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CLI-based Configuration Guide - Network Management and Monitoring

AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R009

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(Optional) Configuring LLDP Packet Authentication on an Interface

(Optional) Configuring LLDP Packet Authentication on an Interface


To ensure security of LLDP interfaces, configure LLDP packet authentication on these interfaces. The interfaces can be connected only when the password in LLDP packets sent from the peer end is the same as that configured on these interfaces.


  1. Run system-view

    The system view is displayed.

  2. Run lldp enable

    LLDP is enabled globally.

    By default, LLDP is disabled globally.

  3. Run interface interface-type interface-number

    The interface view is displayed.

  4. Run lldp tlv-enable private-tlv authentication

    LLDP packet authentication is enabled.

    By default, LLDP packet authentication is disabled.

Updated: 2019-05-17

Document ID: EDOC1000174072

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