diff --git a/gearsyncd/gearboxparser.cpp b/gearsyncd/gearboxparser.cpp
index 65e0b4f05dee..863ee57dabf1 100644
--- a/gearsyncd/gearboxparser.cpp
+++ b/gearsyncd/gearboxparser.cpp
@@ -143,6 +143,14 @@ bool GearboxParser::parse()
             val = phy["bus_id"];
             attr = std::make_pair("bus_id", std::to_string(val.get<int>()));
             attrs.push_back(attr);
+            if (phy.find("hwinfo") == phy.end())
+            {
+                SWSS_LOG_ERROR("missing 'hwinfo' field in 'phys' item %d in gearbox configuration", iter);
+                return false;
+            }
+            val = phy["hwinfo"];
+            attr = std::make_pair("hwinfo", std::string(val.get<std::string>()));
+            attrs.push_back(attr);
             std::string key;
             key = "phy:" + std::to_string(phyId);
             if (getWriteToDb() == true) 
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_empty_ethernet_line_lanes.json b/gearsyncd/tests/configs/negative/gearbox_config_empty_ethernet_line_lanes.json
index 16a790b5193d..763d716113ad 100644
--- a/gearsyncd/tests/configs/negative/gearbox_config_empty_ethernet_line_lanes.json
+++ b/gearsyncd/tests/configs/negative/gearbox_config_empty_ethernet_line_lanes.json
@@ -9,7 +9,8 @@
       "config_file": "tests/configs/positive/phy1_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-1.bcm",     
       "phy_access": "mdio",
-      "bus_id": 0
+      "bus_id": 0,
+      "hwinfo": "mdio0/0"
     },
     {
       "phy_id": 1,
@@ -20,7 +21,8 @@
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-2.bcm",     
       "phy_access": "i2c",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ],
   "interfaces": [
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_empty_ethernet_system_lanes.json b/gearsyncd/tests/configs/negative/gearbox_config_empty_ethernet_system_lanes.json
index 86bedc7c1dc8..5852ae204b8a 100644
--- a/gearsyncd/tests/configs/negative/gearbox_config_empty_ethernet_system_lanes.json
+++ b/gearsyncd/tests/configs/negative/gearbox_config_empty_ethernet_system_lanes.json
@@ -9,7 +9,8 @@
       "config_file": "tests/configs/positive/phy1_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-1.bcm",     
       "phy_access": "mdio",
-      "bus_id": 0
+      "bus_id": 0,
+      "hwinfo": "mdio0/0"
     },
     {
       "phy_id": 1,
@@ -20,7 +21,8 @@
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-2.bcm",     
       "phy_access": "i2c",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ],
   "interfaces": [
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_invalid_array.json b/gearsyncd/tests/configs/negative/gearbox_config_invalid_array.json
index 3533c0e54bc3..d346f0242ae8 100644
--- a/gearsyncd/tests/configs/negative/gearbox_config_invalid_array.json
+++ b/gearsyncd/tests/configs/negative/gearbox_config_invalid_array.json
@@ -9,7 +9,8 @@
       "config_file": "tests/configs/positive/phy1_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-1.bcm",     
       "phy_access": "mdio",
-      "bus_id": 0
+      "bus_id": 0,
+      "hwinfo": "mdio0/0"
     },
     {
       "phy_id": 1,
@@ -20,7 +21,8 @@
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-2.bcm",     
       "phy_access": "i2c",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ],
   "interfaces": [
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_invalid_json.json b/gearsyncd/tests/configs/negative/gearbox_config_invalid_json.json
index eae5bc7aa239..64d8272bee30 100644
--- a/gearsyncd/tests/configs/negative/gearbox_config_invalid_json.json
+++ b/gearsyncd/tests/configs/negative/gearbox_config_invalid_json.json
@@ -9,7 +9,8 @@
       "config_file": "tests/configs/positive/phy1_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-1.bcm",     
       "phy_access": "mdio",
-      "bus_id": 0
+      "bus_id": 0,
+      "hwinfo": "mdio0/0"
     },
     {
       "phy_id": 1,
@@ -20,7 +21,8 @@
