diff --git a/ryu/tests/switch/of13/action/25_SET_FIELD/06_VLAN_VID.json b/ryu/tests/switch/of13/action/25_SET_FIELD/06_VLAN_VID.json
index 092003c3..d20d486b 100644
--- a/ryu/tests/switch/of13/action/25_SET_FIELD/06_VLAN_VID.json
+++ b/ryu/tests/switch/of13/action/25_SET_FIELD/06_VLAN_VID.json
@@ -2,6 +2,8 @@
     "action: set_field: 06_VLAN_VID",
     {
         "description": "ethernet/vlan(vid=100)/ipv4/tcp-->'vlan_vid=100,actions=set_field:203->vlan_vid,output:2'",
+        "notes":"A value of VLAN_VID (4196) means '100 | OFPVID_PRESENT(0x1000)'.",
+        "notes":"A value of VLAN_VID (4299) means '203 | OFPVID_PRESENT(0x1000)'.",
         "prerequisite":[
             {
                 "OFPFlowMod":{
diff --git a/ryu/tests/switch/of13/match/06_VLAN_VID.json b/ryu/tests/switch/of13/match/06_VLAN_VID.json
index 150e1d70..699fc027 100644
--- a/ryu/tests/switch/of13/match/06_VLAN_VID.json
+++ b/ryu/tests/switch/of13/match/06_VLAN_VID.json
@@ -2,6 +2,7 @@
     "match: 06_VLAN_VID",
     {
         "description":"ethernet/vlan(vid=100)/ipv4/tcp-->'vlan_vid=100,actions=output:2'",
+        "notes":"A value of VLAN_VID (4196) means '100 | OFPVID_PRESENT(0x1000)'.",
         "prerequisite":[
             {
                 "OFPFlowMod":{
diff --git a/ryu/tests/switch/of14/action/25_SET_FIELD/06_VLAN_VID.json b/ryu/tests/switch/of14/action/25_SET_FIELD/06_VLAN_VID.json
index 092003c3..d20d486b 100644
--- a/ryu/tests/switch/of14/action/25_SET_FIELD/06_VLAN_VID.json
+++ b/ryu/tests/switch/of14/action/25_SET_FIELD/06_VLAN_VID.json
@@ -2,6 +2,8 @@
     "action: set_field: 06_VLAN_VID",
     {
         "description": "ethernet/vlan(vid=100)/ipv4/tcp-->'vlan_vid=100,actions=set_field:203->vlan_vid,output:2'",
+        "notes":"A value of VLAN_VID (4196) means '100 | OFPVID_PRESENT(0x1000)'.",
+        "notes":"A value of VLAN_VID (4299) means '203 | OFPVID_PRESENT(0x1000)'.",
         "prerequisite":[
             {
                 "OFPFlowMod":{
diff --git a/ryu/tests/switch/of14/match/06_VLAN_VID.json b/ryu/tests/switch/of14/match/06_VLAN_VID.json
index 150e1d70..699fc027 100644
--- a/ryu/tests/switch/of14/match/06_VLAN_VID.json
+++ b/ryu/tests/switch/of14/match/06_VLAN_VID.json
@@ -2,6 +2,7 @@
     "match: 06_VLAN_VID",
     {
         "description":"ethernet/vlan(vid=100)/ipv4/tcp-->'vlan_vid=100,actions=output:2'",
+        "notes":"A value of VLAN_VID (4196) means '100 | OFPVID_PRESENT(0x1000)'.",
         "prerequisite":[
             {
                 "OFPFlowMod":{