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    Configuring Link Layer Discovery Protocol (LLDP) on an Access Point

    Link Layer Discovery Protocol (LLDP) is a link layer protocol used by network devices to advertise identity, capabilities, and neighbors. It also provides additional TLVs for capabilities discovery, network policy, Power over Ethernet (PoE), and inventory management.

    Link Layer Discovery Protocol-Media Endpoint Discovery (LLDP-MED) is an extension to LLDP that operates between endpoint devices such as IP phones to provide support for voice over IP (VoIP) applications. LLDP-MED endpoints determine the capabilities of a connected device and whether those capabilities are enabled.

    Tip: LLDP and LLDP-MED cannot operate simultaneously on a network. By default, access points send only LLDP packets until LLDP-MED packets are received from an endpoint device. The access point then sends out LLDP-MED packets until it receives LLDP packets.

    For information about LLDP, see Understanding LLDP and LLDP-MED.

    To configure LLDP on the access point from the LLDP tab of the Add AP process, complete the configuration described in Table 1.

    Table 1: LLDP Settings for an Access Point

    Field

    Description

    LLDP Mode
    (enabled by default)

    Link Layer Discovery Protocol (LLDP) on an access point is enabled for transmission by default, which means that access point transmits its identity, capabilities, and neighbors with LLDP. If you do not want the access point to use LLDP, disable LLDP by selecting Disable instead of transmit (TX).

    Note: You can enable both LLDP Mode and LLDP-MED Mode, but only one can operate at a time. By default, network devices send only LLDP packets until LLDP-MED packets are received from an endpoint device. The network device then sends out LLDP-MED packets until it receives LLDP packets.

    LLDP-MED Mode
    (enabled by default)

    Media Endpoint Discovery is an enhancement of LLDP that is disabled by default. To have the access point transmit its identity, capabilities, and neighbors with the LLDP-MED protocol, enable LLDP-MED Mode and complete the two configuration options for LLDP-MED.

    Note: You can enable both LLDP Mode and LLDP-MED Mode, but only one can operate at a time. By default, network devices send only LLDP packets until LLDP-MED packets are received from an endpoint device. The network device then sends out LLDP-MED packets until it receives LLDP packets.

    Power via MDI: Enable Power via Media Dependent Interface (MDI) to have the access point also convey power information, such as the type of power, power priority, and the amount of power required by the device. Information is collected on the Ethernet interface.

    Inventory: Enable Inventory to have the access point also transmit detailed inventory information to a controller. Inventory information includes hardware revision, firmware version, software version, serial number, manufacturer name, model name, and asset ID.

    Tip: You can also configure LLDP on a controller—see Configuring a Controller .

    Next, click the Radio 1 tab to configure the access point’s radio information. For directions, see Adding and Managing an Individual Access Point.

    Modified: 2017-01-29