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-2.bcm",     
       "phy_access": "i2c",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ],
   "interfaces": [
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_invalid_phy_config_file.json b/gearsyncd/tests/configs/negative/gearbox_config_invalid_phy_config_file.json
index c567489538a6..944eeb22998a 100644
--- a/gearsyncd/tests/configs/negative/gearbox_config_invalid_phy_config_file.json
+++ b/gearsyncd/tests/configs/negative/gearbox_config_invalid_phy_config_file.json
@@ -9,7 +9,8 @@
       "config_file": "tests/configs/positive/phy_config_does_not_exist.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-1.bcm",     
       "phy_access": "mdio",
-      "bus_id": 0
+      "bus_id": 0,
+      "hwinfo": "mdio0/0"
     },
     {
       "phy_id": 1,
@@ -20,7 +21,8 @@
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-2.bcm",     
       "phy_access": "i2c",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ],
   "interfaces": [
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_index.json b/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_index.json
index b863410e641e..b54100671195 100644
--- a/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_index.json
+++ b/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_index.json
@@ -9,7 +9,8 @@
       "config_file": "tests/configs/positive/phy1_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-1.bcm",     
       "phy_access": "mdio",
-      "bus_id": 0
+      "bus_id": 0,
+      "hwinfo": "mdio0/0"
     },
     {
       "phy_id": 1,
@@ -20,7 +21,8 @@
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-2.bcm",     
       "phy_access": "i2c",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ],
   "interfaces": [
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_line_lane_speed.json b/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_line_lane_speed.json
index b3dea2095554..db0e700e8578 100644
--- a/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_line_lane_speed.json
+++ b/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_line_lane_speed.json
@@ -9,7 +9,8 @@
       "config_file": "tests/configs/positive/phy1_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-1.bcm",     
       "phy_access": "mdio",
-      "bus_id": 0
+      "bus_id": 0,
+      "hwinfo": "mdio0/0"
     },
     {
       "phy_id": 1,
@@ -20,7 +21,8 @@
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-2.bcm",     
       "phy_access": "i2c",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ],
   "interfaces": [
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_line_lanes.json b/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_line_lanes.json
index f245b8adf7ac..d8b79f54959e 100644
--- a/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_line_lanes.json
+++ b/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_line_lanes.json
@@ -9,7 +9,8 @@
       "config_file": "tests/configs/positive/phy1_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-1.bcm",     
       "phy_access": "mdio",
-      "bus_id": 0
+      "bus_id": 0,
+      "hwinfo": "mdio0/0"
     },
     {
       "phy_id": 1,
@@ -20,7 +21,8 @@
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-2.bcm",     
       "phy_access": "i2c",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ],
   "interfaces": [
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_phy_id.json b/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_phy_id.json
index b76e613a4479..dd9a4ca11323 100644
--- a/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_phy_id.json
+++ b/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_phy_id.json
@@ -9,7 +9,8 @@
       "config_file": "tests/configs/positive/phy1_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-1.bcm",     
       "phy_access": "mdio",
-      "bus_id": 0
+      "bus_id": 0,
+      "hwinfo": "mdio0/0"
     },
     {
       "phy_id": 1,
@@ -20,7 +21,8 @@
