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Overlay network-based route selection method and system

A network and routing technology, applied in the field of communication, can solve the problem of not comprehensively considering data transmission reliability, link throughput and link delay guarantee, etc., to improve the end-to-end QoS service problem, improve transmission efficiency, operation strong effect

Inactive Publication Date: 2012-10-17
NAT UNIV OF DEFENSE TECH
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a routing selection method and system based on a cascaded network to solve the problem that the existing routing method based on a cascaded network does not comprehensively consider the reliability of data transmission, link throughput, and link delay guarantees.

Method used

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  • Overlay network-based route selection method and system

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Embodiment Construction

[0019] figure 1 It is a flow chart of Embodiment 1 of the cascaded network-based routing method of the present invention, as shown in figure 1 As shown, this embodiment specifically includes the following steps:

[0020] Step 100, after receiving the service request sent by the SC, any one of the multiple stacked nodes forwards the service request to other stacked nodes, and the service request carries the IP address of the SC and the IP address of the DC requesting communication;

[0021] The routing selection method of the present invention is realized based on the cascading network technology. Specifically, in the present invention, considering factors such as data transmission reliability, link throughput and link delay guarantee, a QoS adaptive stacked network system (Qos -Adaptive Overlay Network, referred to as QAON). The QAON system is composed of a group of interconnected cascaded nodes, and the cascaded nodes have the function of selecting the shortest-delay route...

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Abstract

The invention provides an overlay network-based route selection method and a system. The method comprises the following steps: after receiving a service request sent by a data source end (SC), any overlap node of the overlay network forwards the service request to other overlay nodes; each overlay node measures a first delay time value from the overlay node and a destination end (DC), and sends the first delay time value to the SC; the SC measures each second delay time value from the SC to each overlay node respectively, and calculates each total delay time value from the SC to the DC via each overlay node respectively according to each second delay time value and each first delay time value; and the SC selects the overlay node with the smallest total delay time value as current data forwarding node, and selects other overlay nodes with the smallest total delay time values and meeting transport delay constraint as backup data forwarding nodes. By adopting the overlay network based route selection method and system, the data transmission efficiency is effectively improved, the network throughput is increased, and the data transmission reliability is ensured.

Description

technical field [0001] The invention relates to data forwarding technology, in particular to a cascaded network-based routing selection method and system, and belongs to the field of communication technology. Background technique [0002] With the rapid development of the Internet, many applications that have high requirements for the quality of service (QoS) have appeared in people's lives, such as online audio / video on demand and live broadcast, online games, Internet TV, real-time video Meetings, etc. These real-time services require network service providers to provide certain QoS guarantees to ensure a certain transmission bandwidth and ensure that the end-to-end delay is not too large. [0003] However, limited by the original design principles and network architecture of the network, it has always been a difficult problem for the Internet to provide QoS-guaranteed routing for multimedia applications. At present, the routing system of the Internet supports routing sel...

Claims

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Application Information

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IPC IPC(8): H04L12/56H04L29/06H04L29/12H04L45/121
Inventor 彭伟卢泽新王宝生胡晓峰赵锋王小峰黄杰陶静戴斌吕保平
Owner NAT UNIV OF DEFENSE TECH
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