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Method and system for adjusting Internet protocol (IP) network flow

A traffic adjustment and IP network technology, applied in transmission systems, digital transmission systems, data exchange networks, etc., can solve problems such as link congestion in local areas, and it is difficult to calculate the metric value adjustment scheme for traffic adjustment methods, so as to reduce The effect of adjusting the difficulty

Active Publication Date: 2011-06-08
CHINA TELECOM CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Under a flat network architecture, it is difficult to calculate a suitable metric value adjustment scheme with such an extensive traffic adjustment method
[0009] Considering the above drawbacks of the traditional traffic adjustment method, the present invention proposes a refined traffic adjustment method and an implementation system to solve the local area link congestion problem in the IP network, especially in the case of a flat network

Method used

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  • Method and system for adjusting Internet protocol (IP) network flow
  • Method and system for adjusting Internet protocol (IP) network flow
  • Method and system for adjusting Internet protocol (IP) network flow

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Embodiment Construction

[0031] The invention includes a method and a system for finely adjusting IP network traffic. The feasibility and effectiveness of the present invention will be illustrated below with a flow adjustment process under a simple network. consider figure 1 The network topology in:

[0032] figure 1 , the shared link E is congested. The traditional way of traffic adjustment is to directly increase the metric value of E, for example, from 5 to 10, so that 50% of the traffic on link E, 50% of the traffic between nodes 1-6 will be diverted to the adjacent link, and the E link The utilization rate of the road will decrease. The main problem of this method is that the increase of the Metric value of the E link will often cause the utilization of other links on the node 5 in the figure to change at the same time (congestion or flow is zero, such as after adjustment figure 1 The utilization rate of link D will drop to 0, and the utilization rate of link G will increase at the same time...

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Abstract

The invention provides a method and system for adjusting Internet protocol (IP) network flow. The method comprises the following steps of: calculating flow components of each link according to the current network topological data and the flow direction of flow between service nodes, wherein the flow components of each link refer to the types of flows transmitted among service end pairs on each link and the link utilization ratio of the flow between each end pair in the bandwidth of the link; calculating a link sharing degree, wherein the link sharing degree refers to the number of flows transmitted among the end pairs on each link; determining links required to be adjusted according to the current link utilization ratio and a target link utilization ratio; and adjusting the metric value of each link according to the link utilization ratio or a sharing degree value and transmitting the adjusted metric value to the current network topological data. In the method and the system, adjusting pertinence and adjusting fineness are very high.

Description

technical field [0001] The invention belongs to the fields of IP network traffic engineering and traffic control, and relates to a method and system for controlling and adjusting traffic in an IP network, especially a flat IP network. Background technique [0002] Traditional IP networks generally adopt a layered (core layer, aggregation layer, and access layer) architecture. This architecture has good scalability on the one hand, and facilitates traffic flow control and control on the other. By dividing the nodes in the IGP domain into several areas and large areas, and planning a reasonable Metric value on this basis, the traffic can be regionalized as much as possible: just as the traffic of a large area only forwards traffic through the core of this large area, the same area The traffic is only forwarded through the super core in the area, and only the traffic across the area will cross the super core. [0003] Considering the statistical multiplexing characteristics of...

Claims

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Application Information

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IPC IPC(8): H04L29/06H04L12/56H04L12/801
Inventor 王爱俊王茜
Owner CHINA TELECOM CORP LTD
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