diff --git a/specification/peering/resource-manager/Microsoft.Peering/preview/2020-01-01-preview/examples/CreatePeeringWithExchangeRouteServer.json b/specification/peering/resource-manager/Microsoft.Peering/preview/2020-01-01-preview/examples/CreatePeeringWithExchangeRouteServer.json
new file mode 100644
index 000000000000..abef881df319
--- /dev/null
+++ b/specification/peering/resource-manager/Microsoft.Peering/preview/2020-01-01-preview/examples/CreatePeeringWithExchangeRouteServer.json
@@ -0,0 +1,134 @@
+{
+  "parameters": {
+    "subscriptionId": "subId",
+    "resourceGroupName": "rgName",
+    "peeringName": "peeringName",
+    "api-version": "2020-01-01-preview",
+    "peering": {
+      "sku": {
+        "name": "Premium_Direct_Free"
+      },
+      "kind": "Direct",
+      "properties": {
+        "direct": {
+          "connections": [
+            {
+              "bandwidthInMbps": 10000,
+              "sessionAddressProvider": "Peer",
+              "useForPeeringService": true,
+              "peeringDBFacilityId": 99999,
+              "bgpSession": {
+                "sessionPrefixV4": "192.168.0.0/24",
+                "microsoftSessionIPv4Address": "192.168.0.123",
+                "peerSessionIPv4Address": "192.168.0.234",
+                "maxPrefixesAdvertisedV4": 1000,
+                "maxPrefixesAdvertisedV6": 100
+              },
+              "connectionIdentifier": "5F4CB5C7-6B43-4444-9338-9ABC72606C16"
+            }
+          ],
+          "peerAsn": {
+            "id": "/subscriptions/subId/providers/Microsoft.Peering/peerAsns/myAsn1"
+          },
+          "directPeeringType": "IxRs"
+        },
+        "peeringLocation": "peeringLocation0"
+      },
+      "location": "eastus"
+    }
+  },
+  "responses": {
+    "200": {
+      "body": {
+        "sku": {
+          "name": "Premium_Direct_Free",
+          "tier": "Premium",
+          "family": "Direct",
+          "size": "Free"
+        },
+        "kind": "Direct",
+        "properties": {
+          "direct": {
+            "connections": [
+              {
+                "bandwidthInMbps": 10000,
+                "provisionedBandwidthInMbps": 10000,
+                "sessionAddressProvider": "Peer",
+                "useForPeeringService": true,
+                "peeringDBFacilityId": 99999,
+                "connectionState": "Active",
+                "bgpSession": {
+                  "sessionPrefixV4": "192.168.0.0/24",
+                  "microsoftSessionIPv4Address": "192.168.0.123",
+                  "peerSessionIPv4Address": "192.168.0.234",
+                  "sessionStateV4": "Established",
+                  "sessionStateV6": "Established",
+                  "maxPrefixesAdvertisedV4": 1000,
+                  "maxPrefixesAdvertisedV6": 100
+                },
+                "connectionIdentifier": "5F4CB5C7-6B43-4444-9338-9ABC72606C16"
+              }
+            ],
+            "useForPeeringService": true,
+            "peerAsn": {
+              "id": "/subscriptions/subId/providers/Microsoft.Peering/peerAsns/myAsn1"
+            },
+            "directPeeringType": "IxRs"
+          },
+          "peeringLocation": "peeringLocation0",
+          "provisioningState": "Succeeded"
+        },
+        "location": "eastus",
+        "name": "peeringName",
+        "id": "/subscriptions/subId/resourceGroups/rgName/providers/Microsoft.Peering/peerings/peeringName",
+        "type": "Microsoft.Peering/peerings"
+      }
+    },
+    "201": {
+      "body": {
+        "sku": {
+          "name": "Premium_Direct_Free",
+          "tier": "Premium",
+          "family": "Direct",
+          "size": "Free"
+        },
+        "kind": "Direct",
+        "properties": {
+          "direct": {
+            "connections": [
+              {
+                "bandwidthInMbps": 10000,
+                "provisionedBandwidthInMbps": 0,
+                "sessionAddressProvider": "Peer",
+                "useForPeeringService": true,
+                "peeringDBFacilityId": 99999,
+                "connectionState": "PendingApproval",
+                "bgpSession": {
+                  "sessionPrefixV4": "192.168.0.0/24",
+                  "microsoftSessionIPv4Address": "192.168.0.123",
+                  "peerSessionIPv4Address": "192.168.0.234",
+                  "sessionStateV4": "PendingAdd",
+                  "sessionStateV6": "PendingAdd",
+                  "maxPrefixesAdvertisedV4": 1000,
+                  "maxPrefixesAdvertisedV6": 100
+                },
+                "connectionIdentifier": "5F4CB5C7-6B43-4444-9338-9ABC72606C16"
+              }
+            ],
+            "useForPeeringService": true,
+            "peerAsn": {
+              "id": "/subscriptions/subId/providers/Microsoft.Peering/peerAsns/myAsn1"
+            },
+            "directPeeringType": "IxRs"
+          },
+          "peeringLocation": "peeringLocation0",
+          "provisioningState": "Succeeded"
+        },
+        "location": "eastus",
+        "name": "peeringName",
+        "id": "/subscriptions/subId/resourceGroups/rgName/providers/Microsoft.Peering/peerings/peeringName",
+        "type": "Microsoft.Peering/peerings"
+      }
+    }
+  }
+}
diff --git a/specification/peering/resource-manager/Microsoft.Peering/preview/2020-01-01-preview/peering.json b/specification/peering/resource-manager/Microsoft.Peering/preview/2020-01-01-preview/peering.json
index 9ab619f144b0..361ecf8332b2 100644
--- a/specification/peering/resource-manager/Microsoft.Peering/preview/2020-01-01-preview/peering.json
+++ b/specification/peering/resource-manager/Microsoft.Peering/preview/2020-01-01-preview/peering.json
@@ -995,6 +995,9 @@
           },
           "Create an exchange peering": {
             "$ref": "./examples/CreateExchangePeering.json"
+          },
+          "Create a peering with exchange route server": {
+            "$ref": "./examples/CreatePeeringWithExchangeRouteServer.json"
           }
         }
       },
@@ -2222,13 +2225,11 @@
         },
         "microsoftSessionIPv4Address": {
           "description": "The IPv4 session address on Microsoft's end.",
-          "type": "string",
-          "readOnly": true
+          "type": "string"
         },
         "microsoftSessionIPv6Address": {
           "description": "The IPv6 session address on Microsoft's end.",
-          "type": "string",
-          "readOnly": true
+          "type": "string"
         },
         "peerSessionIPv4Address": {
           "description": "The IPv4 session address on peer's end.",