.. _client_features: Well Known Client Features ========================== Authoritative list of features that an xDS client may support. An xDS client supplies the list of features it supports in the :ref:`client_features ` field. Client features use reverse DNS naming scheme, for example `com.acme.feature`. Currently Defined Client Features --------------------------------- - **envoy.config.require-any-fields-contain-struct**: This feature indicates that xDS client requires that the configuration entries of type *google.protobuf.Any* contain messages of type *udpa.type.v1.TypedStruct* only. - **envoy.lb.does_not_support_overprovisioning**: This feature indicates that the client does not support overprovisioning for priority failover and locality weighting as configured by the :ref:`overprovisioning_factor` field. If graceful failover functionality is required, it must be supplied by the management server.