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Hot backup method, first master device, backup device and communication system

A technology of primary equipment and standby equipment, applied in the field of communication, can solve problems such as misjudgment and waste of resources

Active Publication Date: 2017-04-26
HUAWEI TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The usual multi-machine hot backup technology can only make correct judgments on link interruption faults, but it is easy to make wrong judgments on serious link packet loss, which may lead to waste of resources

Method used

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  • Hot backup method, first master device, backup device and communication system
  • Hot backup method, first master device, backup device and communication system
  • Hot backup method, first master device, backup device and communication system

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Embodiment Construction

[0064] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, 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 embodiments It is a part of embodiments of the present invention, but not all embodiments. 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.

[0065] Hot backup is a commonly used technology in communication networks. Taking BRAS as an example to implement hot backup using the VRRP protocol, the basic process of BRAS dual-system hot backup is as follows: Figure 1A and Figure 1B shown. in Figure 1A It is a schematic diagram of BRAS dual-machine hot backup; Figure 1B It is another sc...

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Abstract

An embodiment of the invention provides a hot backup method, a first master device, a backup device and a communication system, which help to save system resources. The method comprises the following steps: the first master device obtains a first link quality level of a link between the first master device and the backup device, Xith link quality levels of links between the first master device and the other N-1 master devices, and Yth link quality levels of links between the (N-1)th master devices and the backup device; and when the sum of number of abnormal levels in the first link quality level and the Xith link quality levels is smaller than the number of abnormal levels in the Yth link quality levels, and the number of normal levels in the Xith link quality levels is larger than or equal to the number of normal levels in the Yth link quality levels, and the link quality level of the first master device is the abnormal level, the first master device carries out hot backup to the backup device, or otherwise, the first master device keeps in a master device state.

Description

technical field [0001] The embodiment of the present invention relates to the technical field of communication, and in particular to a hot backup method, a first active device, a backup device and a communication system. Background technique [0002] With the development of communication technology, more and more functions are integrated on the communication equipment in the network. The failure of communication equipment will cause the terminal equipment served by it to fail to communicate normally, and may even affect the normal operation of the entire network. Therefore, in general, each communication device is equipped with a backup channel to ensure that the communication device can still work normally when the main communication channel fails, and the network is also configured with a backup device so that the entire network can work normally when a certain device fails. [0003] Hot backup technology is a reliable protection technology in the network. When a single co...

Claims

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Application Information

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IPC IPC(8): H04L12/24H04L12/713H04L45/586
CPCH04L41/0668H04L45/22
Inventor 张耀坤牛承光
Owner HUAWEI TECH CO LTD
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