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Method and apparatus for preventing fault handling delays

A technology for dealing with delays and faults, applied in the field of network communication, which can solve problems such as fault delay, BFD session detection misjudgment, and delayed Down event reporting, so as to prevent fault processing delay, make up for detection defects, and reduce data flow loss.

Active Publication Date: 2020-12-04
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This kind of inconsistency will cause misjudgment of BFD session detection, delay the reporting of Down events, and eventually lead to delayed processing of faults

Method used

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  • Method and apparatus for preventing fault handling delays
  • Method and apparatus for preventing fault handling delays
  • Method and apparatus for preventing fault handling delays

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Embodiment Construction

[0025] In order to make the purpose, technical solution and advantages of the present application clearer, the present application will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0026] The method provided in this application can avoid the delayed reporting of Down events in the scenario where the public network path is gradually disconnected, thereby preventing the delay in fault handling caused by the delayed reporting of the Down event, and enhancing the performance of the BFD detection mechanism adapting to the scenario of gradually disconnected public network paths.

[0027] The method provided by this application is described below:

[0028] see figure 1 , figure 1 Flow chart of the method provided for this application. Such as figure 1 As shown, the process may include the following steps:

[0029] Step 101, receiving a BFD session event.

[0030] As an embodiment, the BFD session event here is, for exampl...

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Abstract

The present application provides a method and a device for preventing failure processing delay. In this application, when the number of queue elements in the equivalence class time window queue reaches the set threshold (denoted as N) within the set time window, it means that there are N BFD sessions detected in the same equivalence class set Down, it is intelligently inferred that the public network path carrying the N BFD sessions is faulty. In order to facilitate the upper layer to handle the fault in time and reduce data flow loss, this application reports the corresponding The Down event avoids the delayed reporting of the Down event in the scenario where the public network path is gradually disconnected, thereby preventing the delay in troubleshooting caused by the delayed reporting of the Down event.

Description

technical field [0001] The present application relates to network communication technology, in particular to a method and device for preventing fault processing delay. Background technique [0002] Bidirectional Forwarding Detection (BFD: Bidirectional Forwarding Detection) is a general, standardized, medium-independent and protocol-independent fast fault detection mechanism, which is used to detect the connectivity of links in the IP network and ensure that devices can quickly detect faults. Communication failure, so that measures can be taken in time to ensure the continuous operation of the business. BFD can quickly detect faults on the bidirectional forwarding link between two devices for various upper-layer protocols such as routing protocols and MPLS. BFD can implement millisecond-level fault detection. [0003] In practical applications, the same public network path, such as a public network tunnel, bears different paths (taking a pseudowire (PW) as an example), and...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/24H04L12/26H04L45/28H04L47/30H04L47/56H04L47/6275
CPCH04L41/06H04L41/0686H04L43/16H04L45/68H04L45/28H04L47/30H04L43/0811H04L41/064H04L41/0681H04L43/0817H04L47/56H04L47/6275H04L67/146
Inventor 郭道荣
Owner NEW H3C TECH CO LTD
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