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Method for selecting repeat path in repeat control separating system

A forwarding path and forwarding unit technology, applied in store-and-forward switching systems, transmission systems, digital transmission systems, etc., can solve the problems of reducing forwarding efficiency, unable to select forwarding paths, etc., and achieve the effect of improving forwarding efficiency

Inactive Publication Date: 2008-11-12
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when the topology between the forwarding units is relatively complex, resulting in multiple forwarding paths to choose from between the forwarding units, it is impossible to select a better forwarding path in the prior art, which reduces the forwarding efficiency

Method used

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  • Method for selecting repeat path in repeat control separating system
  • Method for selecting repeat path in repeat control separating system
  • Method for selecting repeat path in repeat control separating system

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Embodiment Construction

[0032] In order to express the objectives, technical solutions and advantages of the present invention more clearly, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0033] The main idea of ​​the present invention is: after the forwarding unit performs neighbor discovery and reports the neighbor table, the control unit first calculates the topology structure of the entire forwarding unit according to the neighbor table reported by the forwarding unit, and when there are more than When there is one available forwarding path, the control unit calculates the data path value of each available forwarding path in the more than one available forwarding paths, and uses the forwarding path with the smallest data path value to perform data forwarding between forwarding units , so as to select an optimal forwarding path, thereby improving the forwarding efficiency of forwarding data between forwarding u...

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Abstract

This invention discloses a method for selecting transferred paths in a Foe CES system with a transferring unit and a control unit, the method includes: executing neighbor discovery among transfer units to generate a neighbor list of the unit and transmitting the list to a control unit, which gets the topology of the entire transfer unit based on the neighbor list to determine the usable transfer paths based on the topology and when the path is more than one, the control unit computes the data channel value of each transfer path to use the path with the minimum data path value to realize data transfer.

Description

technical field [0001] The present invention relates to Forwarding Control Separation (ForCES) technology, and more particularly, the present invention relates to a method for selecting a forwarding path in a ForCES system. Background technique [0002] With the development of Internet technology, routers increasingly need to realize the separation of hardware and software, and hardware and software need to formulate their own relevant standards. The separation of hardware and software is called the separation of forwarding and control, in which the repeater is mainly composed of hardware, and the controller is mainly composed of software, and the two are connected by ForCES technology. [0003] The goal of ForCES technology is to define a framework for standardizing the information exchange between the control plane and the forwarding plane. ForCES technology enables the control plane and the forwarding plane to make rapid technological progress on the premise of maintaini...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/54H04L12/721
Inventor 郭小艺
Owner HUAWEI TECH CO LTD