CDP Neighbor

Use the CDP Neighbors page to view status information about neighboring devices that were discovered by the Cisco Discovery Protocol (if enabled). This information may be useful for troubleshooting.

The information on this page is automatically refreshed at 15-second intervals. If CDP is disabled, a message appears at the top of the page and the list is empty. To enable CDP, see CDP Discovery, page 364.

Field	Description
Device ID	The host name of the neighboring device.
Local Port	The outgoing port that the security appliance is using for this connection.
Duration	The time interval (in seconds) that the security appliance will keep CDP information from a neighboring device.
Function	The neighbor’s device type: R - Router, T - Trans Bridge, B - Source Route Bridge, S - Switch, H - Host, I - IGMP, or r - repeater.
Platform	The model number of the neighboring device.
Interface ID	The interface that the neighboring device is using for the connection.
IP Address	The IP address of the neighboring device.
Duplex	The duplex mode of the connection.
Voice VLAN	The Voice VLAN ID of the neighboring device.