diff --git a/envoy/api/v2/eds.proto b/envoy/api/v2/eds.proto
index f2ad57d0..9d2e288d 100644
--- a/envoy/api/v2/eds.proto
+++ b/envoy/api/v2/eds.proto
@@ -126,6 +126,7 @@ message ClusterLoadAssignment {
   repeated endpoint.LocalityLbEndpoints endpoints = 2;
 
   // Map of named endpoints that can be referenced in LocalityLbEndpoints.
+  // [#not-implemented-hide:]
   map<string, endpoint.Endpoint> named_endpoints = 5;
 
   // Load balancing policy settings.
diff --git a/envoy/api/v2/endpoint/endpoint.proto b/envoy/api/v2/endpoint/endpoint.proto
index 2ef2597b..58d6ce7c 100644
--- a/envoy/api/v2/endpoint/endpoint.proto
+++ b/envoy/api/v2/endpoint/endpoint.proto
@@ -57,6 +57,7 @@ message LbEndpoint {
   oneof host_identifier {
     Endpoint endpoint = 1;
 
+    // [#not-implemented-hide:]
     string endpoint_name = 5;
   }
 
diff --git a/envoy/api/v3alpha/eds.proto b/envoy/api/v3alpha/eds.proto
index b831d4bb..a09f54ed 100644
--- a/envoy/api/v3alpha/eds.proto
+++ b/envoy/api/v3alpha/eds.proto
@@ -126,6 +126,7 @@ message ClusterLoadAssignment {
   repeated endpoint.LocalityLbEndpoints endpoints = 2;
 
   // Map of named endpoints that can be referenced in LocalityLbEndpoints.
+  // [#not-implemented-hide:]
   map<string, endpoint.Endpoint> named_endpoints = 5;
 
   // Load balancing policy settings.
diff --git a/envoy/api/v3alpha/endpoint/endpoint.proto b/envoy/api/v3alpha/endpoint/endpoint.proto
index 1a6bc3a4..68fcac7b 100644
--- a/envoy/api/v3alpha/endpoint/endpoint.proto
+++ b/envoy/api/v3alpha/endpoint/endpoint.proto
@@ -57,6 +57,7 @@ message LbEndpoint {
   oneof host_identifier {
     Endpoint endpoint = 1;
 
+    // [#not-implemented-hide:]
     string endpoint_name = 5;
   }