---
title: Primary Cluster
test: n/a
---

A primary cluster is a [cluster](/docs/reference/glossary/#cluster) with a
[control plane](/docs/reference/glossary/#control-plane). A single
[mesh](/docs/reference/glossary/#service-mesh) can have more than
one primary cluster for HA or to reduce latency. Primary clusters can act as the
control plane for [remote clusters](/docs/reference/glossary/#remote-cluster).