LLDP Overloading

LLDP adds information as LLDP and LLDP-MED TLVs into the LLDP packets. LLDP overload occurs when the total amount of information to be included in an LLDP packet exceeds the maximum PDU size supported by an interface.

The LLDP Overloading page displays the number of bytes of LLDP/LLDP-MED information, the number of available bytes, and the overloading status of every interface.

To view LLDP overloading information:

Procedure

Step 1

Click Administration > Discovery LLDP > LLDP Overloading.

In the LLDP Overloading Table, the following information is displayed for each port:

  • Interface—Port identifier.

  • Total Bytes In-Use—Total number of bytes of LLDP information in each packet

  • Available Bytes Left—Total amount of available bytes left for other LLDP information in each packet.

  • Status—Whether TLVs are being transmitted or if they are overloaded.

Step 2

To view the overloading details for a port, select it and click Details.

This page contains the following information for each TLV sent on the port:

  • LLDP Mandatory TLVs

    • Size (Bytes)—Total mandatory TLV byte size

    • Status—If the mandatory TLV group is being transmitted, or if the TLV group was overloaded.

  • LLDP MED Capabilities

    • Size (Bytes)—Total LLDP MED capabilities packets byte size

    • Status—If the LLDP MED capabilities packets sent, or if they overloaded.

  • LLDP MED Location

    • Size (Bytes)—Total LLDP MED location packets byte size

    • Status—If the LLDP MED locations packets sent, or if they overloaded.

  • LLDP MED Network Policy

    • Size (Bytes)—Total LLDP MED network policies packets byte size

    • Status—If the LLDP MED network policies packets sent, or if they overloaded.

  • LLDP MED Extended Power via MDI

    • Size (Bytes)—Total LLDP MED extended power via MDI packets byte size.

    • Status—If the LLDP MED extended power via MDI packets sent, or if they overloaded.

  • 802.3 TLVs

    • Size (Bytes)—Total LLDP MED 802.3 TLVs packets byte size.

    • Status—If the LLDP MED 802.3 TLVs packets sent, or if they overloaded.

  • LLDP Optional TLVs

    • Size (Bytes)—Total LLDP MED optional TLVs packets byte size.

    • Status—If the LLDP MED optional TLVs packets sent, or if they overloaded.

  • LLDP MED Inventory

    • Size (Bytes)—Total LLDP MED inventory TLVs packets byte size.

    • Status—If the LLDP MED inventory packets sent, or if they overloaded.

  • Total

    • Total (Bytes)—Total number of bytes of LLDP information in each packet.

    • Available Bytes Left—Total number of available bytes left to send for additional LLDP information in each packet.