diff --git a/specification/network/resource-manager/Microsoft.Network/stable/2019-11-01/expressRouteCircuit.json b/specification/network/resource-manager/Microsoft.Network/stable/2019-11-01/expressRouteCircuit.json
index 54a71f13a3d2..bce9d8c0c75b 100644
--- a/specification/network/resource-manager/Microsoft.Network/stable/2019-11-01/expressRouteCircuit.json
+++ b/specification/network/resource-manager/Microsoft.Network/stable/2019-11-01/expressRouteCircuit.json
@@ -1605,12 +1605,10 @@
     "AuthorizationPropertiesFormat": {
       "properties": {
         "authorizationKey": {
-          "readOnly": true,
           "type": "string",
           "description": "The authorization key."
         },
         "authorizationUseStatus": {
-          "readOnly": true,
           "type": "string",
           "description": "The authorization use status.",
           "enum": [
@@ -1792,7 +1790,6 @@
           "description": "The peering state."
         },
         "azureASN": {
-          "readOnly": true,
           "type": "integer",
           "format": "int32",
           "description": "The Azure ASN."
@@ -1813,12 +1810,10 @@
           "description": "The secondary address prefix."
         },
         "primaryAzurePort": {
-          "readOnly": true,
           "type": "string",
           "description": "The primary port."
         },
         "secondaryAzurePort": {
-          "readOnly": true,
           "type": "string",
           "description": "The secondary port."
         },
@@ -1866,7 +1861,6 @@
           "description": "The ExpressRoute connection."
         },
         "connections": {
-          "readOnly": true,
           "type": "array",
           "items": {
             "$ref": "#/definitions/ExpressRouteCircuitConnection"
@@ -1973,7 +1967,6 @@
           "description": "The authorization key."
         },
         "circuitConnectionStatus": {
-          "readOnly": true,
           "$ref": "#/definitions/CircuitConnectionStatus",
           "description": "Express Route Circuit connection state."
         },
@@ -2169,12 +2162,10 @@
           "description": "Allow classic operations."
         },
         "circuitProvisioningState": {
-          "readOnly": true,
           "type": "string",
           "description": "The CircuitProvisioningState state of the resource."
         },
         "serviceProviderProvisioningState": {
-          "readOnly": true,
           "$ref": "#/definitions/ServiceProviderProvisioningState",
           "description": "The ServiceProviderProvisioningState state of the resource."
         },
@@ -2193,7 +2184,6 @@
           "description": "The list of peerings."
         },
         "serviceKey": {
-          "readOnly": true,
           "type": "string",
           "description": "The ServiceKey."
         },
@@ -2229,7 +2219,6 @@
           "description": "The GatewayManager Etag."
         },
         "globalReachEnabled": {
-          "readOnly": true,
           "type": "boolean",
           "description": "Flag denoting Global reach status."
         }