No relevant resource is found in the selected language.

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies. Read our privacy policy>Search

Reminder

To have a better experience, please upgrade your IE browser.

upgrade

CLI-based Configuration Guide - Reliability

AR100-S, AR110-S, AR120-S, AR150-S, AR160-S, AR200-S, AR1200-S, AR2200-S, and AR3200-S V200R009

Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Overview of HSB

Overview of HSB

Definition

Hot-standby backup (HSB) is a feature that improves network reliability through redundancy between two devices. After the two devices determine the master and backup roles, the master device forwards service packets and the backup device monitors status of the master device. The master device periodically sends its status information and data to be backed up to the backup device. When the master device fails, the backup device takes over the services immediately.

Purpose

As users impose higher requirements on network reliability, nonstop transmission has become a key issue, especially on ingress nodes or access nodes of important services, such as Internet access nodes of enterprises and database servers of banks. If only one device is deployed on such a service point, the network is vulnerable to service interruption caused by single-point failures, even if the device is highly reliable.

HSB was introduced to solve this problem. HSB implements service backup between two devices. Service information is backed up in real time through the HSB channel, so that the backup device can take over services without causing service interruption when the master device fails. This technology reduces risks of single-point failures and improves network reliability.

Translation
Download
Updated: 2019-05-17

Document ID: EDOC1000174116

Views: 51102

Downloads: 19

Average rating:
This Document Applies to these Products
Related Documents
Related Version
Share
Previous Next