display lldp neighbor
Function
The display lldp neighbor command displays information about neighboring devices of all interfaces or a specified interface.
Parameters
Parameter |
Description |
Value |
|---|---|---|
interface interface-type interface-number |
Displays information about neighboring devices of a specified interface.
If no interface is specified, the command displays information about neighboring devices of all interfaces with LLDP enabled. |
- |
Usage Guidelines
Usage Scenario
Using this command, you can know which neighboring devices are connected to the local device, to which interfaces the neighboring devices are connected, layer 2 information about the neighbors, and whether LLDP configuration is correct.
Prerequisites
The LLDP function has been enabled globally and on the specified interface.
Example
# Display information about neighbor devices of interfaces GigabitEthernet0/0/1.
<AC6605> display lldp neighbor interface gigabitethernet0/0/1 GigabitEthernet0/0/1 has 1 neighbors: Neighbor index : 1 Basic port information ------------------------- Chassis type :MAC address Chassis ID :5489-9876-b7d7 Port ID type :Interface name Port ID :GigabitEthernet0/0/1 Port description :NULL System name :S5700 System description :S5700-28C-PWR-EI Huawei Versatile Routing Platform Software VRP (R) software,Version 5.110 (S5700 V200R001C00SPC100) Copyright (C) 2007 Huawei Technologies Co., Ltd.System capabilities supported :bridge System capabilities supported :bridge router System capabilities enabled :bridge router Management address type :ipv4 Management address :192.168.40.103 OID :0.6.15.43.6.1.4.1.2011.5.25.41.1.2.1.1.1 Expired time :98 s DOT1 port information ------------------------- Port VLAN ID(PVID) :1 VLAN name of VLAN 1 :VLAN1 DOT3 port information ------------------------- Auto-negotiation supported :Yes Auto-negotiation enabled :Yes OperMau :speed(1000)/duplex(Full) Power port class :PD PSE power supported :No PSE power enabled :No PSE pairs control ability :No Power pairs :Signal Port power classification :Class3 Power type :Type 2 PSE Power source :Unknown Power priority :Unknown PD requested power value :0.0(w) PSE allocated power value :0.0(w) PD requested power value Mode A :0.0(w) PD requested power value Mode B :0.0(w) PSE allocated power value Alternative A :0.0(w) PSE allocated power value Alternative B :0.0(w) PSE power pairsx :Unknown Power class :Class 0 Power typex :Type unknown PD 4PID :NO PD Load :Single signature PSE maximum available power :0.0(w) PSE Autoclass support :NO Autoclass completed :IDLE Autoclass request :IDLE Power Down :No Link aggregation supported :Yes Link aggregation enabled :No Aggregation port ID :0 Maximum frame Size :1600 MED Device information ------------------------- Device class :Network Connectivity HardwareRev :VER B FirmwareRev :NA SoftwareRev :Version 5.110 V200R001C00SPC200 SerialNum :NA Manufacturer name :HUAWEI TECH CO., LTD Model name :NA Asset tracking identifier :NA Media policy type :Voice Unknown Policy :Defined VLAN tagged :Yes Media policy VlanID :0 Media policy L2 priority :5 Media policy Dscp :46 Power Type :PSE PoE PSE power source :PSE Port PSE Priority :Low Port Available power value :2 Legacy port information ------------------------- 4-pair PoE Supported :No Spare pair Detection/Classification required :No PD Spare Pair Desired State :Disable PSE Spare Pair Operational State :Disable
Item |
Description |
|---|---|
Neighbor index |
Index of a neighbor. |
Chassis type |
ID sub-types of a neighboring device:
|
Chassis ID |
ID of a neighboring device. |
Port ID type |
Subtypes of a port ID.
|
Port ID |
ID of a neighbor interface. |
Port description |
Description of a neighboring interface. |
System name |
System name of a neighboring device. |
System description |
Description of a neighboring device. |
System capabilities supported |
Capabilities of a neighboring device (at least one capability is supported):
|
System capabilities enabled |
Capabilities enabled on a neighboring device (This field is a subset of the system capabilities supported field, and at least one capability must be enabled).
