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Configuration Guide - Reliability

S1720, S2700, S5700, and S6720 V200R010C00

This document describes the configuration of BFD, DLDP, VRRP, SmartLink, CFM, EFM, Y.1731 and MAC swap loopback to ensure reliability on the device.

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Switching IEEE 802.1ag Versions

Switching IEEE 802.1ag Versions


By default, IEEE 802.1ag Standard 802.1ag-2007 is enabled on a device. Perform the following operations on each device where IEEE Draft 7 needs to be used.


  1. Run:


    The system view is displayed.

  2. Run:

    cfm version { draft7 | standard }

    The IEEE 802.1ag version is switched.

    By default, IEEE Standard 802.1ag-2007 is enabled on a device.


    All the devices in an MA must be enabled with either IEEE 802.1ag Draft 7 or IEEE Standard 802.1ag-2007. Otherwise, these devices cannot exchange CFM packets with each other.

Updated: 2019-12-28

Document ID: EDOC1000141941

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