IP network service quality assurance method and system

Abstract

The invention discloses a method for guaranteeing the service quality of an IP network. In the method, the function of selecting the transmission path on the network of the service flow requiring service quality guarantee and the function of IP packet forwarding and routing of the IP bearer network are separated, and the bearer control layer The resource manager of the bearer network is completed, and after the resource manager of the bearer network completes route selection according to the occupation status of network resources, it controls the edge router and adopts the multi-level label stack technology to realize the forwarding of service flows on the bearer network according to the path specified by the resource manager; the present invention Also disclosed is an IP network service quality assurance system. The invention has good expansibility and has little impact on the existing network.

Description

technical field [0001] The invention relates to IP network technology, in particular to an IP network service quality assurance method and system. Background technique [0002] Currently, the IP network built by telecom operators can only provide best-effort data services. With the development of broadband network users, many new telecom service demands on IP appear, and real-time services such as voice and video conferencing impose strict requirements on service quality (QoS for short). [0003] like figure 1 As shown, a complete IP network inside an operator is divided into the access layer / edge layer and the core layer. Connected to the edge router E of the IP network, the edge router E is responsible for managing users and is connected to the core network router RH. The core router RH is mainly responsible for forwarding and routing of IP packets. Due to the large scale of the IP network, for example, an operator's national network may consist of tens of thousands of...

AI Technical Summary

Problems solved by technology

At the same time, the QoS server and the policy server notify the edge routers to use the explicit routing MPLS LSP establishment technology. This mode of establishing an end-to-end LSP has poor scalability and limited network scale, and cannot adapt to the end-to-end service of a national public network. need

[0019] Because the bandwidth manager directly manages the resources and configuration information of all routers in the area, there is a problem that the topology and management are too complicated

However, the QoS server proposed by other manufacturers in the industry, such as NEC, still needs to manage a complex bearer network. The bearer network uses explicit routing technology to establish an end-to-end LSP model, which has poor scalability and limited network scale, and cannot adapt to a national public. Network end-to-end service requirements

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