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Configuration Guide - Reliability

S9300, S9300E, and S9300X V200R011C10

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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Disabling the MAC Swap Loopback Function

Disabling the MAC Swap Loopback Function


A loopback test causes network performance to deteriorate. If a large number of test packets are sent, bandwidth of other services is occupied. You are advised to disable the MAC swap loopback function immediately after the test is complete.


  1. Run system-view

    The system view is displayed.

  2. Run interface interface-type interface-number

    The interface view is displayed.

    MAC swap loopback tests cannot be performed on Eth-Trunk interfaces or their member interfaces.

  3. Run loopback swap-mac stop

    The MAC swap loopback function is disabled.

    The loopback swap-mac stop command is a one-time command and is not saved in the configuration file.

    A MAC swap loopback test stops when you disable the MAC swap loopback function or the loopback test times out. To perform the loopback test again, run the loopback swap-mac start command.

Updated: 2019-04-17

Document ID: EDOC1000178423

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