Technical Documentation

show lldp neighbors

Syntax

show lldp neighbors<interface interface>

Release Information

Command introduced in JUNOS Release 9.0 for EX Series switches.

Description

Display the information about neighboring devices learned by the switch by using the Link Layer Discovery Protocol (LLDP).

Options

none

Display LLDP neighbor information for all interfaces.

interface interface

(Optional) Display LLDP neighbor information for a selected interface.

Required Privilege Level

view

List of Sample Output

show lldp neighbors
show lldp neighbors interface xe-3/0/4.0

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 mark

Date and timestamp of information (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).

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 the management information: Address 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).

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).

Sample Output

show lldp neighbors

user@switch> show lldp neighbors
Local Interface   Parent Interface   Chassis Id          Port info    System Name
xe-3/0/4.0        ae31.0             b0:c6:9a:63:80:40   xe-0/0/0.0   newyork31
xe-3/0/5.0        ae31.0             b0:c6:9a:63:80:40   xe-0/0/1.0   newyork31
xe-3/0/6.0        ae31.0             b0:c6:9a:63:80:40   xe-0/0/2.0   newyork31
xe-3/0/7.0        ae31.0             b0:c6:9a:63:80:40   xe-0/0/3.0   newyork31
xe-3/0/0.0        ae31.0             b0:c6:9a:63:80:40   xe-0/1/0.0   newyork31
xe-3/0/1.0        ae31.0             b0:c6:9a:63:80:40   xe-0/1/1.0   newyork31
xe-3/0/2.0        ae31.0             b0:c6:9a:63:80:40   xe-0/1/2.0   newyork31
xe-3/0/3.0        ae31.0             b0:c6:9a:63:80:40   xe-0/1/3.0   newyork31

show lldp neighbors interface xe-3/0/4.0

user@switch>show lldp neighbors interface xe-3/0/4.0
LLDP Neighbor Information:
Local Information:
Index: 488 Time to live: 120 Time mark: Tue Mar 30 23:33:28 2010 Age: 30 secs
Local Interface    : xe-3/0/4.0
Parent Interface   : ae31.0
Local Port ID      : 577
Ageout Count       : 10

Neighbour Information:
Chassis type       : Mac address
Chassis ID         : b0:c6:9a:63:80:40
Port type          : Locally assigned
Port ID            : 503
Port description   : xe-0/0/0.0
System name        : newyork31

System Description : Juniper Networks, Inc. ex4500-40f , version 10.2I0 Build date: 2010-03-26 00:17:34 UTC

System capabilities
        Supported  : Bridge Router
        Enabled    : Bridge Router

Management Info
        Type              : IPv4
        Address           : 10.10.200.84
        Port ID           : 34
        Subtype           : 1
        Interface Subtype : 2
        OID               : 1.3.6.1.2.1.31.1.1.1.1.34

Organization Info
       OUI      : 0.18.15
       Subtype  : 1
       Index    : 1
       Info     : 0000010000

Organization Info
       OUI      : 0.18.15
       Subtype  : 3
       Index    : 2
       Info     : 0300000207

Organization Info
       OUI      : 0.18.15
       Subtype  : 4
       Index    : 3
       Info     : 05EA

Organization Info
       OUI      : 0.18.15
       Subtype  : 1
       Index    : 4
       Info     : 444530323039343530333438

Organization Info
       OUI      : 0.18.15
       Subtype  : 3
       Index    : 5
       Info     : 00640476313030

Organization Info
       OUI      : 0.18.15
       Subtype  : 3
       Index    : 6
       Info     : 00650476313031

Organization Info
       OUI      : 0.18.15
       Subtype  : 3
       Index    : 7
       Info     : 0FA0057634303030

Published: 2010-05-13