diff --git a/custom-words.txt b/custom-words.txt
index 18ae93d414ad..6acf8af868f5 100644
--- a/custom-words.txt
+++ b/custom-words.txt
@@ -1676,6 +1676,7 @@ Unregistering
 Unregisters
 unrestorable
 unsubstituted
+Unsynced
 untagged
 Untracked
 unvalidated
diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2020-07-01/examples/VirtualNetworkPeeringCreate.json b/specification/network/resource-manager/Microsoft.Network/stable/2020-07-01/examples/VirtualNetworkPeeringCreate.json
index 51507e38cf87..39df51f05681 100644
--- a/specification/network/resource-manager/Microsoft.Network/stable/2020-07-01/examples/VirtualNetworkPeeringCreate.json
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2020-07-01/examples/VirtualNetworkPeeringCreate.json
@@ -11,6 +11,7 @@
         "allowForwardedTraffic": true,
         "allowGatewayTransit": false,
         "useRemoteGateways": false,
+        "syncRemoteAddressSpace": true,
         "remoteVirtualNetwork": {
           "id": "/subscriptions/subid/resourceGroups/peerTest/providers/Microsoft.Network/virtualNetworks/vnet2"
         }
@@ -35,12 +36,18 @@
               "12.0.0.0/8"
             ]
           },
+          "remoteVirtualNetworkAddressSpace": {
+            "addressPrefixes": [
+              "12.0.0.0/8"
+            ]
+          },
           "remoteBgpCommunities": {
             "virtualNetworkCommunity": "12076:20002",
             "regionalCommunity": "12076:50004"
           },
           "peeringState": "Initiated",
-          "provisioningState": "Succeeded"
+          "provisioningState": "Succeeded",
+          "peeringSyncLevel": "FullySynced"
         }
       }
     },
@@ -61,12 +68,18 @@
               "12.0.0.0/8"
             ]
           },
+          "remoteVirtualNetworkAddressSpace": {
+            "addressPrefixes": [
+              "12.0.0.0/8"
+            ]
+          },
           "remoteBgpCommunities": {
             "virtualNetworkCommunity": "12076:20002",
             "regionalCommunity": "12076:50004"
           },
           "peeringState": "Initiated",
-          "provisioningState": "Succeeded"
+          "provisioningState": "Succeeded",
+          "peeringSyncLevel": "FullySynced"
         }
       }
     }
diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2020-07-01/examples/VirtualNetworkPeeringGet.json b/specification/network/resource-manager/Microsoft.Network/stable/2020-07-01/examples/VirtualNetworkPeeringGet.json
index 32569e79424e..6998d9a99703 100644
--- a/specification/network/resource-manager/Microsoft.Network/stable/2020-07-01/examples/VirtualNetworkPeeringGet.json
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2020-07-01/examples/VirtualNetworkPeeringGet.json
@@ -24,12 +24,18 @@
               "12.0.0.0/8"
             ]
           },
+          "remoteVirtualNetworkAddressSpace": {
+            "addressPrefixes": [
+              "12.0.0.0/8"
+            ]
+          },
           "remoteBgpCommunities": {
             "virtualNetworkCommunity": "12076:20002",
             "regionalCommunity": "12076:50004"
           },
           "peeringState": "Initiated",
-          "provisioningState": "Succeeded"
+          "provisioningState": "Succeeded",
+          "peeringSyncLevel": "FullySynced"
         }
       }
     }
diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2020-07-01/examples/VirtualNetworkPeeringList.json b/specification/network/resource-manager/Microsoft.Network/stable/2020-07-01/examples/VirtualNetworkPeeringList.json
index af8a21220f94..257400138675 100644
--- a/specification/network/resource-manager/Microsoft.Network/stable/2020-07-01/examples/VirtualNetworkPeeringList.json
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2020-07-01/examples/VirtualNetworkPeeringList.json
@@ -25,12 +25,18 @@
                   "12.0.0.0/8"
                 ]
               },
+              "remoteVirtualNetworkAddressSpace": {
+                "addressPrefixes": [
+                  "12.0.0.0/8"
+                ]
+              },
               "remoteBgpCommunities": {
                 "virtualNetworkCommunity": "12076:20002",
                 "regionalCommunity": "12076:50004"
               },
               "peeringState": "Initiated",
-              "provisioningState": "Succeeded"
+              "provisioningState": "Succeeded",
+              "peeringSyncLevel": "FullySynced"
             }
           },
           {
@@ -49,12 +55,18 @@
                   "13.0.0.0/8"
                 ]
               },
+              "remoteVirtualNetworkAddressSpace": {
+                "addressPrefixes": [
+                  "13.0.0.0/8"
+                ]
+              },
               "remoteBgpCommunities": {
                 "virtualNetworkCommunity": "12076:20003",
                 "regionalCommunity": "12076:50004"
               },
               "peeringState": "Initiated",
-              "provisioningState": "Succeeded"
+              "provisioningState": "Succeeded",
+              "peeringSyncLevel": "FullySynced"
             }
           }
         ]
diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2020-07-01/virtualNetwork.json b/specification/network/resource-manager/Microsoft.Network/stable/2020-07-01/virtualNetwork.json
index 1be938b579ad..91ca76e75d9b 100644
--- a/specification/network/resource-manager/Microsoft.Network/stable/2020-07-01/virtualNetwork.json
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2020-07-01/virtualNetwork.json
@@ -1550,7 +1550,11 @@
         },
         "remoteAddressSpace": {
           "$ref": "#/definitions/AddressSpace",
-          "description": "The reference to the remote virtual network address space."
+          "description": "The reference to the address space peered with the remote virtual network."
+        },
+        "remoteVirtualNetworkAddressSpace": {
+          "$ref": "#/definitions/AddressSpace",
+          "description": "The reference to the current address space of the remote virtual network."
         },
         "remoteBgpCommunities": {
           "$ref": "#/definitions/VirtualNetworkBgpCommunities",
@@ -1570,6 +1574,25 @@
             "modelAsString": true
           }
         },
+        "peeringSyncLevel": {
+          "type": "string",
+          "description": "The peering sync status of the virtual network peering.",
+          "enum": [
+            "FullySynced",
+            "RemoteUnsynced",
+            "LocalUnsynced",
+            "LocalAndRemoteUnsynced"
+          ],
+          "x-ms-enum": {
+            "name": "VirtualNetworkPeeringLevel",
+            "modelAsString": true
+          }
+        },
+        "syncRemoteAddressSpace": {
+          "type": "boolean",
+          "default": false,
+          "description": "Provided when user wants to sync the peering with address space on the remote virtual network after the address space is updated."
+        },
         "provisioningState": {
           "readOnly": true,
           "$ref": "./network.json#/definitions/ProvisioningState",