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Fault query method and device

A query method and fault technology, applied in the field of communication, can solve problems such as uncertain business interruption time, difficulty in logging in to equipment, inability to diagnose and restore the live network, and achieve the effect of providing flexibility and quickly restoring network services

Pending Publication Date: 2022-03-18
BEIJING HUAWEI DIGITAL TECH
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the uncertain time of service interruption, or because multiple devices in the live network belong to different operators / operation and maintenance departments, it is difficult to log in to the devices, which makes it impossible to quickly diagnose and restore the live network

Method used

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  • Fault query method and device

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Embodiment Construction

[0042] In order to enable those skilled in the art to better understand the solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described implementation Examples are only some embodiments of the present invention, but not all embodiments.

[0043] At present, in the multi-protocol label switching (MPLS) system, the label distribution protocol (label distribution protocol, LDP) and the resource reservation protocol (resource reservation protocol, RSVP) are more commonly used path establishment protocols in the MPLS system . In the actual establishment process, label switched routers (label switched routers, LSRs) perform binding according to forwarding equivalence classes (forwarding equivalence class, FEC) and labels, and notify the binding relationship to adjacent LSRs. The FEC refers t...

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Abstract

The embodiment of the invention discloses a fault query method and device, and the method specifically comprises the steps: for querying packet loss information on a certain path, a source network device on the path can generate a request message; when a first network device obtains a request message, if the first network device is a target network device, a response message is obtained according to the request message, and the response message comprises packet loss information. And the first network device sends the response message to the source network device according to the label information in the response message, so that the source network device obtains the packet loss information on each network device. And if the first network equipment is not the target network equipment, forwarding the request message until the request message is forwarded to the target network equipment. Visibly, the network device can obtain the packet loss information of each network device on the target path by sending the request message, does not need to log in each network device, does not need to depend on fault reproduction for positioning, and provides the flexibility of fault query.

Description

technical field [0001] The present application relates to the technical field of communications, and in particular to a fault query method and device. Background technique [0002] During the service forwarding process on the live network, sometimes unknown faults occur on the equipment, resulting in packet loss of the bearer service traffic and damage to the service. When service traffic packet loss occurs on the live network, it is not only necessary to restore the service as soon as possible, but also to find out the fault point and cause as soon as possible. [0003] At present, the method of fault location is usually adopted during the event, that is, the fault location depends on the repeated occurrence of fault phenomena on the live network. However, due to the uncertain time of service interruption, or because multiple devices on the live network belong to different operators / operation and maintenance departments, it is difficult to log in to the devices, which make...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L41/0677H04L47/10H04L47/32H04L47/33
CPCH04L41/0677H04L47/23H04L47/32H04L47/33
Inventor 侯云龙
Owner BEIJING HUAWEI DIGITAL TECH
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