diff --git a/src/azure-cli-core/azure/cli/core/commands/parameters.py b/src/azure-cli-core/azure/cli/core/commands/parameters.py
index 710109a56d2..976377d5583 100644
--- a/src/azure-cli-core/azure/cli/core/commands/parameters.py
+++ b/src/azure-cli-core/azure/cli/core/commands/parameters.py
@@ -114,6 +114,20 @@ def get_resource_groups(cli_ctx):
     return list(rcf.resource_groups.list())
 
 
+def get_json_query_type(query='id'):
+    def json_query_type(string):
+        import collections
+        import json
+        import jmespath
+        from jmespath.exceptions import JMESPathError
+        try:
+            result = jmespath.search(query, json.loads(string), jmespath.Options(collections.OrderedDict))
+            return result
+        except (json.JSONDecodeError, JMESPathError):
+            return string
+    return json_query_type
+
+
 @Completer
 def get_resource_group_completion_list(cmd, prefix, namespace, **kwargs):  # pylint: disable=unused-argument
     result = get_resource_groups(cmd.cli_ctx)
diff --git a/src/azure-cli/azure/cli/command_modules/storage/_params.py b/src/azure-cli/azure/cli/command_modules/storage/_params.py
index 7722445ba82..cc83c4080af 100644
--- a/src/azure-cli/azure/cli/command_modules/storage/_params.py
+++ b/src/azure-cli/azure/cli/command_modules/storage/_params.py
@@ -6,7 +6,7 @@
 from azure.cli.core.profiles import ResourceType
 from azure.cli.core.commands.validators import get_default_location_from_resource_group
 from azure.cli.core.commands.parameters import (tags_type, file_type, get_location_type, get_enum_type,
-                                                get_three_state_flag)
+                                                get_three_state_flag, get_json_query_type)
 
 from ._validators import (get_datetime_type, validate_metadata, get_permission_validator, get_permission_help_string,
                           resource_type_type, services_type, validate_entity, validate_select, validate_blob_type,
@@ -329,7 +329,8 @@ def load_arguments(self, _):  # pylint: disable=too-many-locals, too-many-statem
         from ._validators import validate_subnet
         c.argument('account_name', acct_name_type, id_part=None)
         c.argument('ip_address', help='IPv4 address or CIDR range.')
-        c.argument('subnet', help='Name or ID of subnet. If name is supplied, `--vnet-name` must be supplied.')
+        c.argument('subnet', type=get_json_query_type(),
+                   help='Name or ID of subnet. If name is supplied, `--vnet-name` must be supplied.')
         c.argument('vnet_name', help='Name of a virtual network.', validator=validate_subnet)
         c.argument('action', help='The action of virtual network rule.')