show lldp neighbors

show lldp {port [all | port_list]} neighbors {detailed}

Description

Displays the information related to the LLDP neighbors detected on the specified port or ports.

Syntax Description

all Specifies all ports on the switch.
port_list Specifies one or more ports or slots and ports.
detailed Shows detailed information on the neighbors.

Default

N/A.

Usage Guidelines

You must use the detailed parameter to display detailed information about the received LLDP TLVs.

Example

The following example displays LLDP neighbor information for all switch ports:

# show lldp neighbors 
=============================================================================== 
        Neighbor           Neighbor                         Neighbor 
Port    Chassis ID         Port ID            TTL     Age   System-Name 
=============================================================================== 
1:2     00:04:96:99:8C:31  1:23               120     7     Not-Advertised  
11:123  FF:FF:FF:FF:FF:FF  FF:FF:FF:FF:FF:FA  65535   65535 Extreme-440-G2                   
1:21    02:04:96:9A:30:BF  2:27               120     27    Extreme-460-G2-Stac 
k-switch  
1:27    02:04:96:9A:30:BF  2:27               120     0     Vaishnaviv123456789 
0123456789012345678901234567890123456789012345678901234567890123456789012345678 
9012345678901234567890123456789012345678901234567890123456789012345678901234567 
890123456789012345678901234567890123456789012345678901234567890123456789012345 
===============================================================================

The following command lists detailed LLDP neighbor information for all switch ports:

 # show lldp neighbors detailed
LLDP Port 17 detected 1 neighbor
  Neighbor: 00:04:96:98:80:96/17, age 2 seconds
    - Chassis ID type: MAC address (4)
      Chassis ID     : 00:04:96:98:80:96
    - Port ID type: ifName (5)
      Port ID     : "17"
    - Time To Live: 120 seconds
    - System Name: "X670G2-48x-4q"
    - System Description: "ExtremeXOS (X670G2-48x-4q) version 30.2.0.24 xos_\
                           30.2 by tlewis on Tue Jan 29 09:31:57 EST 2019"
    - Avaya/Extreme Fabric Attach element
      Element Type   : 2
      State          : 0
      Management Vlan: 0
      SystemId       : 00:04:96:98:80:96
      Connection Type: MLT
      SMLT-ID        : 258
      MLT-ID         : 768
      EXOS Slot:Port : 1:1 
      Authenticated  : Yes

    - Extreme Fabric Attach NSI(I-SID)/VLAN map
      Authenticated  : Yes
    Status  VlanID  NSI(I-SID)
    ------  ------  --------
         2    2222     11123

The following example shows Port Extension TLV information for bridge port extenders:

# show lldp port 1:2 neighbors detailed
LLDP Port 1:2 detected 1 neighbor
  Neighbor: 02:04:96:97:DD:94/1:2, age 22 seconds
    - Chassis ID type: MAC address (4)
      Chassis ID     : 02:04:96:97:DD:94
    - Port ID type: ifName (5)
      Port ID     : "1:2"
    - Time To Live: 120 seconds
    - System Name: "Stack"
    - System Description: "ExtremeXOS (Stack) version 22.2.0.7 dot1br_22.2.0\
                           .7 by release-manager on Wed Sep 7 14:33:29 EDT 2016"
    - IEEE802.3 Link-aggregation
      Capability/Status : Capable, Enabled (0x03)
      Aggregated Port ID: 0 (0x00000000)
    - MED Model Name: "BPE-G24t."
    - IEEE802.1BR Port Extension: 
      Priority      : 255
      PE CSP Address: 00:00:01:48:00:1a
      PE Address    : 00:00:01:48:00:00

The following example shows BGP Config TLVs. This TLV allows SLX switches to communicate with ExtremeXOS's BGP Auto-peering feature:

# show lldp neighbors detailed

-----------------------------------------------------------------------------
LLDP Port 18 detected 1 neighbor
  Neighbor: 00:04:96:97:D1:5C/18, age 28 seconds
    - Chassis ID type: MAC address (4)
      Chassis ID     : 00:04:96:97:D1:5C
    - Port ID type: ifName (5)
      Port ID     : "18"
    - Time To Live: 120 seconds
    - System Name: "X460G2-48t-10G4"
    - System Description: "ExtremeXOS (X460G2-48t-10G4) version 30.2.0.11 xo\
                           s_30.2 by kmalone on Mon Oct 29 13:46:24 EDT 2018"
    - EXTR Capabilities: "EasyBGP"
    - EXTR EasyBGP:
      EXTR EasyBGP AS-NUM  : 100
      EXTR EasyBGP RouterId: 1.1.0.100
      EXTR EasyBGP Address : fe80::204:96ff:fe97:d15c
    - BGP Config:
      BGP Config Peer Address         : fe80::204:96ff:fe97:d15c
      BGP Config Peer Address AFI/SAFI: IPv6/Unicast
      BGP Config Local-AS             : 100
      BGP Config Identifier           : 1.1.0.100

History

This command was first available in ExtremeXOS 11.2. Information on the LLDP MED extension and Avaya-Extreme proprietary TLVs was added in ExtremeXOS 11.5.

Additional PoE+ information can appear when present in a Power via MDI TLV received from a neighbor starting in ExtremeXOS 12.5.

"System Name" was added to the ouput in ExtremeXOS 22.1.

Management IP address information was added in ExtremeXOS 22.4.

Port Extension TLV information for bridge port extenders (BPEs) was added in ExtremeXOS 22.5.

Fabric Attach authentication information and BGP Config TLVs (allows SLX switches to communicate with ExtremeXOS's BGP auto-peering feature) were added in ExtremeXOS 30.2.

Fabric Attach detailed linke information was added in ExtremeXOS 31.1.

Platform Availability

This command is available on ExtremeSwitching 5320, 5420, 5520, and 5720 series switches.