show lldp neighbors

Syntax

Description

Display learned information about Link Layer Discovery Protocol (LLDP) on all neighboring interfaces or on selected interfaces.

Options

none	Display learned LLDP information on all neighboring interfaces and devices.
interface `interface-ids`	(Optional) Display learned LLDP information on the selected interfaces or devices.

Note:

When a port with DCBX enabled begins to exchange type, length, and value (TLV) entries, optional LLDP TLVs on that port are not advertised to neighbors in order to interoperate with a wider variety of converged network adapters (CNAs). As a result, information for those ports will not be listed in the output for this command.

Required Privilege Level

view

Output Fields

Table 1 lists the output fields for the show lldp neighbors command. Output fields are listed in the approximate order in which they appear.

Table 1: show lldp neighbors Output Fields
Field Name	Field Description
Local Interface	List of local interfaces for which neighbor information is available.
Parent Interface	List of aggregated Ethernet interfaces, if any, to which the local interfaces belong.
Chassis ID	List of chassis identifiers for neighbors.
Port info	List of port information gathered from neighbors. This could be the port identifier or port description.
System name	List of system names gathered from neighbors.
LLDP Neighbor Information	Information about both the local system (the switch) and a neighbor system on the interface (appears when the interface option is used).
Local Information	Information about the local system (appears when the interface option is used).
Index	Local interface index (appears when the interface option is used).
Time to live	Number of seconds for which this information is valid (appears when the interface option is used).
Time mark	Date and timestamp of information (appears when the interface option is used).
Local Interface	Name of the local physical interface (appears when the interface option is used).
Parent Interface	Name of the aggregated Ethernet interface, if any, to which the interface belongs (appears when the interface option is used).
Local Port ID	Local interface SNMP index (appears when the interface option is used).
Ageout Count	Number of times the complete set of information advertised by the neighbor has been deleted from LLDP neighbor information maintained by the local system because the information timeliness interval has expired (appears when the interface option is used).
Neighbor Information	Information about a neighbor system on the interface (appears when the interface option is used).
Chassis type	Type of chassis identifier supplied, such as MAC address (appears when the interface option is used).
Chassis ID	Chassis identifier of the chassis type listed (appears when the interface option is used).
Port type	Type of port identifier supplied, such as locally assigned (appears when the interface option is used).
Port ID	Port identifier of the port type listed (appears when the interface option is used).
Port description	Port description (appears when the interface option is used).
System name	Name supplied by the system on the interface (appears when the interface option is used).
System Description	Description supplied by the system on the interface (appears when the interface option is used).
System capabilities	Capabilities (such as Bridge, Router, and Telephone) that are supported or enabled by the system on the interface (appears when the interface option is used).
Management Info	Details of management information: Type (such as ipv4 or ipv6), Address (such as 10.204.34.35), Port ID, Subtype, Interface Subtype, and organization identifier (OID) (appears when the interface option is used). The Interface Subtype displays: ifIndex(2)— IP address of the neighbor’s management Ethernet interface (me0) or virtual management Ethernet (VME) interface address (for a virtual chassis) is used to manage the switch. unknown(1)—Neighbor’s IP management address has been configured with set protocols lldp management-address.
Media Info	Additional details about the endpoint device appear when a device that supports LLDP-MED is attached to the interface. The specific details depend upon the capabilities of the device. Details might include Media endpoint class (such as Class 3 for communication devices such as IP phones), MED Hardware revision, MED Firmware revision, MED Software revision, MED Serial number, MED Manufacturer name, or MED Model name.
Organization Info	One or more entries listing remote information by organizationally unique identifier (OUI), Subtype, Index, and Info (appears when the interface option is used).
Age	How long the neighbor has been identified (appears when the interface option is used and NetBIOS snooping is enabled on the switch).
Local Interface	Name of the local physical interface (appears when the interface option is used and NetBIOS snooping is enabled on the switch).
Parent Interface	Name of the aggregated Ethernet interface, if any, to which the interface belongs (appears when the interface option is used and NetBIOS snooping is enabled on the switch).
Chassis ID	Chassis identifier of the chassis type listed (appears when the interface option is used and NetBIOS snooping is enabled on the switch).
Port description	Port description (appears when the interface option is used and NetBIOS snooping is enabled on the switch).
System name	NetBIOS name of the host (appears when the interface option is used and NetBIOS snooping is enabled on the switch).