Link Layer Discovery Bridge Property

Link Layer Discovery Protocol (LLDP) allows Ethernet network devices to advertise details about themselves, such as device configuration, capabilities and identification, to directly connected devices on the network that are also using LLDP.

LLDP is a “one hop” protocol; LLDP information can only be sent to and received by devices that are directly connected to each other by the same link. Neighboring devices are directly connected to each other.

The following sections describe how to view the properties of an Optical Line Terminal (OLT) configured to support LLDP.

Configuration

Use the following procedure to view the LLDP bridge property configuration.

  1. Logon to EMS and in the Network common tree, right-click on the target OLT and select Protocol on the dropdown list, then select Link Layer Discovery  on the dropdown list.

  2. The Link Layer Discovery dialog is displayed, with the Configuration tab attributes.
  3. The Link Layer Discovery Configuration dialog displays the current configuration for the LLDP instance. The attributes can be changed through this dialog.

  4. Refer to the following table for the options applicable to the displayed attributes.
     

    Attribute

    Description

    Notes

    LLDP Configuration

    Admin State

    Indicates whether the LLDP agent is enabled.

    Values are: TxRx, Tx, Rx. Default is TxRx.

    Tx

    TX Interval(s)

    The time interval, in seconds, between which the switch transmits LLDPDUs on behalf of the LLDP agent.

    The range is 1 to 3600 seconds. Default is 30 seconds

    TX Hold Multiplier

    The current multiplier on the Tx Interval parameter.

    The range is 1 to 100.

    Default is 4

    TX Hold Time(s)

    Time-To-Live (TTL) value expressed as a old Multiplier.

    TxInterval * TxHoldMultiplier

    TX Delay(s)

    The time, in seconds, that the switch waits between transmitting successive LLDPDUs initiated by value or status changes in the local LLDP MIB.

    The range is 1 to 8192 seconds. Default is 2 seconds.

    TX Re-init Delay(s)

    The time, in seconds, that begins the LLDP re-initialization process

    The range is 1 through 10. Default is 2 seconds.

    Rx

    RX Notification Interval(s)

    Sets the amount of time, in seconds, between LLDP notifications.

    The range is 5 through 3600. Default is 5 seconds.
  5. Change, as required, the LLDP values, then click the Apply button.
  6. To view the changes, click the refresh button.
  7. Click the Close button to close the LLDP Bridge Property dialog.

Statistics

Use the following procedure to view the LLDP bridge property statistics.

  1. Logon to EMS and in the Network common tree, right-click on the target OLT and select Protocol on the dropdown list, then select Link Layer Discovery on the dropdown list.

  2. In the LLDP Bridge Property dialog, click the Statistics tab. The LLDP Bridge Property Statistics screen is displayed.

  3. The LLDP Bridge Property Statistics screen displays the current statistics.
  4. Click the Refresh button o display the current instance.
  5. Click the Close button to dismiss the LLDP Bridge Property dialog.