Network system and method for guaranteeing multi-type service quality

A technology for business services and network systems, which is applied to network systems and fields that guarantee the quality of services for multiple types of business, and can solve problems such as the impact of high-priority business service quality, so as to improve network resource utilization, improve link weights, and ensure The effect of quality of service

CN102075444AInactive Publication Date: 2011-05-25BEIJING UNIV OF POSTS & TELECOMM
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2011-05-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a network system and a method for guaranteeing multi-type service quality. A service perception module and a pre-labeling module are arranged in a source host and used for perceiving sent service data packets and pre-labeling the grouped data packets with different semantic priorities for sending according to the perception information when a network layer is encapsulated.An edge router and a core router are provided with a multi-service agent respectively. The edge router is also provided with an acceptance controller for mapping the semantic priorities of the service data packets into network priorities and distributing the service data packets to the corresponding service agents. The homogeneous service agents in all the routers are interconnected to form virtual topologies, and each virtual topology is provided with an independent routing table for routing selection of the service data packets of different priorities on the corresponding virtual topologiesrespectively. Service routing of high priority is guaranteed, and influence on low priority services is reduced as much as possible; and the invention also provides a method for setting link weights,which distributes the network traffic to each link more uniformly and improves the throughput rate.
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Description

technical field

[0001] The present invention relates to a network system and method for guaranteeing service quality of multiple types of services. Specifically, it relates to a method of abstracting network routing nodes into multiple service agent nodes according to service types, so that service agent nodes of the same type form a virtual topology. And a network system and method for routing by using a brand-new context-aware method to calculate link weights in a virtual topology structure, link available bandwidth and link utilization rate, belonging to the Internet technology field. Background technique

[0002] The shortest path routing protocol (such as OSPF, IS-IS) is the dominant intra-domain routing protocol and is widely used in the ISP backbone network. In these routing protocols, the link weights are preset by the network administrator and usually remain unchanged during network operation. Network traffic is routed along the shortest path from source node to de...

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Embodiment Construction

[0026] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0027] see figure 2, which introduces the structural composition of the network system that guarantees the service quality of multiple types of services in the present invention. The system is provided with: a source host and a terminal host that send and receive service data packets, and an edge router and a core router that undertake data transmission and forwarding; The service data sent by the service source host is forwarded by multiple edge routers and core routers, and finally reaches the service terminal host. In order to guarantee the quality of service of multiple types of business, the source host and the two routers have been transformed.

[0028] The source host is equipped with a business perception module and a pre-marking module. ...