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CX11x, CX31x, CX710 (Earlier Than V6.03), and CX91x Series Switch Modules V100R001C10 Configuration Guide 12

The documents describe the configuration of various services supported by the CX11x&CX31x&CX91x series switch modules The description covers configuration examples and function configurations.
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Configuring Uplink and Downlink Interfaces in a Monitor Link Group

Configuring Uplink and Downlink Interfaces in a Monitor Link Group

This section describes how to create a Monitor Link group, configure uplink and downlink interfaces, and enable revertive switching.


An interface cannot be added to a Monitor Link group in the following situations:
  • The interface has been added to a Smart Link group.
  • The interface has been added to another Monitor Link group.
  • A stack port

A Monitor Link group consists of at most 16 uplink interfaces and 64 downlink interfaces.


  1. Run:


    The system view is displayed.

  2. Run:

    monitor-link group group-id

    The Monitor Link group view is displayed.

    The device supports a maximum of 24 Monitor Link groups.

  3. Run:

    port interface-type interface-number { downlink [ downlink-id ] | uplink }

    An interface is configured as the uplink or downlink interface of the Monitor Link group.

    Or, run:

    smart-link group group-id uplink

    The Smart Link group is configured as the uplink of the Monitor Link group.

  4. (Optional) Run:

    timer recover-time recover-time

    The wait to restore (WTR) time is set.

    By default, revertive switching of a Monitor Link group is enabled and the default WTR time is 3 seconds.

  5. Run:


    The configuration is committed.

Checking the Configuration

  • Run the display monitor-link group { all | group-id } command to check information about a Monitor Link group.

Updated: 2019-08-09

Document ID: EDOC1000041694

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