diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherConnectionMonitorCreate.json b/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherConnectionMonitorCreate.json
new file mode 100644
index 000000000000..ef99fdf89947
--- /dev/null
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherConnectionMonitorCreate.json
@@ -0,0 +1,47 @@
+{
+  "parameters" : {
+    "api-version" : "2017-11-01",
+    "subscriptionId" : "subid",
+    "resourceGroupName" : "rg1",
+    "networkWatcherName" : "nw1",
+    "connectionMonitorName" : "cm1",
+    "location": "centraluseuap",
+    "parameters" : {
+      "properties": {
+        "source": {
+          "resourceId": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Compute/virtualMachines/vm1"
+        },
+        "destination": {
+          "address": "bing.com",
+          "port": 80
+        },
+        "MonitoringIntervalInSeconds": 60
+      }
+    }
+  },
+  "responses" : {
+    "201" : {
+      "body" : {
+        "name" : "cm1",
+        "id" : "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Network/networkWatchers/nw1/connectionMonitors/cm1",
+        "etag" : "W/\"e7497f26-5f09-4559-900b-fe98f3dedb6f\"",
+        "properties" : {
+          "provisioningState": "Updating",
+          "source": {
+            "resourceId": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Compute/virtualMachines/vm1",
+            "port": 0
+          },
+          "destination": {
+            "address": "bing.com",
+            "port": 80
+          },
+          "monitoringIntervalInSeconds": 60,
+          "autoStart": true,
+          "monitoringStatus": "NotStarted"
+        },
+        "location": "centraluseuap",
+        "type": "Microsoft.Network/networkWatchers/connectionMonitors"
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherConnectionMonitorGet.json b/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherConnectionMonitorGet.json
new file mode 100644
index 000000000000..40ebf319770e
--- /dev/null
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherConnectionMonitorGet.json
@@ -0,0 +1,35 @@
+{
+  "parameters" : {
+    "api-version" : "2017-11-01",
+    "subscriptionId" : "subid",
+    "resourceGroupName" : "rg1",
+    "networkWatcherName" : "nw1",
+    "connectionMonitorName" : "cm1"
+  },
+  "responses" : {
+    "200" : {
+      "body" : {
+        "name" : "cm1",
+        "id" : "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Network/networkWatchers/nw1/connectionMonitors/cm1",
+        "etag" :  "W/\"00000000-0000-0000-0000-000000000000\"",
+        "properties" : {
+          "provisioningState" : "Succeeded",
+          "source": {
+            "resourceId": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Compute/virtualMachines/vm1",
+            "port": 0
+          },
+          "destination": {
+            "address": "bing.com",
+            "port": 80
+          },
+          "monitoringIntervalInSeconds": 60,
+          "autoStart": true,
+          "startTime": "2018-01-08T03:42:33.3387305Z",
+          "monitoringStatus": "Running"
+        },
+        "location": "centraluseuap",
+        "type": "Microsoft.Network/networkWatchers/connectionMonitors"
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherConnectionMonitorList.json b/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherConnectionMonitorList.json
new file mode 100644
index 000000000000..c9b96f5082ab
--- /dev/null
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherConnectionMonitorList.json
@@ -0,0 +1,60 @@
+{
+  "parameters" : {
+    "api-version" : "2017-11-01",
+    "subscriptionId" : "subid",
+    "resourceGroupName" : "rg1",
+    "networkWatcherName" : "nw1"
+  },
+  "responses" : {
+    "200" : {
+      "body" : {
+        "value" : [
+          {
+            "name" : "cm1",
+            "id" : "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Network/networkWatchers/nw1/connectionMonitors/cm1",
+            "etag" :  "W/\"00000000-0000-0000-0000-000000000000\"",
+            "properties" : {
+              "provisioningState" : "Succeeded",
+              "source": {
+                "resourceId": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Compute/virtualMachines/vm1",
+                "port": 0
+              },
+              "destination": {
+                "address": "bing.com",
+                "port": 80
+              },
