2.2.3.1 Public Network Connections

Consider these points when planning your public network configuration:

• You must have at least one public network that is attached to all cluster nodes. You can have as many additional public network connections as your hardware configuration allows.

• In configurations providing HA data services, you must provide IP addresses and network interface names for each logical host on each public network. This can lead to many host names. Refer to "2.2.2 Establishing Names and Naming Conventions", for more information. You must add the logical host names to the /etc/hosts files on all cluster nodes.

• Sun Cluster includes a Public Network Management (PNM) component, which enables a public network interface to fail over to another interface within a designated backup group. Refer to the chapter on administering network interfaces in the Sun Cluster 2.2 System Administration Guide for more information about PNM.