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-2.bcm",     
       "phy_access": "i2c",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ],
   "interfaces": [
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_system_lane_speed.json b/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_system_lane_speed.json
index b3dea2095554..2bcafd59eef2 100644
--- a/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_system_lane_speed.json
+++ b/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_system_lane_speed.json
@@ -9,7 +9,8 @@
       "config_file": "tests/configs/positive/phy1_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-1.bcm",     
       "phy_access": "mdio",
-      "bus_id": 0
+      "bus_id": 0,
+      "hwinfo": "mdio0/3"
     },
     {
       "phy_id": 1,
@@ -20,7 +21,8 @@
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-2.bcm",     
       "phy_access": "i2c",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ],
   "interfaces": [
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_system_lanes.json b/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_system_lanes.json
index 1a6a60dc0d86..f5f80b24dc47 100644
--- a/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_system_lanes.json
+++ b/gearsyncd/tests/configs/negative/gearbox_config_missing_ethernet_system_lanes.json
@@ -9,7 +9,8 @@
       "config_file": "tests/configs/positive/phy1_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-1.bcm",     
       "phy_access": "mdio",
-      "bus_id": 0
+      "bus_id": 0,
+      "hwinfo": "mdio0/0"
     },
     {
       "phy_id": 1,
@@ -20,7 +21,8 @@
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-2.bcm",     
       "phy_access": "i2c",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ],
   "interfaces": [
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_missing_interfaces.json b/gearsyncd/tests/configs/negative/gearbox_config_missing_interfaces.json
index 84b2056780c0..9bc632bbe9bd 100644
--- a/gearsyncd/tests/configs/negative/gearbox_config_missing_interfaces.json
+++ b/gearsyncd/tests/configs/negative/gearbox_config_missing_interfaces.json
@@ -9,7 +9,8 @@
       "config_file": "tests/configs/positive/phy1_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-1.bcm",     
       "phy_access": "mdio",
-      "bus_id": 0
+      "bus_id": 0,
+      "hwinfo": "mdio0/0"
     },
     {
       "phy_id": 1,
@@ -20,7 +21,8 @@
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-2.bcm",     
       "phy_access": "i2c",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ]
 }
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_address.json b/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_address.json
index 5989dd0856da..5d6e4060280f 100644
--- a/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_address.json
+++ b/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_address.json
@@ -7,7 +7,8 @@
       "firmware_path": "/tmp/phy-example1.bin",
       "config_file": "tests/configs/positive/phy1_config_1.json",
       "phy_access": "MDIO(NPU)",
-      "bus_id": 0
+      "bus_id": 0,
+      "hwinfo": "mdio0/0"
     },
     {
       "phy_id": 1,
@@ -17,7 +18,8 @@
       "firmware_path": "/tmp/phy-example2.bin",
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "phy_access": "I2C",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ],
   "interfaces": [
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_bus_id.json b/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_bus_id.json
index 1b37dfbec2e3..928dca874924 100644
--- a/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_bus_id.json
+++ b/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_bus_id.json
@@ -7,7 +7,8 @@
       "lib_name": "libsai_phy_example1.so",
       "firmware_path": "/tmp/phy-example1.bin",
       "config_file": "tests/configs/positive/phy1_config_1.json",
-      "phy_access": "MDIO(NPU)"
+      "phy_access": "MDIO(NPU)",
+      "hwinfo": "mdio0/0"
