diff --git a/release/models/optical-transport/openconfig-transport-types.yang b/release/models/optical-transport/openconfig-transport-types.yang
index 44052f7c69..6f5fb1b924 100644
--- a/release/models/optical-transport/openconfig-transport-types.yang
+++ b/release/models/optical-transport/openconfig-transport-types.yang
@@ -1309,6 +1309,18 @@ module openconfig-transport-types {
     description "Ethernet compliance code: 800GBASE_ZR";
   }
 
+  identity ETH_800GBASE_DR8 {
+    base ETHERNET_PMD_TYPE;
+    description "Ethernet compliance code: 800GBASE_DR8";
+    reference "IEEE 802.3df";
+  }
+
+  identity ETH_800GBASE_2XFR4 {
+    base ETHERNET_PMD_TYPE;
+    description "Ethernet compliance code: 800GBASE_2XFR4";
+    reference "IEEE 802.3cu";
+  }
+
   identity ETH_UNDEFINED {
     base ETHERNET_PMD_TYPE;
     description "Ethernet compliance code: undefined";