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Path planning method, device and data transmission system

A path planning and path technology, applied in the field of communication, can solve the problem of a single way of planning the path of the controller

Pending Publication Date: 2021-05-18
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] This application provides a path planning method and device, and a data transmission system, which can solve the problem that the path planning method of the current controller is relatively simple. The technical solution is as follows:

Method used

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  • Path planning method, device and data transmission system
  • Path planning method, device and data transmission system
  • Path planning method, device and data transmission system

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Embodiment Construction

[0027] In order to make the purpose, technical solution and advantages of the present application clearer, the implementation manners of the present application will be further described in detail below in conjunction with the accompanying drawings.

[0028] The embodiment of this application provides a data transmission system, such as figure 1 As shown, the data transmission system may include: a controller 101 and multiple nodes 102 . Further, the data transmission system may also include a sending end ( figure 1 not shown) and the receiver ( figure 1 not shown). It should be noted that the embodiment of the present application does not limit the number of nodes 102, sending ends, and receiving ends. figure 1 The China-Israel data transmission system includes 12 nodes 102 .

[0029]For example, the controller 101 may be called a network cloud engine-Internet protocol (network cloud engine internet protocol, NCE-IP) controller, and the controller 101 may be a server or a...

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Abstract

The invention discloses a path planning method, a device and a data transmission system, and belongs to the technical field of communication. The method comprises the following steps: determining a transmission parameter condition of a to-be-planned path between a head node and a tail node of a stream; in at least one virtual path between the head node and the tail node, searching for a target virtual path whose transmission parameter satisfies a transmission parameter condition, the transmission parameter of the virtual path being a transmission parameter of a physical path corresponding to the virtual path, and each node on the virtual path being located on the corresponding physical path; and sending path planning information to the head node, wherein the path planning information is used for indicating labels and sequences of the nodes in the target virtual path. According to the method, the problem that the path planning mode of the current controller is relatively single is solved, the path planning mode is enriched, and the method is used for path planning.

Description

technical field [0001] The present application relates to the field of communication technologies, and in particular to a path planning method and device, and a data transmission system. Background technique [0002] SRv6 is a network forwarding technology applicable to Internet Protocol Version 6 (IPv6), and SR is also called segment routing. [0003] In SRv6, the controller can usually plan paths for multiple nodes based on the physical paths among the multiple nodes, and deliver the information (such as labels and order) of nodes in the planned paths to the head node among the multiple nodes. After receiving the data to be forwarded sent by the terminal, the head node will encapsulate the data to be forwarded into a data packet based on the information of the nodes in the path sent by the controller before. Wherein, the data packet includes a segment routing header (segment routing head, SRH) carrying information of nodes in the path, and a payload portion carrying the d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L12/721H04L45/02
CPCH04L45/34H04L45/302H04L45/12H04L45/42H04L45/02
Inventor 尹明亮
Owner HUAWEI TECH CO LTD