SearchVarnish High Availability
Varnish High Availability is a content replicator for Varnish Enterprise.
The latest version of Varnish High Availability, called VHA6, does direct API based cache to cache transfers without needing any VCL context.
VHA6 is available in the varnish-plus-ha package starting in version 6.0.3r6.
Please click here for the legacy version of VHA.