diff --git a/fboss/agent/hw/sai/api/PortApi.h b/fboss/agent/hw/sai/api/PortApi.h
index aea44ff5f6a5e..4e66e7de6a896 100644
--- a/fboss/agent/hw/sai/api/PortApi.h
+++ b/fboss/agent/hw/sai/api/PortApi.h
@@ -416,7 +416,7 @@ struct SaiPortTraits {
       std::optional<sai_attr_id_t> operator()();
     };
     using ReachabilityGroup =
-        SaiExtensionAttribute<bool, AttributeReachabilityGroup>;
+        SaiExtensionAttribute<sai_uint32_t, AttributeReachabilityGroup>;
   };
   using AdapterKey = PortSaiId;
 
@@ -510,20 +510,18 @@ struct SaiPortTraits {
 #endif
       std::optional<Attributes::LinkTrainingEnable>,
       std::optional<Attributes::FdrEnable>,
-      std::optional<Attributes::RxLaneSquelchEnable>
+      std::optional<Attributes::RxLaneSquelchEnable>,
 #if SAI_API_VERSION >= SAI_VERSION(1, 10, 2)
-      ,
       std::optional<Attributes::PfcTcDldInterval>,
-      std::optional<Attributes::PfcTcDlrInterval>
+      std::optional<Attributes::PfcTcDlrInterval>,
 #endif
 #if SAI_API_VERSION >= SAI_VERSION(1, 14, 0)
-      ,
       std::optional<Attributes::ArsEnable>,
       std::optional<Attributes::ArsPortLoadScalingFactor>,
       std::optional<Attributes::ArsPortLoadPastWeight>,
-      std::optional<Attributes::ArsPortLoadFutureWeight>
+      std::optional<Attributes::ArsPortLoadFutureWeight>,
 #endif
-      >;
+      std::optional<Attributes::ReachabilityGroup>>;
   static constexpr std::array<sai_stat_id_t, 16> CounterIdsToRead = {
       SAI_PORT_STAT_IF_IN_OCTETS,
       SAI_PORT_STAT_IF_IN_UCAST_PKTS,
diff --git a/fboss/agent/hw/sai/api/tests/PortApiTest.cpp b/fboss/agent/hw/sai/api/tests/PortApiTest.cpp
index dbcac4b5c89e2..79435c38ce5f5 100644
--- a/fboss/agent/hw/sai/api/tests/PortApiTest.cpp
+++ b/fboss/agent/hw/sai/api/tests/PortApiTest.cpp
@@ -77,6 +77,7 @@ class PortApiTest : public ::testing::Test {
         std::nullopt, // ARS port load past weight
         std::nullopt, // ARS port load future weight
 #endif
+        std::nullopt, // Reachability Group
     };
     return portApi->create<SaiPortTraits>(a, 0);
   }
diff --git a/fboss/agent/hw/sai/store/tests/PortStoreTest.cpp b/fboss/agent/hw/sai/store/tests/PortStoreTest.cpp
index 83feab4578fc5..f80cdd9e062b6 100644
--- a/fboss/agent/hw/sai/store/tests/PortStoreTest.cpp
+++ b/fboss/agent/hw/sai/store/tests/PortStoreTest.cpp
@@ -71,6 +71,7 @@ class PortStoreTest : public SaiStoreTest {
         std::nullopt, // ARS port load past weight
         std::nullopt, // ARS port load future weight
 #endif
+        std::nullopt, // Reachability Group
     };
   }
 
diff --git a/fboss/agent/hw/sai/switch/npu/SaiPortManager.cpp b/fboss/agent/hw/sai/switch/npu/SaiPortManager.cpp
index df3a4f30b74fc..873bdc7301ab6 100644
--- a/fboss/agent/hw/sai/switch/npu/SaiPortManager.cpp
+++ b/fboss/agent/hw/sai/switch/npu/SaiPortManager.cpp
@@ -628,6 +628,15 @@ SaiPortTraits::CreateAttributes SaiPortManager::attributesFromSwPort(
   }
 #endif
 
+  std::optional<SaiPortTraits::Attributes::ReachabilityGroup>
+      reachabilityGroup{};
+#if defined(BRCM_SAI_SDK_DNX_GTE_12_0)
+  if (auto reachabilityGroupId = swPort->getReachabilityGroupId()) {
+    reachabilityGroup = SaiPortTraits::Attributes::ReachabilityGroup{
+        reachabilityGroupId.value()};
+  }
+#endif
+
   if (basicAttributeOnly) {
     return SaiPortTraits::CreateAttributes{
 #if defined(BRCM_SAI_SDK_DNX)
@@ -690,6 +699,7 @@ SaiPortTraits::CreateAttributes SaiPortManager::attributesFromSwPort(
         std::nullopt, // ARS port load past weight
         std::nullopt, // ARS port load future weight
 #endif
+        std::nullopt, // Reachability Group
     };
   }
   return SaiPortTraits::CreateAttributes{
@@ -757,6 +767,7 @@ SaiPortTraits::CreateAttributes SaiPortManager::attributesFromSwPort(
       arsPortLoadPastWeight, // ARS port load past weight
       arsPortLoadFutureWeight, // ARS port load future weight
 #endif
+      reachabilityGroup,
   };
 }
 
diff --git a/fboss/agent/hw/sai/switch/phy/SaiPortManager.cpp b/fboss/agent/hw/sai/switch/phy/SaiPortManager.cpp
index 20d9a2f096808..c4b8e7751b327 100644
--- a/fboss/agent/hw/sai/switch/phy/SaiPortManager.cpp
+++ b/fboss/agent/hw/sai/switch/phy/SaiPortManager.cpp
@@ -285,6 +285,7 @@ SaiPortTraits::CreateAttributes SaiPortManager::attributesFromSwPort(
       std::nullopt, // ARS port load past weight
       std::nullopt, // ARS port load future weight
 #endif
+      std::nullopt, // Reachability Group
   };
 }
 
diff --git a/fboss/agent/hw/sai/switch/tests/PortManagerTest.cpp b/fboss/agent/hw/sai/switch/tests/PortManagerTest.cpp
index 00a588a278f60..80945a666a5d6 100644
--- a/fboss/agent/hw/sai/switch/tests/PortManagerTest.cpp
+++ b/fboss/agent/hw/sai/switch/tests/PortManagerTest.cpp
@@ -167,6 +167,7 @@ class PortManagerTest : public ManagerTestBase {
         std::nullopt, // ARS port load past weight
         std::nullopt, // ARS port load future weight
 #endif
+        std::nullopt, // Reachability Group
     };
     return portApi.create<SaiPortTraits>(a, 0);
   }