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Method and system for providing service quality tactics for various virtual special network

A quality of service strategy and virtual private network technology, applied in the transmission system, digital transmission system, network interconnection, etc., can solve problems such as preemption, high-priority VPN users cannot get reliable network services, and data transmission delay increases. Achieve the effect of solving the competition of bandwidth and avoiding the loss of user resources

Active Publication Date: 2011-10-26
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the case of limited network resources, it is bound to cause high-priority users' VPN bandwidth and other network resources to be preempted, data transmission delays increase or even packet loss, etc. Network services, providing differentiated services for different VPN users to ensure that they receive stable and reliable services is increasingly urgent

Method used

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  • Method and system for providing service quality tactics for various virtual special network
  • Method and system for providing service quality tactics for various virtual special network
  • Method and system for providing service quality tactics for various virtual special network

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Embodiment Construction

[0043] The present invention provides a specific method for providing a quality of service strategy based on a 3-layer virtual private network. In order to make the purpose, technical solutions and advantages of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples.

[0044]In order to solve the problem based on the 3-layer virtual private network VPN user's lack of providing effective QoS policy, the present invention adopts on the basis of existing 3-layer VPN and QoS technology, through the RD (routing distinguisher) attribute and QoS of VPN The way of establishing mapping between policies provides QoS policies for different VPN users, thereby solving the competition of VPN for bandwidth and providing reliable services for users. The core idea is: this invention is applied to a typical network environment of Layer 3 VPN According to the RD attribute of the VPN, QoS p...

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Abstract

The invention provides a method and a system for providing service quality policies for different virtual private networks, which are applied in the router technical field. The method comprises the following steps that a mapping relationship between a route specifier attribute and a service quality policy of a virtual privacy network VPN is established; and a data packet route transmitted in the virtual privacy network is matched by utilization of the mapping relationship and the service quality policy is implemented according to service quality configuration information. The invention also provides the system for providing the service quality policies for the different virtual private networks, which solves bandwidth competition of the VPN, provides reliable services for high-priority VPN users, avoids loss of user resources due to network congestion and so on, does not require large-scale code modification on modules related to the VPN and the service quality QoS, and does not require additional hardware investment.

Description

technical field [0001] The invention relates to the technical field of routers in communication networks, in particular to a method and system for providing quality of service (QoS) policies based on a layer-3 virtual private network (VPN). Background technique [0002] The development direction of today's network technology is to provide low-latency and reliable services for user services in a high-speed and high-throughput network environment. The traditional IP forwarding network performs a routing table lookup based on IPv4 addresses at each routing site. During the forwarding process, the routing site There is a process of reading the header field of the IP data packet, which causes a large delay to the network traffic. At the same time, the IP data packet is based on the "best effort" service model, but the "best effort" service model is only a single service model, which is also the simplest The service model does not provide any QOS guarantee, and cannot provide reli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/56H04L12/46H04L12/725H04L12/851
Inventor 肖卓吴晶谢微伏朝晖
Owner ZTE CORP
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