Link selection method and apparatus

A link selection, high-speed link technology, applied in the direction of digital transmission systems, electrical components, transmission systems, etc., can solve the problems of inability to use high-speed links, waste of link resources, fixed link allocation, etc. Resource utilization, guaranteed occupancy effect

Active Publication Date: 2009-01-07
北京紫光通信科技集团有限公司
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Problems solved by technology

[0014] However, the disadvantage of the prior art is that the link allocation is fixed
For example, in the above example, once the routing policy configuration is completed, the video service must use the high-speed link, and the general service must use the low-speed link. Even if there is no video service, that is, when the high-speed link is idle, the general service cannot use the high-speed link. , but can only use low-speed links, so high-speed link resources are not fully utilized, resulting in waste of link resources

Method used

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  • Link selection method and apparatus
  • Link selection method and apparatus
  • Link selection method and apparatus

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Embodiment Construction

[0055] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0056] The embodiment of the present invention provides a solution for link selection in a network with high-speed links and low-speed links. The basic idea is to determine the traffic priority of the traffic to be transmitted. If there is high-priority traffic on the high-speed link, determine whether there is high-priority traffic on the high-speed link. If so, determine that the low-speed link transmits traffic to be transmitted; if not, determine that the high-speed link transmits traffic to be transmitted.

[0057] In addition, when it is determined that the traffic to be transmitted is high-traffic priority traffic, it is still determined to transmit the traffic to be transmitted by a high-speed link.

[0058] It can be seen that when the network has only high-priority traffic, the traffic goes through the high-speed link; when the network has only l...

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Abstract

The invention discloses a method for selecting links and is applied to the networking with high-speed links and low-speed links. The method comprises that: the flow priority of the flow which is waiting for being transmitted is confirmed; when the flow which is waiting for being transmitted is confirmed as low priority flow, whether high priority flow exists on the high-speed links is judged, if yes, the flow which is waiting for being transmitted in the low-speed links is confirmed, if no, the flow which is waiting for being transmitted in the high-speed links is confirmed. The invention also discloses a device for selecting links. By using the method and the device of the invention, the rate for utilizing link resource is improved.

Description

technical field [0001] The invention relates to the routing technology in the communication system, in particular to a link selection method and a link selection device. Background technique [0002] With the continuous development of network technology, many enterprises have upgraded their networks and replaced the original low-speed links with high-speed links. Because the original low-speed link is an existing investment, enterprises are not willing to give up immediately, so low-speed links and high-speed links coexist. In order to make full use of these two links, link selection is currently performed according to the configured routing policy. [0003] figure 1 It is a typical networking structure in which an enterprise has both high-speed links and low-speed links in the prior art. Such as figure 1 As shown, the egress router 13 of the enterprise has two WAN egress links, one of which is a high-speed link connected with the Ethernet (Ethernet) 1 / 0 interface, and t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/56H04L29/06H04L45/125
Inventor 李蒙
Owner 北京紫光通信科技集团有限公司
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