Detour Path Resource Management Methods for IP Service Operation

In the conventional IP network, equipment has been managed by periodical SNMP polling and periodical ping by a network management system (NMS), and traps have been used when abnormalities occur. But it is difficult to operate a service related to network state changes by such a management method because IP network services are best-effort services, so they may be affected by other multiplexed traffic. In order to solve such problems, we propose a detour path resource management method for IP networks. We discuss its advantages and how to overcome problems and verify that IP network resource management that includes detour path management is sufficient for practical use.