     },
     {
       "phy_id": 1,
@@ -17,7 +18,8 @@
       "firmware_path": "/tmp/phy-example2.bin",
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "phy_access": "I2C",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ],
   "interfaces": [
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_config_file.json b/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_config_file.json
index e9589d4daa2f..ca96aefe411b 100644
--- a/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_config_file.json
+++ b/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_config_file.json
@@ -7,7 +7,8 @@
       "lib_name": "libsai_phy_example1.so",
       "firmware_path": "/tmp/phy-example1.bin",
       "phy_access": "MDIO(NPU)",
-      "bus_id": 0
+      "bus_id": 0,
+      "hwinfo": "mdio0/0"
     },
     {
       "phy_id": 1,
@@ -17,7 +18,8 @@
       "firmware_path": "/tmp/phy-example2.bin",
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "phy_access": "I2C",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ],
   "interfaces": [
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_firmware_path.json b/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_firmware_path.json
index 33cbfc176c7e..8fac85842b57 100644
--- a/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_firmware_path.json
+++ b/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_firmware_path.json
@@ -7,7 +7,8 @@
       "lib_name": "libsai_phy_example1.so",
       "config_file": "tests/configs/positive/phy1_config_1.json",
       "phy_access": "MDIO(NPU)",
-      "bus_id": 0
+      "bus_id": 0,
+      "hwinfo": "mdio0/0"
     },
     {
       "phy_id": 1,
@@ -17,7 +18,8 @@
       "firmware_path": "/tmp/phy-example2.bin",
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "phy_access": "I2C",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ],
   "interfaces": [
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_hwinfo.json b/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_hwinfo.json
new file mode 100644
index 000000000000..e06cb5904854
--- /dev/null
+++ b/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_hwinfo.json
@@ -0,0 +1,46 @@
+{
+  "phys": [
+    {
+      "phy_id": 0,
+      "name": "example-1",
+      "address": "0x1000",
+      "lib_name": "libsai_phy_example1.so",
+      "firmware_path": "/tmp/phy-example1.bin",
+      "config_file": "tests/configs/positive/phy1_config_1.json",
+      "phy_access": "mdio",
+      "bus_id": 0
+    },
+    {
+      "phy_id": 1,
+      "name": "example-2",
+      "address": "0x2000",
+      "lib_name": "libsai_phy_example2.so",
+      "firmware_path": "/tmp/phy-example2.bin",
+      "config_file": "tests/configs/positive/phy2_config_1.json",
+      "sai_init_config_file": "/usr/share/sonic/hwsku/example-2.bcm",
+      "phy_access": "i2c",
+      "bus_id": 1,
+      "hwinfo": ""
+    }
+  ],
+  "interfaces": [
+    {
+      "index": 1,
+      "phy_id" : 0,
+      "system_lanes": [38,39],
+      "line_lanes": [30,31,32,33]
+    },
+    {
+      "index": 1,
+      "phy_id" : 0,
+      "system_lanes": [40,41],
+      "line_lanes": [34,35,36,37]
+    },
+    {
+      "index": 1,
+      "phy_id" : 1,
+      "system_lanes": [4,5],
+      "line_lanes": [0,1,2,3]
+    }
+  ]
+}
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_id.json b/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_id.json
index 39b4a0e57a67..97fb90a99f74 100644
--- a/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_id.json
+++ b/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_id.json
@@ -8,7 +8,8 @@
       "config_file": "tests/configs/positive/phy1_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-1.bcm",     
       "phy_access": "mdio",
-      "bus_id": 0
+      "bus_id": 0,
+      "hwinfo": "mdio0/0"
     },
     {
       "phy_id": 1,
@@ -19,7 +20,8 @@
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-2.bcm",     
