Gateway API Support Matrix

Nantian Gateway targets the Kubernetes Gateway API v1.5.1 specification. This page summarizes current support for every upstream feature, including experimental and extended features.

How to Read This Matrix

• Default Support — feature is advertised when enableExperimentalGateway=false.
• Experimental Runtime Support — feature is advertised when enableExperimentalGateway=true.
• Current Position — Nantian’s runtime-gated support position, derived from internal/gatewayapi/supported_features.go and conformance workflows.

Note

Core features (Gateway, HTTPRoute, GRPCRoute, Mesh, ReferenceGrant, BackendTLSPolicy) are fully supported and not repeated here.

Support Matrix

Gateway Extended Features

Feature	Channel	Default	Experimental	Position
GatewayPort8080	standard	Yes	Yes	Supported
GatewayStaticAddresses	standard	Yes	Yes	Supported
GatewayHTTPListenerIsolation	standard	Yes	Yes	Supported
GatewayHTTPSListenerDetectMisdirectedRequests	standard	Yes	Yes	Supported
GatewayInfrastructurePropagation	standard	Yes	Yes	Supported
GatewayAddressEmpty	standard	Yes	Yes	Supported
ListenerSet	standard	No	Yes	Experimental runtime only
GatewayBackendClientCertificate	standard	Yes	Yes	Supported
GatewayFrontendClientCertificateValidation	standard	No	No	Not supported
GatewayFrontendClientCertificateValidationInsecureFallback	standard	No	No	Not supported

HTTPRoute Extended Features

Feature	Channel	Default	Experimental	Position
HTTPRouteDestinationPortMatching	experimental	Yes	Yes	Supported
HTTPRouteBackendRequestHeaderModification	standard	Yes	Yes	Supported
HTTPRouteQueryParamMatching	standard	Yes	Yes	Supported
HTTPRouteMethodMatching	standard	Yes	Yes	Supported
HTTPRouteResponseHeaderModification	standard	Yes	Yes	Supported
HTTPRoutePortRedirect	standard	Yes	Yes	Supported
HTTPRouteSchemeRedirect	standard	Yes	Yes	Supported
HTTPRoutePathRedirect	standard	Yes	Yes	Supported
HTTPRouteHostRewrite	standard	Yes	Yes	Supported
HTTPRoutePathRewrite	standard	Yes	Yes	Supported
HTTPRouteRequestMirror	standard	Yes	Yes	Supported
HTTPRouteRequestMultipleMirrors	experimental	Yes	Yes	Supported
HTTPRouteRequestPercentageMirror	experimental	Yes	Yes	Supported
HTTPRouteRequestTimeout	standard	Yes	Yes	Supported
HTTPRouteBackendTimeout	standard	Yes	Yes	Supported
HTTPRouteParentRefPort	standard	Yes	Yes	Supported
HTTPRouteNamedRouteRule	standard	Yes	Yes	Supported
HTTPRouteCORS	experimental	Yes	Yes	Supported
HTTPRoute303RedirectStatusCode	experimental	Yes	Yes	Supported
HTTPRoute307RedirectStatusCode	experimental	Yes	Yes	Supported
HTTPRoute308RedirectStatusCode	experimental	Yes	Yes	Supported
HTTPRouteBackendProtocolH2C	experimental	Yes	Yes	Supported
HTTPRouteBackendProtocolWebSocket	experimental	Yes	Yes	Supported
HTTPRouteBackendProtocolGRPC	experimental	No	No	Not supported

GRPCRoute Extended Features

Feature	Channel	Default	Experimental	Position
GRPCRouteNamedRouteRule	standard	Yes	Yes	Supported

TLSRoute Extended Features

Feature	Channel	Default	Experimental	Position
TLSRouteModeTerminate	experimental	No	Yes	Experimental runtime only
TLSRouteModeMixed	experimental	No	Yes	Experimental runtime only

UDPRoute Extended Features

Feature	Channel	Default	Experimental	Position
UDPRoute	experimental	No	Yes	Experimental runtime only

Mesh Features

Feature	Channel	Default	Experimental	Position
Mesh	experimental	Yes	Yes	Supported
MeshClusterIPMatching	experimental	Yes	Yes	Supported
MeshConsumerRoute	experimental	Yes	Yes	Supported
MeshHTTPRouteBackendRequestHeaderModification	experimental	Yes	Yes	Supported
MeshHTTPRouteNamedRouteRule	experimental	Yes	Yes	Supported
MeshHTTPRouteQueryParamMatching	experimental	Yes	Yes	Supported
MeshHTTPRouteRedirectPath	experimental	Yes	Yes	Supported
MeshHTTPRouteRedirectPort	experimental	Yes	Yes	Supported
MeshHTTPRouteRewritePath	experimental	Yes	Yes	Supported
MeshHTTPRouteSchemeRedirect	experimental	Yes	Yes	Supported
MeshConsumerNamespaceMatching	experimental	No	No	Not supported

BackendLBPolicy Features

Feature	Channel	Default	Experimental	Position
BackendLBSessionPersistence	standard	Yes	Yes	Supported

BackendTLSPolicy Features

Feature	Channel	Default	Experimental	Position
BackendTLSPolicySANValidation	experimental	Yes	Yes	Supported

Nantian-Specific Declarations

In addition to the upstream Gateway API feature set, Nantian Gateway declares:

Feature	Description
TCPRoute	TCP routing support
BackendLBSessionPersistence	Session persistence for backend load balancing
UDPRoute	UDP routing support

Enabling Experimental Features

To enable experimental runtime features, set the Helm value:

gatewayAPI:
  enableExperimentalGateway: true

For conformance testing with experimental features:

CONFORMANCE_EXPERIMENTAL=true ALL_FEATURES=true make conformance

Source of Truth

• Supported feature declarations: gateway/internal/gatewayapi/supported_features.go
• All-features conformance: gateway/conformance/conformance_test.go
• CI workflow: gateway/.github/workflows/conformance.yml