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Method for preventing keepalive virtual IP from being lost

A state and configuration file technology, applied in digital transmission systems, electrical components, transmission systems, etc., can solve the problems of high-availability systems that cannot provide external services, virtual IP loss, etc., to improve network robustness and stability, and ensure network security. uninterrupted effect

Active Publication Date: 2021-12-03
成都高新愿景数字科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a method for preventing the loss of the keepalive virtual IP, which solves the problem that the existing master virtual IP is lost due to instantaneous network jitter or mistakenly deleted, then the entire high-availability system will not be able to Issues with providing external services

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  • Method for preventing keepalive virtual IP from being lost
  • Method for preventing keepalive virtual IP from being lost

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Embodiment Construction

[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Therefore, the following detailed description of the embodiments of the application provided in conjunction with the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in ...

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Abstract

The invention relates to a method for preventing a keepalive virtual IP from being lost, and relates to the technical field of network address access, the method comprises the following steps: S1, judging whether a notifymaster parameter state in a keepalive configuration file is master or not; S2, if the state is master, detecting whether a virtual IP (Internet Protocol) exists or not; S3, if the virtual IP does not exist, automatically filling the virtual IP through a periodic task; and S4, continuing to carry out external service through normal switching among the plurality of keepalived. The invention has the advantages that by adding a virtual IP detection mechanism of the master, the lost virtual IP is filled up in time, it is guaranteed that the network of the keepalived high-availability system is uninterrupted, and the network robustness and stability of the keepalived high-availability system can be improved.

Description

technical field [0001] The invention relates to the technical field of network address access, in particular to a method for preventing the loss of keepalive virtual IP. Background technique [0002] Keepalived is a lightweight high-availability solution for Linux. It introduces vrrp (Virtual Routing Redundancy Protocol) to solve the single point of failure problem and ensure the uninterrupted nature of the network. Vrrp is a protocol in active / standby mode, which can virtualize two or more devices into one, and this device provides various services in the network to the outside world. Vrrp members elect a master through priority and network card IP address, and the role of devices other than master is backup. The master has a virtual IP and provides external services through this IP, and periodically sends vrrp multicast packets, and the backup device monitors the multicast packets to confirm whether the master is alive. If the backup device does not receive the vrrp mes...

Claims

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Application Information

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IPC IPC(8): H04L29/12H04L12/24H04L12/703H04L12/707H04L45/24H04L45/28
CPCH04L41/0886H04L41/0893H04L45/28H04L45/22H04L61/5046Y02D30/50
Inventor 高浩岚贺照峰孙蓉燕王志国
Owner 成都高新愿景数字科技有限公司