+              "monitoringIntervalInSeconds": 60,
+              "autoStart": true,
+              "startTime": "2018-01-08T03:42:33.3387305Z",
+              "monitoringStatus": "Running"
+            },
+            "location": "centraluseuap",
+            "type": "Microsoft.Network/networkWatchers/connectionMonitors"
+          },
+          {
+            "name" : "cm2",
+            "id" : "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Network/networkWatchers/nw1/connectionMonitors/cm2",
+            "etag" :  "W/\"00000000-0000-0000-0000-000000000000\"",
+            "properties" : {
+              "provisioningState" : "Succeeded",
+              "source": {
+                "resourceId": "/subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Compute/virtualMachines/vm2",
+                "port": 0
+              },
+              "destination": {
+                "address": "google.com",
+                "port": 80
+              },
+              "monitoringIntervalInSeconds": 30,
+              "autoStart": true,
+              "startTime": "2018-01-08T05:42:33.3387305Z",
+              "monitoringStatus": "Running"
+            },
+            "location": "centraluseuap",
+            "type": "Microsoft.Network/networkWatchers/connectionMonitors"
+          }
+        ]
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherConnectionMonitorQuery.json b/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherConnectionMonitorQuery.json
new file mode 100644
index 000000000000..2c0c3ad65a9f
--- /dev/null
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherConnectionMonitorQuery.json
@@ -0,0 +1,75 @@
+{
+  "parameters" : {
+    "api-version" : "2017-11-01",
+    "subscriptionId" : "subid",
+    "resourceGroupName" : "rg1",
+    "networkWatcherName" : "nw1",
+    "connectionMonitorName" : "cm1"
+  },
+  "responses" : {
+    "200" : {
+      "body" : {
+        "states" : [
+          {
+            "connectionState" : "Reachable",
+            "startTime" : "2018-01-08T03:42:33.3387305Z",
+            "endTime" : "2018-01-08T05:12:41.5265438Z",
+            "evaluationState" : "Completed",
+            "hops" : [
+              {
+                "type" : "Source",
+                "id" : "7dbbe7aa-60ba-4650-831e-63d775d38e9e",
+                "address" : "10.1.1.4",
+                "resourceId" : "subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Network/networkInterfaces/nic0/ipConfigurations/ipconfig1",
+                "nextHopIds" : [
+                "75c8d819-b208-4584-a311-1aa45ce753f9"
+                ],
+                "issues" : []
+              },
+              {
+                "type" : "VirtualNetwork",
+                "id" : "75c8d819-b208-4584-a311-1aa45ce753f9",
+                "address" : "192.168.100.4",
+                "resourceId" : "subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Network/networkInterfaces/nic1/ipConfigurations/ipconfig1",
+                "nextHopIds" : [],
+                "issues" : []
+              }
+            ]
+          }
+        ]
+      }
+    },
+    "202" : {
+      "body" : {
+        "states" : [
+          {
+            "connectionState" : "Reachable",
+            "startTime" : "2018-01-08T03:42:33.3387305Z",
+            "endTime" : "2018-01-08T05:12:41.5265438Z",
+            "evaluationState" : "Completed",
+            "hops" : [
+              {
+                "type" : "Source",
+                "id" : "7dbbe7aa-60ba-4650-831e-63d775d38e9e",
+                "address" : "10.1.1.4",
+                "resourceId" : "subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Network/networkInterfaces/nic0/ipConfigurations/ipconfig1",
+                "nextHopIds" : [
+                "75c8d819-b208-4584-a311-1aa45ce753f9"
+                ],
+                "issues" : []
+              },
+              {
+                "type" : "VirtualNetwork",
+                "id" : "75c8d819-b208-4584-a311-1aa45ce753f9",
+                "address" : "192.168.100.4",
+                "resourceId" : "subscriptions/subid/resourceGroups/rg1/providers/Microsoft.Network/networkInterfaces/nic1/ipConfigurations/ipconfig1",
+                "nextHopIds" : [],
+                "issues" : []
+              }
+            ]
+          }
+        ]
+      }
+    }
+  }
+}
\ No newline at end of file
diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherConnectionMonitorStart.json b/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherConnectionMonitorStart.json
new file mode 100644
index 000000000000..20209c8e15dd
--- /dev/null
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherConnectionMonitorStart.json
@@ -0,0 +1,13 @@
+{
+  "parameters" : {
+    "api-version" : "2017-11-01",
+    "subscriptionId" : "subid",
+    "resourceGroupName" : "rg1",
+    "networkWatcherName" : "nw1",
+    "connectionMonitorName" : "cm1"
+  },
+  "responses" : {
+    "200" : {},
+    "202" : {}
+  }
+}
\ No newline at end of file
diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherConnectionMonitorStop.json b/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherConnectionMonitorStop.json
new file mode 100644
index 000000000000..20209c8e15dd
--- /dev/null
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherConnectionMonitorStop.json
@@ -0,0 +1,13 @@
+{
+  "parameters" : {
+    "api-version" : "2017-11-01",
+    "subscriptionId" : "subid",
+    "resourceGroupName" : "rg1",
+    "networkWatcherName" : "nw1",
+    "connectionMonitorName" : "cm1"
+  },
+  "responses" : {
+    "200" : {},
+    "202" : {}
+  }
+}
\ No newline at end of file
diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherTopologyGet.json b/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherTopologyGet.json
index b66aae4834fb..c8fb3f33e935 100644
--- a/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherTopologyGet.json
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/examples/NetworkWatcherTopologyGet.json
@@ -5,9 +5,7 @@
     "resourceGroupName" : "rg1",
     "networkWatcherName" : "nw1",
     "parameters" : {
-      "properties" : {
-        "targetResourceGroup": "rg2"
-      }
+      "targetResourceGroupName": "rg2"
     }
   },
   "responses" : {
diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/expressRouteCircuit.json b/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/expressRouteCircuit.json
index 1472a1266548..278d2eeaa759 100644
--- a/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/expressRouteCircuit.json
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/expressRouteCircuit.json
@@ -1162,7 +1162,9 @@
         },
         "peerASN": {
           "type": "integer",
-          "format": "int32",
+          "format": "int64",
+          "minimum": 1,
+          "maximum": 4294967295,
           "description": "The peer ASN."
         },
         "primaryPeerAddressPrefix": {
diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/networkWatcher.json b/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/networkWatcher.json
index 0dbe2ed234d1..12112752db12 100644
--- a/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/networkWatcher.json
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2017-11-01/networkWatcher.json
@@ -322,6 +322,11 @@
               "$ref": "#/definitions/Topology"
             }
           }
+        },
+        "x-ms-examples": {
+          "Get Topology": {
+            "$ref": "./examples/NetworkWatcherTopologyGet.json"
+          }
         }
       }
     },
@@ -1171,6 +1176,346 @@
           }
         }
       }
+    },
+    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Network/networkWatchers/{networkWatcherName}/connectionMonitors/{connectionMonitorName}": {
+      "put": {
+        "tags": [
+          "ConnectionMonitors"
+        ],
+        "operationId": "ConnectionMonitors_CreateOrUpdate",
+        "x-ms-long-running-operation": true,
+        "description": "Create or update a connection monitor.",
+        "parameters": [
+          {
+            "name": "resourceGroupName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the resource group containing Network Watcher."
+          },
+          {
+            "name": "networkWatcherName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the Network Watcher resource."
+          },
+          {
+            "name": "connectionMonitorName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the connection monitor."
+          },
+          {
+            "name": "parameters",
+            "in": "body",
+            "required": true,
+            "schema": {
+              "$ref": "#/definitions/ConnectionMonitor"
+            },
+            "description": "Parameters that define the operation to create a connection monitor."
