Existing tests pass

daphne/cli.py

@@ -148,7 +148,7 @@ class CommandLineInterface:
             default=False,
             action="store",
         )
-        self.arg_proxy_port = self.parser.add_argument(
+        self.max_requests = self.parser.add_argument(
             "--max-requests",
             dest="max_requests",
             help="The maximum number of requests a worker will process before restarting.",

daphne/server.py

@@ -57,7 +57,7 @@ class Server:
         application_close_timeout=10,
         ready_callable=None,
         server_name="Daphne",
-        max_requests=0,
+        max_requests=float('inf'),
         # Deprecated and does not work, remove in version 2.2
         ws_protocols=None,
     ):