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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.
WebSphere® SIP proxy server ports
Open ports on each IBM® WebSphere® SIP proxy server in the cluster so it can communicate with end users and with cluster members.

WebSphere SIP proxy server ports

Open ports on each IBM® WebSphere® SIP proxy server in the cluster so it can communicate with end users and with cluster members.

Open the Ports page for the application server by completing the following steps:

In the deployment manager's IBM WebSphere Integrated Solutions Console, click Servers > Server Types > WebSphere proxy servers.
In the table of proxy servers, click the link for the proxy server you are modifying.
On the configuration page, look under "Additional Properties" and click Ports.
Set the ports as described in Table 1 and Table 2.

Open the ports in Table 1 to all nodes as well as the deployment manager.

Table 1. Ports to open between to all nodes and the deployment managerThis table lists the ports to open and specifies the value typically used for each port.
Port name	Port value
BOOTSTRAP_ADDRESS	9811
SOAP_CONNECTOR_ADDRESS	8882
DCS_UNICAST_ADDRESS	9357
IPC_CONNECTOR_ADDRESS	9635
OVERLAY_UDP_LISTENER_ADDRESS	11011
OVERLAY_TCP_LISTENER_ADDRESS	11012

Open the ports in Table 2 to end users as appropriate for the service that this proxy server is providing.

Table 2. Ports to open to end users as appropriateThis table lists the ports to open and specifies the value typically used for each port.
Port name	Port value
PROXY_HTTP_ADDRESS	80
PROXY_HTTPS_ADDRESS	443
PROXY_SIP_ADDRESS	5064
PROXY_SIPS_ADDRESS	5065