--- title: Remote Cluster test: n/a --- A remote cluster is a [cluster](/docs/reference/glossary/#cluster) that connects to a [control plane](/docs/reference/glossary/#control-plane) residing outside of the cluster. A remote cluster can connect to a control plane running in a [primary cluster](/docs/reference/glossary/#primary-cluster) or to an [external control plane](/docs/reference/glossary/#external-control-plane).