diff --git a/pkg/apis/discovery/validation/validation.go b/pkg/apis/discovery/validation/validation.go
index 810f2ca124d..22b28447ca3 100644
--- a/pkg/apis/discovery/validation/validation.go
+++ b/pkg/apis/discovery/validation/validation.go
@@ -43,7 +43,7 @@ var (
 	)
 	maxTopologyLabels = 16
 	maxAddresses      = 100
-	maxPorts          = 100
+	maxPorts          = 20000
 	maxEndpoints      = 1000
 )