Displaying CDP Local Information

The CDP Local Information page displays information that is advertised by the CDP protocol about the local device.

To view the CDP local information:

  1. Click Administration > Discovery - CDP > CDP Local Information. The CDP Local Information page opens.
  2. Select a local port, and the following fields are displayed:
    • Interface--Number of the local port.
    • CDP State--Displays whether CDP is enabled or not.
    • Device ID Type--Type of the device ID advertised in the device ID TLV.
    • Device ID--Device ID advertised in the device ID TLV.
    • Address(s)--IP addresses (advertised in the device address TLV).
    • Port ID--Identifier of port advertised in the port TLV.
    • Capabilities--Capabilities advertised in the port TLV)
    • Version--Information about the software release on which the device is running.
    • Platform--Identifier of platform advertised in the platform TLV.
    • Native VLAN--The native VLAN identifier advertised in the native VLAN TLV.
    • Duplex--Whether port is half or full duplex advertised in the full/half duplex TLV.
    • Appliance ID--Type of device attached to port advertised in the appliance TLV.
    • Appliance VLAN ID--VLAN on the device used by the appliance, for instance if the appliance is an IP phone, this is the voice VLAN.
    • Extended Trust--Enabled indicates that the port is trusted, meaning that the host/server from which the packet is received is trusted to mark the packets itself. In this case, packets received on such a port are not re-marked. Disabled indicates that the port is not trusted in which case, the following field is relevant.
    • CoS for Untrusted Ports--If Extended Trust is disabled on the port, this fields displays the Layer 2 CoS value, meaning, an 802.1D/802.1p priority value. This is the COS value with which all packets received on an untrusted port are remarked by the device.
    • Request ID--Last power request ID received echoes the Request-ID field last received in a Power Requested TLV. It is 0 if no Power Requested TLV was received since the interface last transitioned to Up.
    • Power Management ID--Value incremented by 1 (or 2, to avoid 0) each time any one of the following events occur:
      • Available-Power or Management Power Level fields change value
      • A Power Requested TLV is received with a Request-ID field which is different from the last-received set (or when the first value is received)
      • The interface transitions to Down
    • Available Power--Amount of power consumed by port.
    • Management Power Level--Displays the supplier's request to the powered device for its Power Consumption TLV. The device always displays “No Preference” in this field.