diff --git a/sonic_platform_base/sonic_xcvr/api/public/cmis.py b/sonic_platform_base/sonic_xcvr/api/public/cmis.py
index 621b557..06cf842 100644
--- a/sonic_platform_base/sonic_xcvr/api/public/cmis.py
+++ b/sonic_platform_base/sonic_xcvr/api/public/cmis.py
@@ -2059,7 +2059,7 @@ def get_application_advertisement(self):
 
             key = "{}_{}".format(consts.HOST_ELECTRICAL_INTERFACE, app)
             val = dic.get(key)
-            if val in [None, 'Unknown', 'Undefined']:
+            if val in [None, 'End']:
                 continue
             buf['host_electrical_interface_id'] = val
 
@@ -2068,7 +2068,7 @@ def get_application_advertisement(self):
                 continue
             key = "{}_{}".format(prefix, app)
             val = dic.get(key)
-            if val in [None, 'Unknown']:
+            if val in [None]:
                 continue
             buf['module_media_interface_id'] = val
 
diff --git a/sonic_platform_base/sonic_xcvr/codes/public/sff8024.py b/sonic_platform_base/sonic_xcvr/codes/public/sff8024.py
index c6a7e6e..8a47fde 100644
--- a/sonic_platform_base/sonic_xcvr/codes/public/sff8024.py
+++ b/sonic_platform_base/sonic_xcvr/codes/public/sff8024.py
@@ -267,7 +267,8 @@ class Sff8024(XcvrCodes):
         80: '400GAUI-4-L C2M (Annex 120G)',
         81: '800G S C2M (placeholder)',
         82: '800G L C2M (placeholder)',
-        83: 'OTL4.2'
+        83: 'OTL4.2',
+       255: 'End'
     }
 
     # MMF media interface IDs
@@ -387,7 +388,12 @@ class Sff8024(XcvrCodes):
         84: 'FOIC2.4-DO (G.709.3/Y.1331.3)',
         85: '400GBASE-DR4-2 (placeholder)',
         86: '800GBASE-DR8 (placeholder)',
-        87: '800GBASE-DR8-2 (placeholder)'
+        87: '800GBASE-DR8-2 (placeholder)',
+        102: 'FLEXO-8e-DO-16QAM/FOIC8e.8-DO',
+        151: "100G-DR1-LPO",
+        152: "200G-DR2-LPO",
+        153: "400G-DR4-LPO",
+        154: "800G-DR8-LPO",
     }
 
     # Passive and Linear Active Copper Cable and Passive Loopback media interface codes
diff --git a/sonic_platform_base/sonic_xcvr/fields/xcvr_field.py b/sonic_platform_base/sonic_xcvr/fields/xcvr_field.py
index a9e0fd5..21d4780 100644
--- a/sonic_platform_base/sonic_xcvr/fields/xcvr_field.py
+++ b/sonic_platform_base/sonic_xcvr/fields/xcvr_field.py
@@ -238,7 +238,7 @@ def decode(self, raw_data, **decoded_deps):
         if mask is not None:
             code &= mask
             code >>= self.start_bitpos
-        return self.code_dict.get(code, "Unknown")
+        return self.code_dict.get(code, "Unknown: {}".format(code))
 
 class HexRegField(RegField):
     """