diff --git a/pkg/apis/discovery/validation/validation.go b/pkg/apis/discovery/validation/validation.go
index 8499e7a696a..9fb7acfa2aa 100644
--- a/pkg/apis/discovery/validation/validation.go
+++ b/pkg/apis/discovery/validation/validation.go
@@ -40,7 +40,7 @@ var (
 	)
 	maxTopologyLabels = 16
 	maxAddresses      = 100
-	maxPorts          = 100
+	maxPorts          = 20000
 	maxEndpoints      = 1000
 )