Add support for List Operation on global reach connections

specification/network/resource-manager/Microsoft.Network/stable/2018-10-01/examples/ExpressRouteCircuitConnectionList.json

@@ -0,0 +1,51 @@
+{
+    "parameters": {
+      "connectionName": "circuitConnectionUSAUS",
+      "resourceGroupName": "rg1",
+      "api-version": "2018-10-01",
+      "subscriptionId": "subid1",
+      "circuitName": "ExpressRouteARMCircuitA",
+      "peeringName": "AzurePrivatePeering"
+    },
+    "responses": {
+      "200": {
+        "body": {
+            "value": [
+                {
+                  "id": "/subscriptions/subid1/resourceGroups/dedharcktinit/providers/Microsoft.Network/expressRouteCircuits/ExpressRouteARMCircuitA/peerings/AzurePrivatePeering/connections/circuitConnectionUSAUS",
+                  "etag": "w/\\00000000-0000-0000-0000-000000000000\\",
+                  "name": "circuitConnectionUSAUS",
+                  "properties": {
+                    "expressRouteCircuitPeering": {
+                      "id": "/subscriptions/subid1/resourceGroups/dedharcktinit/providers/Microsoft.Network/expressRouteCircuits/dedharcktlocal/peerings/AzurePrivatePeering"
+                    },
+                    "peerExpressRouteCircuitPeering": {
+                      "id": "/subscriptions/subid2/resourceGroups/dedharcktpeer/providers/Microsoft.Network/expressRouteCircuits/dedharcktremote/peerings/AzurePrivatePeering"
+                    },
+                    "authorizationKey": "946a1918-b7a2-4917-b43c-8c4cdaee006a",
+                    "addressPrefix": "10.0.0.0/24",
+                    "circuitConnectionStatus": "Connected",
+                    "provisioningState":"Succeeded"
+                  }
+                },
+                {
+                  "id": "/subscriptions/subid1/resourceGroups/dedharcktinit/providers/Microsoft.Network/expressRouteCircuits/ExpressRouteARMCircuitA/peerings/AzurePrivatePeering/connections/circuitConnectionUSEUR",
+                  "etag": "w/\\00000000-0000-0000-0000-000000000000\\",
+                  "name": "circuitConnectionUSEUR",
+                  "properties": {
+                    "expressRouteCircuitPeering": {
+                      "id": "/subscriptions/subid1/resourceGroups/dedharcktinit/providers/Microsoft.Network/expressRouteCircuits/dedharcktlocal/peerings/AzurePrivatePeering"
+                    },
+                    "peerExpressRouteCircuitPeering": {
+                      "id": "/subscriptions/subid1/resourceGroups/dedharckteurope/providers/Microsoft.Network/expressRouteCircuits/dedharcktams/peerings/AzurePrivatePeering"
+                    },
+                    "addressPrefix": "20.0.0.0/24",
+                    "circuitConnectionStatus": "Connected",
+                    "provisioningState":"Succeeded"
+                  }
+                }
+            ]
+        }
+      }
+    }
+  }

specification/network/resource-manager/Microsoft.Network/stable/2018-10-01/expressRouteCircuit.json

@@ -638,6 +638,58 @@
         "x-ms-long-running-operation": true
       }
     },
+    "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Network/expressRouteCircuits/{circuitName}/peerings/{peeringName}/connections": {
+      "get": {
+        "tags": [
+          "ExpressRouteCircuitConnections"
+        ],
+        "operationId": "ExpressRouteCircuitConnections_List",
+        "description": "Gets all global reach connections associated with a private peering in an express route circuit.",
+        "parameters": [
+          {
+            "name": "resourceGroupName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the resource group."
+          },
+          {
+            "name": "circuitName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the circuit."
+          },
+          {
+            "name": "peeringName",
+            "in": "path",
+            "required": true,
+            "type": "string",
+            "description": "The name of the peering."
+          },
+          {
+            "$ref": "./network.json#/parameters/ApiVersionParameter"
+          },
+          {
+            "$ref": "./network.json#/parameters/SubscriptionIdParameter"
+          }
+        ],
+        "responses": {
+          "200": {
+            "description": "Request successful. The operation returns a list of ExpressRouteCircuitConnections resources.",
+            "schema": {
+              "$ref": "#/definitions/ExpressRouteCircuitConnectionListResult"
+            }
+          }
+        },
+        "x-ms-pageable": {
+          "nextLinkName": "nextLink"
+        },
+        "x-ms-examples": { 
+          "List ExpressRouteCircuit Connection": { "$ref": "./examples/ExpressRouteCircuitConnectionList.json" } 
+        }
+      }
+    },
     "/subscriptions/{subscriptionId}/resourceGroups/{resourceGroupName}/providers/Microsoft.Network/expressRouteCircuits/{circuitName}": {
       "delete": {
         "tags": [
@@ -1587,6 +1639,22 @@
       ],
       "description": "Express Route Circuit Connection in an ExpressRouteCircuitPeering resource."
     },
+    "ExpressRouteCircuitConnectionListResult": {
+      "properties": {
+        "value": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/ExpressRouteCircuitConnection"
+          },
+          "description": "The global reach connection associated with Private Peering in an ExpressRoute Circuit."
+        },
+        "nextLink": {
+          "type": "string",
+          "description": "The URL to get the next set of results."
+        }
+      },
+      "description": "Response for ListConnections API service call retrieves all global reach connections that belongs to a Private Peering for an ExpressRouteCircuit."
+    },
     "ExpressRouteCircuitSku": {
       "properties": {
         "name": {