show cdp neighbors
To display information about neighbors, use the show cdp neighbors privileged EXEC command.
show cdp neighbors [type number] [detail] Syntax Description type (Optional) Type of the interface connected to the neighbors about which you want information. number (Optional) Number of the interface connected to the neighbors about which you want information. detail (Optional) Displays detailed information about a neighbor (or neighbors) including network address, enabled protocols, hold time, and software version.
Command Modes
Privileged EXEC
Command History 10.3 This command was introduced.
Release Modification
Examples
The following is sample output from the show cdp neighbors command. Device ID, interface type and number, holdtime settings, capabilities, platform, and port ID information about neighbors is displayed.
Router# show cdp neighbors Capability Codes: R - Router, T - Trans Bridge, B - Source Route Bridge S - Switch, H - Host, I - IGMP, r - Repeater Device ID Local Intrfce Holdtme Capability Platform Port IDdevice1.cisco.comEth 0/1 122 T S WS-C2900 2/11device2.cisco.comEth 0/1 179 R 4500 Eth 0device3.cisco.com Eth 0/1 155 R 2500 Eth 0device4.cisco.com Eth 0/1 155 R 2509 Eth 0 The following is sample output for one neighbor from the show cdp neighbors detail command. Additional detail is shown about neighbors, including network address, enabled protocols, and software version:
Router# show cdp neighbors detail -------------------------Device ID: device2.cisco.comEntry address(es): IP address: 171.68.162.134Platform: cisco 4500, Capabilities: RouterInterface: Ethernet0/1, Port ID (outgoing port): Ethernet0Holdtime : 156 sec Version :Cisco Internetwork Operating System SoftwareIOS (tm) 4500 Software (C4500-J-M), Version 11.1(10.4), MAINTENANCE INTERIM SOFTWARECopyright (c) 1986-1997 by Cisco Systems, Inc.Compiled Mon 07-Apr-97 19:51 by dschwart Related Commands show cdp "Displays global CDP information, including timer and hold-time information." show cdp entry Displays information about a neighbor device listed in the CDP table. show cdp interface Displays information about the interfaces on which CDP is enabled. show cdp traffic Displays traffic information from the CDP table.
Command Description