       "phy_access": "i2c",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ],
   "interfaces": [
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_lib_name.json b/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_lib_name.json
index 3a204e07d748..f33ac8dfddff 100644
--- a/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_lib_name.json
+++ b/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_lib_name.json
@@ -7,7 +7,8 @@
       "firmware_path": "/tmp/phy-example1.bin",
       "config_file": "tests/configs/positive/phy1_config_1.json",
       "phy_access": "MDIO(NPU)",
-      "bus_id": 0
+      "bus_id": 0,
+      "hwinfo": "mdio0/0"
     },
     {
       "phy_id": 1,
@@ -17,7 +18,8 @@
       "firmware_path": "/tmp/phy-example2.bin",
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "phy_access": "I2C",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ],
   "interfaces": [
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_name.json b/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_name.json
index f74dfb154a29..d6eb57df9785 100644
--- a/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_name.json
+++ b/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_name.json
@@ -7,7 +7,8 @@
       "firmware_path": "/tmp/phy-example1.bin",
       "config_file": "tests/configs/positive/phy1_config_1.json",
       "phy_access": "MDIO(NPU)",
-      "bus_id": 0
+      "bus_id": 0,
+      "hwinfo": "mdio0/0"
     },
     {
       "phy_id": 1,
@@ -17,7 +18,8 @@
       "firmware_path": "/tmp/phy-example2.bin",
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "phy_access": "I2C",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ],
   "interfaces": [
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_phy_access.json b/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_phy_access.json
index 33fd9f368f47..f6d97f7e9069 100644
--- a/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_phy_access.json
+++ b/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_phy_access.json
@@ -7,7 +7,8 @@
       "lib_name": "libsai_phy_example1.so",
       "firmware_path": "/tmp/phy-example1.bin",
       "config_file": "tests/configs/positive/phy1_config_1.json",
-      "bus_id": 0
+      "bus_id": 0,
+      "hwinfo": "mdio0/0"
     },
     {
       "phy_id": 1,
@@ -17,7 +18,8 @@
       "firmware_path": "/tmp/phy-example2.bin",
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "phy_access": "I2C",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ],
   "interfaces": [
diff --git a/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_sai_init_config_file.json b/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_sai_init_config_file.json
index fd28a59ef17d..048240e824ad 100644
--- a/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_sai_init_config_file.json
+++ b/gearsyncd/tests/configs/negative/gearbox_config_missing_phy_sai_init_config_file.json
@@ -8,7 +8,8 @@
       "firmware_path": "/tmp/phy-example1.bin",
       "config_file": "tests/configs/positive/phy1_config_1.json",
       "phy_access": "mdio",
-      "bus_id": 0
+      "bus_id": 0,
+      "hwinfo": "mdio0/0"
     },
     {
       "phy_id": 1,
@@ -19,7 +20,8 @@
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-2.bcm",     
       "phy_access": "i2c",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ],
   "interfaces": [
diff --git a/gearsyncd/tests/configs/positive/gearbox_config_1.json b/gearsyncd/tests/configs/positive/gearbox_config_1.json
index b3dea2095554..190eefedf844 100644
--- a/gearsyncd/tests/configs/positive/gearbox_config_1.json
+++ b/gearsyncd/tests/configs/positive/gearbox_config_1.json
@@ -9,7 +9,8 @@
       "config_file": "tests/configs/positive/phy1_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-1.bcm",     
       "phy_access": "mdio",
-      "bus_id": 0
+      "bus_id": 0,
+      "hwinfo": "mdio0/1"
     },
     {
       "phy_id": 1,
@@ -20,7 +21,8 @@
