This method registers a new BMP (BGP monitoring Protocol)
        server. The BGP speaker starts to send BMP messages to the
        server. Currently, only one BMP server can be registered.

        ``address`` specifies the IP address of a BMP server.

        ``port`` specifies the listen port number of a BMP server.

def bmp_server_add(self, address, port):
        """This method registers a new BMP (BGP monitoring Protocol)
        server. The BGP speaker starts to send BMP messages to the
        server. Currently, only one BMP server can be registered.

        ``address`` specifies the IP address of a BMP server.

        ``port`` specifies the listen port number of a BMP server.
        """

        func_name = 'bmp.start'
        param = {
            'host': address,
            'port': port,
        }

        call(func_name, **param)