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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

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Overview of Interface Backup

Overview of Interface Backup

This section describes the definition and purpose of interface backup.

Definition

The interface backup feature enables an interface of a device to function as a backup for another interface. When an interface is faulty or bandwidth is insufficient, the interface backup function allows traffic to be switched to a backup interface. The backup interface then transmits service traffic or loads balance service traffic.

Purpose

When a router interface is faulty or bandwidth is insufficient, services will be interrupted or data will be lost. The interface backup technology allows a backup interface to transmit or load balance service traffic when the primary interface is faulty. This improves communication reliability.

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Updated: 2019-05-17

Document ID: EDOC1000174116

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