Designing the network topology

The combination of IP and non-IP (point-to-point) networks that link cluster nodes and clients is called the cluster network topology. The PowerHA® SystemMirror® software supports a large number of IP and point-to-point devices on each node to provide flexibility in designing a network configuration.

When designing your network topology, ensure that clients have highly available network access to their applications. This requires that none of the following network interfaces are a single point of failure:

• The IP subsystem
• A single network
• A single NIC