This documentation is for the Envoy v3 API.
As of Envoy v1.18 the v2 API has been removed and is no longer supported.
If you are upgrading from v2 API config you may wish to view the v2 API documentation:
This extension may be referenced by the qualified name
This extension has an unknown security posture and should only be used in deployments where both the downstream and upstream are trusted.
This extension extends and can be used with the following extension category:
Echo configuration overview.