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Enable LLDP on a CPE Interface

To discover a switch or access point (AP) connected to an SRX Series Customer Premise Equipment (CPE), enable Link Layer Discovery Protocol (LLDP) on the CPE interface used.

LLDP allows networked devices to advertise capabilities, identity, and other information onto a LAN. LLDP-capable devices transmit information in type, length, and value (TLV) messages to neighbor devices.

If you are using a LAG or a reth interface to connect to a switch or an AP, you can enable LLDP on the interface when you create the interface (see Create LAG Interface and Create a RETH Interface)

To enable LLDP on a CPE interface:

  1. Click Resources > Devices.

    The Devices page is displayed.

  2. Select a CPE from the list of devices displayed and click More > Manage Switch Connectivity.

    The Manage Switch Connectivity page is displayed.

    Alternatively, click device-name from the Device Name column to open the Device Details page and then click Configuration (tab) > Interfaces (tab).

    You can also access the Device Details page from the Site Management page (Resources > Site Management site-name > DEVICES (tab) >device-name).


    You can enable LLDP on a device only if the Management Status of the selected device is Provisioned.

  3. Select the interface from the Interfaces section and click the edit (pencil) icon.

    The Edit interface-name page is displayed.

  4. Click the toggle button against the LLDP field to enable LLDP.
  5. Click OK.