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Update successful. The operation returns the resulting network watcher resource.",
+            "schema": {
+              "$ref": "#/definitions/ConnectionMonitorResult"
+            }
+          },
+          "201": {
+            "description": "Create successful. The operation returns the resulting network watcher resource.",
+            "schema": {
+              "$ref": "#/definitions/ConnectionMonitorResult"
+            }
+          }
+        }
+      },
+      "get": {
+        "tags": [
+          "ConnectionMonitors"
+        ],
+        "operationId": "ConnectionMonitors_Get",
+        "description": "Gets a connection monitor by name.",
+        "parameters": [
+          {
+            "name": "resourceGroupName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the resource group containing Network Watcher."
+          },
+          {
+            "name": "networkWatcherName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the Network Watcher resource."
+          },
+          {
+            "name": "connectionMonitorName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the connection monitor."
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Request successful. The operation returns a connection monitor.",
+            "schema": {
+              "$ref": "#/definitions/ConnectionMonitorResult"
+            }
+          }
+        }
+      },
+      "delete": {
+        "tags": [
+          "ConnectionMonitors"
+        ],
+        "operationId": "ConnectionMonitors_Delete",
+        "x-ms-long-running-operation": true,
+        "description": "Deletes the specified connection monitor.",
+        "parameters": [
+          {
+            "name": "resourceGroupName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the resource group containing Network Watcher."
+          },
+          {
+            "name": "networkWatcherName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the Network Watcher resource."
+          },
+          {
+            "name": "connectionMonitorName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the connection monitor."
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "204": {
+            "description": "Delete successful."
+          },
+          "202": {
+            "description": "Accepted. The operation will complete asynchronously."
+          }
+        }
+      }
+    },
+    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Network/networkWatchers/{networkWatcherName}/connectionMonitors/{connectionMonitorName}/stop": {
+      "post": {
+        "tags": [
+          "ConnectionMonitors"
+        ],
+        "operationId": "ConnectionMonitors_Stop",
+        "x-ms-long-running-operation": true,
+        "description": "Stops the specified connection monitor.",
+        "parameters": [
+          {
+            "name": "resourceGroupName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the resource group containing Network Watcher."
+          },
+          {
+            "name": "networkWatcherName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the Network Watcher resource."
+          },
+          {
+            "name": "connectionMonitorName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the connection monitor."
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Request successful. The operation stops the connection monitor."
+          },
+          "202": {
+            "description": "Accepted. The operation will complete asynchronously."
+          }
+        }
+      }
+    },
+    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Network/networkWatchers/{networkWatcherName}/connectionMonitors/{connectionMonitorName}/start": {
+      "post": {
+        "tags": [
+          "ConnectionMonitors"
+        ],
+        "operationId": "ConnectionMonitors_Start",
+        "x-ms-long-running-operation": true,
+        "description": "Starts the specified connection monitor.",
+        "parameters": [
+          {
+            "name": "resourceGroupName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the resource group containing Network Watcher."
+          },
+          {
+            "name": "networkWatcherName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the Network Watcher resource."
+          },
+          {
+            "name": "connectionMonitorName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the connection monitor."
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Request successful. The operation starts the connection monitor."
+          },
+          "202": {
+            "description": "Accepted. The operation will complete asynchronously."
+          }
+        }
+      }
+    },
+    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Network/networkWatchers/{networkWatcherName}/connectionMonitors/{connectionMonitorName}/query": {
+      "post": {
+        "tags": [
+          "ConnectionMonitors"
+        ],
+        "operationId": "ConnectionMonitors_Query",
+        "x-ms-long-running-operation": true,
+        "description": "Query a snapshot of the most recent connection states.",
+        "parameters": [
+          {
+            "name": "resourceGroupName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the resource group containing Network Watcher."
+          },
+          {
+            "name": "networkWatcherName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the Network Watcher resource."