       "config_file": "tests/configs/positive/phy2_config_1.json",
       "sai_init_config_file": "/usr/share/sonic/hwsku/example-2.bcm",     
       "phy_access": "i2c",
-      "bus_id": 1
+      "bus_id": 1,
+      "hwinfo": ""
     }
   ],
   "interfaces": [
diff --git a/gearsyncd/tests/testgearparser.cpp b/gearsyncd/tests/testgearparser.cpp
index 26422589990d..baf97f4780b8 100644
--- a/gearsyncd/tests/testgearparser.cpp
+++ b/gearsyncd/tests/testgearparser.cpp
@@ -63,6 +63,8 @@ void negativeConfigTest()
     CU_ASSERT_EQUAL(ret, false);
     ret = handleGearboxConfigFile("tests/configs/negative/gearbox_config_missing_phy_bus_id.json", false);
     CU_ASSERT_EQUAL(ret, false);
+    ret = handleGearboxConfigFile("tests/configs/negative/gearbox_config_missing_phy_hwinfo.json", false);
+    CU_ASSERT_EQUAL(ret, false);
     ret = handleGearboxConfigFile("tests/configs/negative/gearbox_config_invalid_phy_config_file.json", false);
     CU_ASSERT_EQUAL(ret, false);
 
diff --git a/lib/gearboxutils.cpp b/lib/gearboxutils.cpp
index d17ed3a02fb7..989de4d22f7c 100644
--- a/lib/gearboxutils.cpp
+++ b/lib/gearboxutils.cpp
@@ -173,6 +173,10 @@ std::map<int, gearbox_phy_t> GearboxUtils::loadPhyMap(Table *gearboxTable)
                 {
                     phy.access = val.second;
                 }
+                else if (val.first == "hwinfo")
+                {
+                    phy.hwinfo = val.second;
+                }
                 else if (val.first == "address")
                 {
                     phy.address = std::stoi(val.second);
diff --git a/lib/gearboxutils.h b/lib/gearboxutils.h
index 95e362d20e94..0a70c62d77f2 100644
--- a/lib/gearboxutils.h
+++ b/lib/gearboxutils.h
@@ -41,6 +41,7 @@ typedef struct
     std::string sai_init_config_file;
     std::string config_file;
     std::string access;
+    std::string hwinfo;
     uint32_t address;
     uint32_t bus_id;
 } gearbox_phy_t;
diff --git a/orchagent/saihelper.cpp b/orchagent/saihelper.cpp
index e5a59979ee89..d047852488fe 100644
--- a/orchagent/saihelper.cpp
+++ b/orchagent/saihelper.cpp
@@ -15,6 +15,7 @@ extern "C" {
 #include <tuple>
 #include <vector>
 #include <linux/limits.h>
+#include <net/if.h>
 #include "timestamp.h"
 #include "sai_serialize.h"
 #include "saihelper.h"
@@ -22,8 +23,14 @@ extern "C" {
 using namespace std;
 using namespace swss;
 
+#define _STR(s) #s
+#define STR(s) _STR(s)
+
 #define CONTEXT_CFG_FILE "/usr/share/sonic/hwsku/context_config.json"
 
+// hwinfo = "INTERFACE_NAME/PHY ID", mii_ioctl_data->phy_id is a __u16
+#define HWINFO_MAX_SIZE IFNAMSIZ + 1 + 5
+
 /* Initialize all global api pointers */
 sai_switch_api_t*           sai_switch_api;
 sai_bridge_api_t*           sai_bridge_api;
@@ -271,6 +278,10 @@ sai_status_t initSaiPhyApi(swss::gearbox_phy_t *phy)
     vector<sai_attribute_t> attrs;
     sai_status_t status;
     char fwPath[PATH_MAX];
+    char hwinfo[HWINFO_MAX_SIZE + 1];
+    char hwinfoIntf[IFNAMSIZ + 1];
+    unsigned int hwinfoPhyid;
+    int ret;
 
     SWSS_LOG_ENTER();
 
@@ -286,9 +297,23 @@ sai_status_t initSaiPhyApi(swss::gearbox_phy_t *phy)
     attr.value.u32 = 0;
     attrs.push_back(attr);
 
+    ret = sscanf(phy->hwinfo.c_str(), "%" STR(IFNAMSIZ) "[^/]/%u", hwinfoIntf, &hwinfoPhyid);
+    if (ret != 2) {
+        SWSS_LOG_ERROR("BOX: hardware info doesn't match the 'interface_name/phyid' "
+                       "format");
+        return SAI_STATUS_FAILURE;
+    }
+
+    if (hwinfoPhyid > std::numeric_limits<uint16_t>::max()) {
+        SWSS_LOG_ERROR("BOX: phyid is bigger than maximum limit");
+        return SAI_STATUS_FAILURE;
+    }
+
+    strcpy(hwinfo, phy->hwinfo.c_str());
+
     attr.id = SAI_SWITCH_ATTR_SWITCH_HARDWARE_INFO;
-    attr.value.s8list.count = 0;
-    attr.value.s8list.list = 0;
+    attr.value.s8list.count = (uint32_t) phy->hwinfo.length();
+    attr.value.s8list.list = (int8_t *) hwinfo;
     attrs.push_back(attr);
 
     if (phy->firmware.length() == 0)