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


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


CLI-based Configuration Guide - Reliability

AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R010

This document provides guidance for configuring reliability services, including interface backup, BFD, VRRP, and EFM.

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).
Backup Modes

Backup Modes

The device provides the HSB solution in active/standby mode.

Active/Standby Mode (Using VRRP Hot Standby)

As shown in Figure 5-1, RouterA and RouterB form a VRRP group. RouterA is the master device and RouterB is the backup device. When RouterA is working normally, it processes all services and transmits session information to RouterB through the HSB channel. RouterB does not process services and only backs up session information.

Figure 5-1  HSB in active/standby mode (master device is working normally)

When RouterA fails, RouterB starts to process services, as shown in Figure 5-2. Because session information is backed up on RouterB, new sessions can be set up without interrupting the current session. This improves network reliability.

Figure 5-2  HSB in active/standby mode (master device fails)

When the original master device (RouterA) recovers, it becomes the master in preemption mode. In non-preemption mode, RouterA retains in Backup state.

Updated: 2019-08-12

Document ID: EDOC1100034076

Views: 65247

Downloads: 114

Average rating:
This Document Applies to these Products

Related Version

Related Documents

Previous Next