diff --git a/release/models/aft/openconfig-aft-common.yang b/release/models/aft/openconfig-aft-common.yang
index 4cd7bb63f..f44153418 100644
--- a/release/models/aft/openconfig-aft-common.yang
+++ b/release/models/aft/openconfig-aft-common.yang
@@ -421,19 +421,19 @@ submodule openconfig-aft-common {
     leaf ttl {
       type uint8;
       description
-        "This leaf reflects the configured TTL value that is used in the outer
-         header during packet encapsulation. When this leaf is not set, the TTL
-         value of the inner packet is copied over as the outer packet's TTL
-         value during encapsulation.";
+        "This leaf reflects the configured/default TTL value that is used in the
+         outer header during packet encapsulation. When this leaf is not set,
+         the TTL value of the inner packet is copied over as the outer packet's
+         TTL value during encapsulation.";
     }
 
     leaf tos {
       type uint8;
       description
-        "This leaf reflects the configured TOS value that is used in the outer
-         header during packet encapsulation. When this leaf is not set, the TOS
-         value of the inner packet is copied over as the outer packet's TOS
-         value during encapsulation.";
+        "This leaf reflects the configured/default TOS value that is used in the
+         outer header during packet encapsulation. When this leaf is not set,
+         the TOS value of the inner packet is copied over as the outer packet's
+         TOS value during encapsulation.";
     }
   }