>The rate of deployment changes.</li><li>The rate of configuration changes.</li><li>The number of proxies connecting to Istiod.</li></ul><p>however this part is inherently horizontally scalable.</p><p>When <a href=/v1.16/docs/reference/config/networking/sidecar/>namespace isolation</a> is enabled,
a single Istiod instance can support 1000 services, 2000 sidecars with 1 vCPU and 1.5 GB of memory.
You can increase the number of Istiod instances to reduce the amount of time it takes for the configuration
to re