Public networks and the private network (cluster interconnect) must use separate adapters.
You must have at least one public network that is connected to all cluster nodes.
You can have as many additional public-network connections as your hardware configuration allows.
Sun Cluster software supports IPv4 and IPv6 addresses on the public network, both for failover and scalable data services. However, Sun Cluster software does not support IPv6 communications over the private interconnects.
The local-mac-address? variable must use the default value true for Ethernet adapters. Sun Cluster software does not support a local-mac-address? value of false for Ethernet adapters. This requirement is a change from Sun Cluster 3.0, which did require a local-mac-address? value of false.
During Sun Cluster installation, the scinstall utility automatically configures a single-adapter IP Network Multipathing group for each public-network adapter. To modify these backup groups after installation, follow the procedures in “Deploying Network Multipathing” in IP Network Multipathing Administration Guide (Solaris 8) or“Administering Network Multipathing (Task)” in System Administration Guide: IP Services (Solaris 9).
See IP Network Multipathing Groups for guidelines on planning public-network-adapter backup groups. For more information about public-network interfaces, see Sun Cluster Concepts Guide for Solaris OS.