ADDRESS	11005
OVERLAY_UDP_LISTENER_ADDRESS	11006