+          },
+          {
+            "name": "connectionMonitorName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name given to the connection monitor."
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Successful query of connection states.",
+            "schema": {
+              "$ref": "#/definitions/ConnectionMonitorQueryResult"
+            }
+          },
+          "202": {
+            "description": "Accepted query of connection states.",
+            "schema": {
+              "$ref": "#/definitions/ConnectionMonitorQueryResult"
+            }
+          }
+        }
+      }
+    },
+    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Network/networkWatchers/{networkWatcherName}/connectionMonitors": {
+      "get": {
+        "tags": [
+          "ConnectionMonitors"
+        ],
+        "operationId": "ConnectionMonitors_List",
+        "description": "Lists all connection monitors for the specified Network Watcher.",
+        "parameters": [
+          {
+            "name": "resourceGroupName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the resource group containing Network Watcher."
+          },
+          {
+            "name": "networkWatcherName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the Network Watcher resource."
+          },
+          {
+            "$ref": "#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Successful connection monitor enumeration request.",
+            "schema": {
+              "$ref": "#/definitions/ConnectionMonitorListResult"
+            }
+          }
+        },
+        "x-ms-pageable": {
+          "nextLinkName": null
+        }
+      }
     }
   },
   "definitions": {
@@ -1224,13 +1569,18 @@
       "description": "List of network watcher resources."
     },
     "TopologyParameters": {
-      "required": [
-        "targetResourceGroupName"
-      ],
       "properties": {
         "targetResourceGroupName": {
           "type": "string",
           "description": "The name of the target resource group to perform topology on."
+        },
+        "targetVirtualNetwork": {
+          "$ref": "./network.json#/definitions/SubResource",
+          "description": "The reference of the Virtual Network resource."
+        },
+        "targetSubnet": {
+          "$ref": "./network.json#/definitions/SubResource",
+          "description": "The reference of the Subnet resource."
         }
       },
       "description": "Parameters that define the representation of topology."
@@ -2371,6 +2721,233 @@
         }
       },
       "description": "City or town details."
+    },
+    "ConnectionMonitor": {
+      "properties": {
+        "location": {
+          "type": "string",
+          "description": "Connection monitor location."         
+        },
+        "tags": {
+          "type": "object",
+          "additionalProperties": {
+            "type": "string"
+          },
+          "description": "Connection monitor tags."
+        },
+        "properties": {
+          "x-ms-client-flatten": true,
+          "$ref": "#/definitions/ConnectionMonitorParameters"
+        }
+      },
+      "required": [
+        "properties"
+      ],
+      "description": "Parameters that define the operation to create a connection monitor."
+    },
+    "ConnectionMonitorParameters": {
+      "properties": {
+        "source": {
+      "$ref": "#/definitions/ConnectionMonitorSource"
+        },
+        "destination": {
+      "$ref": "#/definitions/ConnectionMonitorDestination"
+        },
+        "autoStart": {
+          "type": "boolean",
+          "default": true,
+          "description": "Determines if the connection monitor will start automatically once created."
+        },
+        "monitoringIntervalInSeconds": {
+          "type": "integer",
+          "default": 60,
+          "description": "Monitoring interval in seconds."
+        }
+      },
+      "required": [
+        "source",
+        "destination"
+      ],
+      "description": "Parameters that define the operation to create a connection monitor."
+    },
+    "ConnectionMonitorSource": {
+      "properties": {
+        "resourceId": {
+          "type": "string",
+          "description": "The ID of the resource used as the source by connection monitor."
+        },
+        "port": {
+          "type": "integer",
+          "description": "The source port used by connection monitor."
+        }
+      },
+      "required": [
+        "resourceId"
+      ],
+      "description": "Describes the source of connection monitor."
+    },
+    "ConnectionMonitorDestination": {
+      "properties": {
+        "resourceId": {
+          "type": "string",
+          "description": "The ID of the resource used as the destination by connection monitor."
