Viewing CDP Statistics

The CDP Statistics page displays information regarding Cisco Discovery Protocol (CDP) frames that were sent or received from a port. CDP packets are received from devices attached to the switches interfaces, and are used for the Smartport feature. See Configuring CDP for more information.

CDP statistics for a port are only displayed if CDP is enabled globally and on the port. This is done in the CDP Properties page and the CDP Interface Settings page.

To view CDP statistics:

  1. Click Administration > Discovery - CDP > CDP Statistics. The CDP Statistics page opens.
  2. Enter the parameter.
    • Refresh Rate--Select the time period that passes before the CDP Statistics page is refreshed.

    The Attribute Counter block displays the counters for various types of packets per interface.

    • Version 1--Number of CDP version 1 packets received/transmitted.
    • Version 2--Number of CDP version 2 packets received/transmitted.
    • Total--Total number of CDP packets received/transmitted.

    The CDP Error Statistics section displays the CDP error counters.

    • Illegal Checksum--Number of packets received with illegal checksum value.
    • Other Errors--Number of packets received with errors other than illegal checksums.
    • Neighbors Over Maximum--Number of times that packet information could not be stored in cache because of lack of room.

    To clear the counters, click Clear Counters. The CDP Statistics counters are cleared.