About Configuring CDP

The Cisco Discovery Protocol (CDP) is an advertisement protocol used by Cisco devices to advertise itself to other Cisco devices in the same network. CDP runs on the data link layer and is independent of Layer 3 protocols. Cisco devices that receive the CDP packets cache the information to make it is accessible through the CLI and SNMP. CDP is supported on the management Ethernet interface on the supervisor module and the Gigabit Ethernet interface on the IPS module. The CDP daemon is restartable and switchable. The running and startup configurations are available across restarts and switchovers.

To globally disable CDP using Fabric Manager, follow these steps:

  1. Select a switch in the Logical Domains pane.
  2. Expand Switches, expand Interfaces, expand Management, and then select CDP in the Physical Attributes pane.
  3. Deselect the Enable check box.
  4. Click the Apply Changes icon.

To disable CDP using Device Manager, follow these steps:

  1. Click IP > CDP.
  2. Deselect the Enable check box.
  3. Click the Apply Changes icon.

To globally configure the message interval for the CDP protocol using Device Manager, follow these steps:

  1. Click IP > CDP.
  2. Set the message interval time in seconds (5-254).
  3. Click the Apply icon.

To globally configure the hold time advertised in CDP packets using Device Manager, follow these steps:

  1. Click IP > CDP.
  2. Set the hold time in seconds (10-255).
  3. Click Apply.


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