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Configuration Guide - Reliability

CloudEngine 12800 and 12800E V200R002C50

This document describes the configurations of Reliability, including BFD Configuration, VRRP Configuration, DLDP Configuration, Smart Link and Monitor Link Configuration, EFM Configuration, and CFM Configuration.
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EFM Enhancements

EFM Enhancements

EFM enhancements in compliance with EFM standards are extended EFM functions, including an association between EFM.

Association Between EFM and Interfaces

A device carrying IP services is usually dual-homed to an IP network to improve network robustness and service reliability. As shown in Figure 6-7, SwitchA is dual-homed to SwitchB and SwitchC. If the active link between SwitchA and SwitchC fails, traffic switches to the standby link between SwitchA and SwitchB, minimizing the service interruption time.

Association between EFM and EFM interfaces that connect SwitchB and SwitchC to SwitchA allows traffic to switch from the active link to the standby link if EFM detects a link fault or link quality deterioration. EFM detects faults on the link between SwitchA and SwitchC on the network shown in Figure 6-7. Association between EFM and EFM interfaces can set the status of Port1 to EFM down and trigger an active/standby link switchover, improving transmission quality and reliability.

Figure 6-7 Association between EFM and interfaces
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Updated: 2019-03-21

Document ID: EDOC1000166606

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