Method and system for allocating network resources

Abstract

The invention relates to a method for allocating network resources. The method comprises the following steps: establishing a plurality of resource management channels in a central site according to the property of the network traffic, partitioning each branch site attached to the central site into a plurality of zones corresponding to a plurality of resource management channels, and performing bandwidth reservation and maximum bandwidth speed limit on the network traffic of the branch site in a zone corresponding to each resource management channel. The invention also relates to a system for allocating the network resources. The system manages the network traffics of operations in different types, levels and geographical positions via the resource management channels, and carries out bandwidth reservation and maximum bandwidth speed limit on the resource management channel based on DiffServ QoS technology, so that the network has a certain self-adaption adjusting capacity. Under the situation that congestion is caused by network traffic burst, the system avoids TCP synchronism caused by the wide difference between the bandwidths of the central site and the branch organization, increases the utilization rate of bandwidth access and maintains the normal running of network application.

Description

technical field [0001] The invention relates to telecommunication technology, in particular to a network resource allocation method and system for ensuring end-to-end service quality. Background technique [0002] The Internet is a statistical multiplexing network, and the network traffic has obvious burst characteristics. Such as figure 1 Shown is a schematic diagram of the traffic characteristics measured on the existing Internet network, and the network traffic is measured at intervals of 1 ms and 5 minutes respectively. The figure shows that the maximum flow rate collected at intervals of 1 millisecond is 2-3 times that of the maximum flow rate collected at intervals of 5 minutes, where the middle line is the flow statistics at intervals of 5 minutes, the top and bottom The line in the figure is the traffic statistics at intervals of 1 millisecond. It can be seen that the network burst traffic will be very large within a small interval. [0003] Therefore, in the case...

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Problems solved by technology

[0006] The purpose of the present invention is to propose a network resource allocation method and system to overcome the problem of branch point congestion caused by burst traffic in the IP network and the problem of network performance degradation caused by TCP applications

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