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Routing loop detection method and device

A loop detection and routing technology, applied in the network field, can solve the problems of low efficiency and accuracy of routing loop detection, and achieve the effects of high detection efficiency and accuracy, simple and convenient detection process, and high efficiency and accuracy.

Active Publication Date: 2020-12-15
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 routing loop detection method and device, which can solve the problem of low efficiency and accuracy of routing loop detection in related technologies

Method used

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  • Routing loop detection method and device
  • Routing loop detection method and device
  • Routing loop detection method and device

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Embodiment Construction

[0033] In order to make the purpose, technical solutions and advantages of the present application, the embodiments of the present application will be further described in connection with the accompanying drawings.

[0034] Before embodiments of the present application will be explained in detail described first embodiment to be described relates to the application scenario of the present embodiment and embodiment environment application.

[0035] First, embodiments of the application scenario according to embodiments of the present application will be described.

[0036] When the network packet transmission, routing loops is difficult to avoid, once the network routing loops, packet transmission network will enter a vicious cycle that will continue to forward packets in the network until the packets because after a lifetime of information carried by a timeout discarded.

[0037] figure 1 It is a schematic view of a routing loop in the network. like figure 1 , The network compris...

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Abstract

The application discloses a routing loop detection method and device, which belong to the technical field of networks. The method is applied to the first network device, and includes: determining at least one first timeout message received in the detection period; when it is determined that the at least one first timeout message meets the first preset condition, collecting multiple a second overtime message; obtain the destination IP address carried by each second overtime message in the plurality of second overtime messages; determine the first destination IP address, and the first destination IP address is obtained in the destination IP address destination IP address; determine the routing path from the first network device to the second network device corresponding to the first destination IP address; when it is determined that the routing path includes at least two identical IP addresses, it is determined that there is a loop in the routing path . The present application can automatically and quickly detect routing loops, the detection process is simple and convenient, without manual intervention, and the efficiency and accuracy of routing loop detection are high.

Description

Technical field [0001] The present application relates to network technologies, and particularly to a method and apparatus for detecting routing loops. Background technique [0002] When the network packet transmission, routing loops is difficult to avoid, once the network routing loops, packet transmission network will enter a vicious cycle that will continue to forward packets in the network until the packets because after a lifetime of information carried by a timeout discarded. Routing loops will not only cause huge waste of network resources, and can lead to serious consequences such as route flapping, hence the need for timely detection of a routing loop in order to be able to promptly eliminate routing loops, reduce losses. [0003] Currently, manual inspection is typically a routing loop, specifically, operation and maintenance personnel by the network after receiving the fault information reported by the traffic damage, collecting log files when a router failure occurs, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/705H04L12/741H04L12/721H04L45/18H04L45/74
CPCH04L45/18H04L45/74H04L45/70
Inventor 常静胡俊理
Owner HUAWEI TECH CO LTD
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