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A kind of rpl routing method and related device

A routing and unified technology, applied in the field of network communication, can solve the problem of high node buffer occupancy rate, and achieve the effect of reducing control overhead and reducing the number of transmissions

Active Publication Date: 2022-08-02
ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The purpose of this application is to provide a RPL routing method, a RPL routing system, a computer-readable storage medium and a network server, which solve the problem of high occupancy rate of the node buffer area caused by too many DAO-ACK control messages

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  • A kind of rpl routing method and related device
  • A kind of rpl routing method and related device
  • A kind of rpl routing method and related device

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Embodiment Construction

[0056] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0057] The following four kinds of control information in LIN are introduced first. The following four kinds of control messages are mainly used in the process of constructing Destination Oriented Directed Acyclic Graph (DODAG) in LLN. functions are explained in detail.

[0058] (1) DODAG Information Object (DODAG Information Object, ...

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Abstract

The present application provides an RPL routing method, including: after a root node receives a DAO message, generating a corresponding DAO-ACK message; and aggregating all DAO-ACK messages that need to pass through the same link within a preset time to obtain a total DAO-ACK message ACK message; multicast sends the total DAO-ACK message; ordinary nodes read all destination node information in the total DAO-ACK message; if the destination node information contained in the total DAO-ACK message contains its own descendant node, the destination address The field holds the addresses of the descendant nodes forwarding the total DAO‑ACK message. The present application reduces the control overhead by reducing the number of sent DAO-ACK control messages. The present application also provides an RPL routing system, a computer-readable storage medium, and a network server, which have the above beneficial effects.

Description

technical field [0001] The present application relates to the field of network communication, and in particular, to an RPL routing method and related devices. Background technique [0002] At present, the RPL routing protocol does not store and maintain the routing table in the non-storage mode, but with the expansion of the network scale, the backhaul of a large number of DAO messages will cause network congestion, reduce network throughput, and cause a large number of data packets. Accumulated on the root node, resulting in packet drops in the node buffer and forcing DAO messages to be retransmitted. The literature proposes an improved scheme. By improving the Delay DAO timer, it controls the forwarding of DAO messages and minimizes the possibility of network congestion. [0003] The improved algorithm includes two main sub-mechanisms, node congestion detection and adjustment of Delay DAO timer. The algorithm adopts two congestion detection methods: congestion factor CL ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L1/16H04L47/10H04L69/06
CPCH04L1/1607H04L1/1642H04L47/10H04L47/15H04L69/06Y02D30/50
Inventor 肖勇李鹏金鑫张乐平罗奕
Owner ELECTRIC POWER RESEARCH INSTITUTE, CHINA SOUTHERN POWER GRID CO LTD
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