diff --git a/schemas/vlan_vxlan.yml b/schemas/vlan_vxlan.yml
index 6cddb4d..feef0c1 100644
--- a/schemas/vlan_vxlan.yml
+++ b/schemas/vlan_vxlan.yml
@@ -141,6 +141,7 @@ nodes:
         peer: InfraDevice
         cardinality: one
         kind: Parent
+        optional: false
       - name: source_interface
         peer: InfraInterfaceLoopback
         cardinality: one
@@ -170,6 +171,7 @@ nodes:
         peer: InfraVTEP
         cardinality: one
         kind: Parent
+        optional: false
       - name: vlan
         peer: InfraVLAN
         cardinality: one
@@ -208,3 +210,4 @@ nodes:
         peer: InfraDevice
         cardinality: one
         kind: Parent
+        optional: false