|
Management address type |
Type of the management IP address. |
Management address |
Management IP address of a neighbor. |
OID |
Object identifier information of a neighbor. When the OID information of a neighbor is empty, this field is displayed as -. |
Expired time |
Aging time of a neighbor. |
Port VLAN ID(PVID) |
VLAN ID of an interface. |
Protocol identity |
Protocol ID. |
VLAN name of VLAN 1 |
Name of VLAN 1. |
Auto-negotiation supported |
Whether the interface supports auto-negotiation:
|
Auto-negotiation enabled |
Whether the interface is enabled with auto-negotiation:
|
OperMau |
Transmission rate and duplex mode of the interface. |
Power port class |
PoE type:
|
PSE power supported |
Whether the PSE power is supported.
|
PSE power enabled |
Whether the PSE power is enabled.
|
PSE pairs control ability |
Whether the PSE control is supported.
|
Power pairs |
PoE remote power supply mode.
|
Port power classification |
PD power control level on the interface:
|
Power type |
PoE device type:
The parameter is displayed only when the lldp dot3-tlv power 802.3at command has been executed. |
Power source |
Power supply source. Type of the PSE: Primary power source, Backup source, Reserved, and Unknown Type of the PD: PSE, Reserved, PSE and local, and Unknown The parameter is displayed only when the lldp dot3-tlv power 802.3at command has been executed. |
Power priority |
Power priority:
The parameter is displayed only when the lldp dot3-tlv power 802.3at command has been executed. |
PD requested power value |
Power requested by the PD. The parameter is displayed only when the lldp dot3-tlv power 802.3at command has been executed. |
PSE allocated power value |
Power allocated by the PSE. The parameter is displayed only when the lldp dot3-tlv power 802.3at command has been executed. |
PD requested power value Mode A |
Power requested by the PD in mode A. |
PD requested power value Mode B |
Power requested by the PD in mode B. |
PSE allocated power value Alternative A |
Power allocated by the PSE for a PD in Mode A. |
PSE allocated power value Alternative B |
Power allocated by the PSE for a PD in Mode B. |
PSE power pairsx |
Mode in which the PSE supplies power to a PD. |
Power class |
Power class requested by the PD or allocated by the PSE. |
Power typex |
Working type of the device. |
PD 4PID |
Whether the PD supports all power receive types.
|
PD Load |
Whether isolation between modes A and B is required for the PD.
|
PSE maximum available power |
Maximum output power of the PSE. |
PSE Autoclass support |
Whether the PSE supports Autoclass.
|
Autoclass completed |
Whether Autoclass is completed. |
Autoclass request |
Whether Autoclass is required for the PD. |
Power Down |
Whether the PD requires power supply from the PSE. |
Link aggregation supported |
Whether link aggregation is supported on the interface.
|
Link aggregation enabled |
Whether link aggregation is enabled on an interface.
|
Aggregation port ID |
ID of an aggregated interface, If link aggregation is disabled, the value of this field is 0. |
Maximum frame Size |
Maximum size of a frame supported by the interface. |
Device class |
Type of the MED device. |
HardwareRev |
Hardware version of the product. |
FirmwareRev |
Firmware version of the product. |
SoftwareRev |
Software version of the product. |
SerialNum |
Serial number. |
Manufacturer name |
Name of the manufacturer. |
Model name |
Name of a model. |
Asset tracking identifier |
Asset tracking ID. |
Media policy type |
Type of the xxz media policy:
|
Unknown Policy |
Whether the type of the media policy is unknown. Yes indicates that the media policy type is unknown. No indicates that the media policy type is known. |
VLAN tagged |
Whether to add tag to the packets of the voice VLAN. |
Media policy VlanID |
ID of the voice VLAN. |
Media policy L2 priority |
Layer 2 priority. |
Media policy Dscp |
DSCP value. |
Power Type |
Power supply type:
|
PoE PSE power source |
Type of the PSE:
|
Port PSE Priority |
PSE priority of an interface:
|
Port Available power value |
Port power supply |
4-pair PoE Supported |
Whether the interface supports UPoE. |
Spare pair Detection/Classification required |
Whether the standby device supports the requirement for detection and classification. |
PD Spare Pair Desired State |
Requirement state of the standby PD. |
PSE Spare Pair Operational State |
Operation state of the standby PSE. |
