diff --git a/src/sonic-yang-models/doc/Configuration.md b/src/sonic-yang-models/doc/Configuration.md
index f681aad44a..8d8acb0fdd 100644
--- a/src/sonic-yang-models/doc/Configuration.md
+++ b/src/sonic-yang-models/doc/Configuration.md
@@ -837,7 +837,8 @@ instance is supported in SONiC.
         "type": "ToRRouter",
         "bgp_adv_lo_prefix_as_128" : "true",
         "buffer_model": "traditional",
-        "yang_config_validation": "disable"
+        "yang_config_validation": "disable",
+        "rack_mgmt_map": "dummy_value"
     }
   }
 }
diff --git a/src/sonic-yang-models/tests/files/sample_config_db.json b/src/sonic-yang-models/tests/files/sample_config_db.json
index 4b534157bf..db35da3781 100644
--- a/src/sonic-yang-models/tests/files/sample_config_db.json
+++ b/src/sonic-yang-models/tests/files/sample_config_db.json
@@ -325,7 +325,8 @@
                 "sub_role": "FrontEnd",
                 "dhcp_server": "disabled",
                 "bgp_adv_lo_prefix_as_128": "true",
-                "yang_config_validation": "disable"
+                "yang_config_validation": "disable",
+                "rack_mgmt_map": "dummy_value"
             }
         },
         "VLAN": {
diff --git a/src/sonic-yang-models/tests/yang_model_tests/tests/device_metadata.json b/src/sonic-yang-models/tests/yang_model_tests/tests/device_metadata.json
index e55ba4c825..c654b90ebc 100644
--- a/src/sonic-yang-models/tests/yang_model_tests/tests/device_metadata.json
+++ b/src/sonic-yang-models/tests/yang_model_tests/tests/device_metadata.json
@@ -125,6 +125,13 @@
     },
     "DEVICE_METADATA_ADVERTISE_LO_PREFIX_AS_128": {
         "desc": "Verifying advertising lo prefix as /128."
+    },
+    "DEVICE_METADATA_VALID_RACK_MGMT_MAP": {
+        "desc": "Verifying rack_mgmt_map configuration."
+    },
+    "DEVICE_METADATA_INVALID_RACK_MGMT_MAP": {
+        "desc": "Verifying invalid rack_mgmt_map configuration.",
+        "eStr": "Invalid length for the rack mgmt map."
     }
 
 }
diff --git a/src/sonic-yang-models/tests/yang_model_tests/tests_config/device_metadata.json b/src/sonic-yang-models/tests/yang_model_tests/tests_config/device_metadata.json
index 638f83d562..effa56806e 100644
--- a/src/sonic-yang-models/tests/yang_model_tests/tests_config/device_metadata.json
+++ b/src/sonic-yang-models/tests/yang_model_tests/tests_config/device_metadata.json
@@ -332,5 +332,23 @@
                 }
             }
         }
+    },
+    "DEVICE_METADATA_VALID_RACK_MGMT_MAP": {
+        "sonic-device_metadata:sonic-device_metadata": {
+            "sonic-device_metadata:DEVICE_METADATA": {
+                "sonic-device_metadata:localhost": {
+                    "rack_mgmt_map": "dummy_value"
+                }
+            }
+        }
+    },
+    "DEVICE_METADATA_INVALID_RACK_MGMT_MAP": {
+        "sonic-device_metadata:sonic-device_metadata": {
+            "sonic-device_metadata:DEVICE_METADATA": {
+                "sonic-device_metadata:localhost": {
+                    "rack_mgmt_map": "dummy_value-dummy_value-dummy_value-dummy_value-dummy_value-dummy_value-dummy_value-dummy_value-dummy_value-dummy_value-dummy_value-dummy_value-dummy_value"
+                }
+            }
+        }
     }
 }
diff --git a/src/sonic-yang-models/yang-models/sonic-device_metadata.yang b/src/sonic-yang-models/yang-models/sonic-device_metadata.yang
index 62daae4206..a060d8023f 100644
--- a/src/sonic-yang-models/yang-models/sonic-device_metadata.yang
+++ b/src/sonic-yang-models/yang-models/sonic-device_metadata.yang
@@ -204,6 +204,15 @@ module sonic-device_metadata {
                     description "Advertise Loopback0 interface IPv6 /128 subnet address as it is with set to true.
                                  By default SONiC advertises /128 subnet prefix in Loopback0 as /64 subnet route";
                 }
+
+                leaf rack_mgmt_map {
+                    type string {
+                        length 0..128 {
+                            error-message "Invalid length for the rack mgmt map.";
+                        }
+                    }
+                    description "Information of rack mgmt map.";
+                }
             }
             /* end of container localhost */
         }