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Method and network node for transmitting load information of a path

A technology of network nodes and load information, applied in the field of communication, can solve problems such as packet loss, reduce bandwidth consumption and avoid path congestion.

Active Publication Date: 2020-03-31
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, the path selected by the source node may be in a congested state due to excessive load, which will cause packet loss

Method used

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  • Method and network node for transmitting load information of a path
  • Method and network node for transmitting load information of a path
  • Method and network node for transmitting load information of a path

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Embodiment Construction

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0028] For ease of understanding, an example diagram of a system architecture capable of implementing the method of the embodiment of the present invention is firstly described as a whole. figure 1 The devices in the system may be hardware, or functionally divided software, or a structure of both.

[0029] Such as figure 1 As mentioned above, the network node 110 to the network node 170 may communicate through network nodes such as the network node 12...

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Abstract

The invention provides a method and a network node for transmitting load information of a path. The method includes: the network node acquires M pieces of path load information, wherein the i-th path load information is used to indicate all shortest paths passing through the i-th adjacent node of the network node among all shortest paths from the network node to the target node The total load, M≥i≥1; according to the M path load information, the network node summarizes the load of all the shortest paths from the network node to the target node through the M adjacent nodes corresponding to the M path load information into one for indicating Load metrics of all the shortest paths from the network node to the target node; the network node sends load metric information to all adjacent nodes of the network node except the M adjacent nodes. The network node and the method of the present invention can reduce the capacity requirement of the entries of the network node for storing path load information.

Description

technical field [0001] The invention relates to the communication field, in particular to a method and a network node for transmitting path load information. Background technique [0002] In a communication network, such as Internet Protocol (Internet Protocol, IP), when transmitting data from one network node (which can be called a source node) to another network node (which can be called a target node), there may be one or more path. Usually, a network node will choose to transmit a packet through a single path or an Equal Cost Multi-Path (Equal Cost Multi-Path, ECMP). [0003] However, the path selected by the source node may be in a congested state due to excessive load, which will result in packet loss. Therefore, the source node needs to obtain the load information of the path, and when selecting a path for transmitting the message, refer to the load information of the path, and select a path with a lighter load to transmit the message. [0004] The source node obta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/801H04L12/803H04L45/125H04L45/122H04L45/24
CPCH04L45/24H04L47/11H04L47/125H04L43/0894H04L43/16H04L45/125
Inventor 向海洲胡农达涂伯颜
Owner HUAWEI TECH CO LTD