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 a LLDP packet exceed 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 for additional LLDP information, and the overloading status of every interface.

To view LLDP overloading information:

  1. Click Administration > Discovery - LLDP > LLDP Overloading. The LLDP Overloading page opens.
  2. This page displays the following fields for each port:

    • Interface--Port identifier.
    • Total (Bytes)--Total number of bytes of LLDP information in each packet
    • Left to Send (Bytes)--Total number of available bytes left for additional LLDP information in each packet.
    • Status--Whether TLVs are being transmitted or if they are overloaded.
  3. To view the overloading details for a port, select it and click Details. The LLDP Overloading Details opens.
  4. This page displays 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 were sent, or if they were overloaded.
    • LLDP MED Location
      • Size (Bytes)--Total LLDP MED location packets byte size.
      • Status--If the LLDP MED locations packets were sent, or if they were overloaded.
    • LLDP MED Network Policy
      • Size (Bytes)--Total LLDP MED network policies packets byte size.
      • Status--If the LLDP MED network policies packets were sent, or if they were 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 were sent, or if they were overloaded.
    • 802.3 TLVs
      • Size (Bytes)--Total LLDP MED 802.3 TLVs packets byte size.
      • Status--If the LLDP MED 802.3 TLVs packets were sent, or if they were overloaded.
    • LLDP Optional TLVs
      • Size (Bytes)--Total LLDP MED optional TLVs packets byte size.
      • Status--If the LLDP MED optional TLVs packets were sent, or if they were overloaded.
    • LLDP MED Inventory
      • Size (Bytes)--Total LLDP MED inventory TLVs packets byte size.
      • Status--If the LLDP MED inventory packets were sent, or if they were overloaded.
    • Total (Bytes)--Total number of bytes of LLDP information in each packet
    • Left to Send (Bytes)--Total number of available bytes left for additional LLDP information in each packet.