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    show lldp neighbors

    Syntax

    show lldp neighbors<interface interface>

    Release Information

    Command introduced in Junos OS 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

     

    Related Documentation

     

    List of Sample Output

    show lldp neighbors
    show lldp neighbors interface ge-0/0/2
    show lldp neighbors interface ge-0/0/0.0 (for a VoIP AvayaTelephone with LLDP-MED Support)
    show lldp neighbors interface ge-0/0/5.0 (with NetBIOS Snooping Enabled on the Switch)

    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, 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).

    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 ge-0/0/2

    user@switch> show lldp neighbors interface ge-0/0/2 
    LLLDP Neighbor Information:
Local Information:
Index: 1 Time to live: 240 Time mark: Wed Dec  1 10:23:24 2010 Age: 29 secs
Local Interface    : ge-0/0/2.0
Parent Interface   : -
Local Port ID      : 507
Ageout Count       : 0

Neighbour Information:
Chassis type       : Mac address
Chassis ID         : 00:1f:12:38:7f:c0
Port type          : Locally assigned
Port ID            : 507
Port description   : ge-0/0/2.0
System name        : bng-l48p5-dev


System Description : Juniper Networks, Inc. ex4200-48p , version 10.4I0 Build date: 2010-11-30 09:32:17 UTC

System capabilities
        Supported  : Bridge Router
        Enabled    : Bridge Router

Management Info
        Type              : IPv4
        Address           : 10.204.96.235
        Port ID           : 34
        Subtype           : 1
        Interface Subtype : ifIndex(2)
        OID               : 1.3.6.1.2.1.31.1.1.1.1.34
Media endpoint class: Network Connectivity
 
Organization Info
       OUI      : 0.12.f
       Subtype  : 1
       Index    : 1
       Info     : 22A8360000

Organization Info
       OUI      : 0.12.f
       Subtype  : 2
       Index    : 2
       Info     : 030100

    show lldp neighbors interface ge-0/0/0.0 (for a VoIP AvayaTelephone with LLDP-MED Support)

    user@switch>show lldp neighbors interface ge-0/0/0.0 
        
LLDP Neighbor Information:
Local Information:
Index: 20 Time to live: 120 Time mark: Thu Apr 15 22:26:22 2010 Age: 16 secs 
Local Interface    : ge-0/0/0.0
Parent Interface   : -
Local Port ID      : 517
Ageout Count       : 0

Neighbour Information:
Chassis type       : Network address
Chassis ID         : 0.0.0.0
Port type          : Mac address
Port ID            : 00:04:0d:fc:55:48
System name        : AVAFC5548

System capabilities 
        Supported  : Bridge Telephone 
        Enabled    : Bridge 

Management Info 
        Type              : IPv4
        Address           : 0.0.0.0
        Port ID           : 1
        Subtype           : 1
        Interface Subtype : ifIndex(2)
        OID               : 1.3.6.1.2.1.31.1.1.1.1.1
Media endpoint class: Class III Device

MED Hardware revision : 4610D01A
MED Firmware revision : b10d01b2_9.bin
MED Software revision : a10d01b2_9.bin  
MED Serial number     : 07N510103424
MED Manufacturer name : Avaya
MED Model name        : 4610

Organization Info
       OUI      : 0.18.15
       Subtype  : 1
       Index    : 1
       Info     : 036CA00010 

Organization Info
       OUI      : 0.18.15
       Subtype  : 1
       Index    : 2
       Info     : 002303 

Organization Info
       OUI      : 0.18.15
       Subtype  : 2
       Index    : 3
       Info     : 014001AE 

Organization Info
       OUI      : 0.18.15
       Subtype  : 5
       Index    : 4
       Info     : 3436313044303141 
                                        
Organization Info
       OUI      : 0.18.15
       Subtype  : 6
       Index    : 5
       Info     : 62313064303162325F392E62696E 

Organization Info
       OUI      : 0.18.15
       Subtype  : 7
       Index    : 6
       Info     : 61313064303162325F392E62696E 

Organization Info
       OUI      : 0.18.15
       Subtype  : 8
       Index    : 7
       Info     : 30374E353130313033343234 

Organization Info
       OUI      : 0.18.15
       Subtype  : 9
       Index    : 8
       Info     : 4176617961 

Organization Info
       OUI      : 0.18.15
       Subtype  : 10
       Index    : 9
       Info     : 34363130 
                                        
Organization Info
       OUI      : 0.18.15
       Subtype  : 1
       Index    : 10
       Info     : 000028003C 

Organization Info
       OUI      : 0.18.15
       Subtype  : 3
       Index    : 11
       Info     : 00000000 

Organization Info
       OUI      : 0.18.15
       Subtype  : 4
       Index    : 12
       Info     : 000000000000000000000000 

Organization Info
       OUI      : 0.18.15
       Subtype  : 5
       Index    : 13
       Info     : 00000000 

Organization Info
       OUI      : 0.18.15
       Subtype  : 6
       Index    : 14
       Info     : 00000000 
                                        
Organization Info
       OUI      : 0.18.15
       Subtype  : 7
       Index    : 15
       Info     : 01

    show lldp neighbors interface ge-0/0/5.0 (with NetBIOS Snooping Enabled on the Switch)

    user@switch> show lldp neighbors interface ge-0/0/5 
    Age: 299999 secs
Local Interface    : ge-0/0/5.0
Parent Interface   : -
Chassis ID         : 00:10:94:00:00:02
Port description   : 169.254.58.17
System name        : JNPRU\

    Published: 2012-12-06

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