+        },
+        "address": {
+          "type": "string",
+          "description": "Address of the connection monitor destination (IP or domain name)."
+        },
+        "port": {
+          "type": "integer",
+          "description": "The destination port used by connection monitor."
+        }
+      },
+      "description": "Describes the destination of connection monitor."
+    },
+    "ConnectionMonitorListResult": {
+      "properties": {
+        "value": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/ConnectionMonitorResult"
+          },
+          "description": "Information about connection monitors."
+        }
+      },
+      "description": "List of connection monitors."
+    },
+    "ConnectionMonitorResult": {
+      "x-ms-azure-resource": true,
+      "properties": {
+        "name": {
+          "readOnly": true,
+          "type": "string",
+          "description": "Name of the connection monitor."
+        },
+        "id": {
+          "readOnly": true,
+          "type": "string",
+          "description": "ID of the connection monitor."
+        },
+        "etag": {
+          "type": "string",
+          "default": "A unique read-only string that changes whenever the resource is updated."
+        },
+        "type": {
+          "readOnly": true,
+          "type": "string",
+          "description": "Connection monitor type."
+        },
+        "location": {
+          "type": "string",
+          "description": "Connection monitor location."
+        },
+        "tags": {
+          "type": "object",
+          "additionalProperties": {
+            "type": "string"
+          },
+          "description": "Connection monitor tags."
+        },
+        "properties": {
+          "x-ms-client-flatten": true,
+          "$ref": "#/definitions/ConnectionMonitorResultProperties"
+        }
+      },
+      "description": "Information about the connection monitor."
+    },
+    "ConnectionMonitorResultProperties": {
+      "properties": {
+        "provisioningState": {
+          "type": "string",
+          "enum": [
+            "Succeeded",
+            "Updating",
+            "Deleting",
+            "Failed"
+          ],
+          "x-ms-enum": {
+            "name": "ProvisioningState",
+            "modelAsString": true
+          },
+          "description": "The provisioning state of the connection monitor."
+        },
+        "startTime": {
+          "type": "string",
+          "format": "date-time",
+          "description": "The date and time when the connection monitor was started."
+        },
+        "monitoringStatus": {
+          "type": "string",
+          "description": "The monitoring status of the connection monitor."
+        }
+      },
+      "allOf": [
+        {
+          "$ref": "#/definitions/ConnectionMonitorParameters"
+        }
+      ],
+      "description": "Describes the properties of a connection monitor."
+    },
+    "ConnectionMonitorQueryResult": {
+      "properties": {
+        "states": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/ConnectionStateSnapshot"
+          },
+          "description": "Information about connection states."
+        }
+      },
+      "description": "List of connection states snaphots."
+    },
+    "ConnectionStateSnapshot": {
+      "properties": {
+        "connectionState": {
+          "type": "string",
+          "enum": [
+            "Reachable",
+            "Unreachable",
+            "Unknown"
+          ],
+          "x-ms-enum": {
+            "name": "ConnectionState",
+            "modelAsString": true
+          },
+          "description": "The connection state."
+        },
+        "startTime": {
+          "type": "string",
+         "format": "date-time",
+          "description": "The start time of the connection snapshot."
+        },
+        "endTime": {
+          "type": "string",
+          "format": "date-time",
+          "description": "The end time of the connection snapshot."
+        },
+        "evaluationState": {
+          "type": "string",
+          "enum": [
+            "NotStarted",
+            "InProgress",
+            "Completed"
+          ],
+          "x-ms-enum": {
+            "name": "EvaluationState",
+            "modelAsString": true
+          },
+          "description": "Connectivity analysis evaluation state."
+        },
+        "hops": {
+          "readOnly": true,
+          "type": "array",
+          "description": "List of hops between the source and the destination.",
+          "items": {
+            "$ref": "#/definitions/ConnectivityHop"
+          }
+        }
+      },
+      "description": "Connection state snapshot."
     }
   },
   "parameters": {