Networks
As an independent, layered component of AIX®, HACMP™ is designed to work with any TCP/IP-based network. Nodes in an HACMP™ cluster use the network to allow clients to access the cluster nodes, enable cluster nodes to exchange heartbeat messages, and, in concurrent access environments, serialize access to data.
HACMP™ defines two types of communication networks, characterized by whether these networks use communication interfaces based on the TCP/IP subsystem (TCP/IP-based), or communication devices based on non-TCP/IP subsystems (device-based).