Glossary

The glossary below contains many of the terms you will find in common use throughout the Symantec Security Response website. Please refer to this list to find definitions of terms and answers to other Internet security-related questions.

heartbeat protocol

The heartbeat protocol is a continuous exchange of messages to ensure that the nodes in an RDS will detect any network outage or a node crash. The protocol allows the nodes to reestablish a connection later.

The heartbeat protocol is a continuous exchange of messages to ensure that the nodes in an RDS will detect any network outage or a node crash. The protocol allows the nodes to reestablish a connection later.

A method to ensure that the communication network between the Primary and the Secondary node is always active. The Primary node periodically sends a heartbeat signal to the Secondary node. If the Secondary misses a fixed number of heartbeat signals, it detects a failure and begins the heartbeat protocol. The same is also done by the Secondary node.