def close(self):
		'''关闭与数据库的连接'''
		if VERBOSE:
			print 'Database connection CLOSE.'
		self.conn.close()
def get_vpp_config(self):
        is_ipv6 = True if self._nh_addr.version == 6 else False
        return self._test.vapi.ip_punt_redirect_dump(
            sw_if_index=self._rx_index, is_ipv6=is_ipv6)