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loopback function when the loopback test begins and disable it immediately after the loopback
test is complete.
Procedure
Step 1
Run:
system-view
The system view is displayed.
Step 2
Run:
interface
interface-type
interface-number
The interface view is displayed.
MAC swap loopback tests cannot be performed on an Eth-Trunk interface or its member
interfaces.
Step 3
Run:
loopback swap-mac start
The MAC swap loopback function is enabled.
This is a one-time command and is not saved in the configuration file.
To ensure service provisioning on the interface, run the
loopback swap-mac stop
command to
disable the MAC swap loopback function immediately after the loopback test is complete.
----End
9.4.4 Disabling the MAC Swap Loopback Function
This section describes how to disable the MAC swap loopback function.
Context
A loopback test deteriorates network performance. If a large number of test packets are sent,
bandwidth of other services is occupied. Therefore, disable the MAC swap loopback function
immediately after the loopback test is complete.
Procedure
Step 1
Run:
system-view
The system view is displayed.
Step 2
Run:
interface
interface-type
interface-number
The interface view is displayed.
MAC swap loopback tests cannot be performed on an Eth-Trunk interface or its member
interfaces.
Step 3
Run:
loopback swap-mac stop
The MAC swap loopback function is disabled.
Quidway S3700 Series Ethernet Switches
Configuration Guide - Reliability
9 MAC Swap Loopback Configuration
Issue 01 (2011-10-26)
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
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