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07-LLDP Commands

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1 LLDP Configuration Commands

LLD P Configuration Commands

display lldp local-information

Syntax

display lldp local-information [ global | interface interface-type interface-number ]

View

Any view

Default level

1: Monitor level

Parameters

global: Displays the global LLDP information.

interface interface-type interface-number: Specifies a port by its type and number.

Description

Use the display lldp local-information command to display the global LLDP information or the information contained in the LLDP TLVs to be sent to neighboring devices through a port.

If no keyword or argument is specified, this command displays all the LLDP information to be sent, including the global LLDP information and the LLDP information about the LLDP-enabled ports.

Examples

# Display all the LLDP information to be sent.

<Sysname> display lldp local-information

Global LLDP local-information:

Chassis ID : 000f-e218-d0d1

System name : H3C

System description : R&D Hangzhou H3C Technologies Co., Ltd.

System capabilities supported : Bridge,Router

System capabilities enabled : Bridge,Router

MED information

Device class: Connectivity device

(MED inventory information of master board)

HardwareRev : VER.A

FirmwareRev : 202

SoftwareRev : S7500E-CMW520-0000

SerialNum : Unknown

Manufacturer name : Unknown

Model name : Unknown

Asset tracking identifier : Unknown

LLDP local-information of port 97[GigabitEthernet2/0/1]:

Port ID subtype : Interface name

Port ID : GigabitEthernet2/0/1

Port description : GigabitEthernet2/0/1 Interface

Management address type : ipV4

Management address : 192.168.0.72

Management address interface type : IfIndex

Management address interface ID : 51

Management address OID : 0

Port VLAN ID(PVID): 1

Port and protocol VLAN ID(PPVID) : 1

Port and protocol VLAN supported : Yes

Port and protocol VLAN enabled : No

VLAN name of VLAN 1: VLAN 0001

Auto-negotiation supported : Yes

Auto-negotiation enabled : Yes

OperMau : speed(100)/duplex(Full)

Power port class : PSE

PSE power supported : Yes

PSE power enabled : No

PSE pairs control ability : No

Power pairs : Signal

Port power classification : Class 0

Link aggregation supported : Yes

Link aggregation enabled : No

Aggregation port ID : 0

Maximum frame Size: 1536

MED information

Media policy type : Unknown

Unknown Policy : Yes

VLAN tagged : No

Media policy VlanID : 0

Media policy L2 priority : 0

Media policy Dscp : 0

PoE PSE power source : Primary

Port PSE Priority : Low

Port Available power value: 15.4(w)

Table 1-1 display lldp local-information command output description

Field	Description
Global LLDP local-information	The global LLDP information
Chassis ID	ID that identifies the LLDP sending device
System name	System name of the device
System description	System description
System capabilities supported	Supported capabilities, which can be: l Bridge, indicating switching l Router, indicating routing
System capabilities enabled	Currently enabled capabilities, which can be: l Bridge, indicating switching is currently enabled. l Router, indicating routing is currently enabled.
PoE device type	PoE device type
MED information	MED information
Device class	MED device type, which can be: l Connectivity device, indicating an intermediate device. l Class I, indicating a normal terminal device. All terminal devices that are LLDP-enabled are of this type. l Class II, indicating a media terminal device. A device of this type is media-capable. That is, besides the capabilities of a normal terminal device, it also supports media stream. l Class III, indicating a communication terminal device. A device of this type supports IP communication systems of end user. A device of this type supports all the capabilities of a normal terminal device and a media terminal device and can be used directly by end users.
(MED inventory information of master board)	MED inventory information of the master board
HardwareRev	Hardware version
FirmwareRev	Firmware version
SoftwareRev	Software version
SerialNum	Serial number
Manufacturer name	Device manufacturer
Model name	Device model
Asset tracking identifier	Asset tracking ID
LLDP local-information of port number interface-type interface-number	LLDP information about a port
Port ID subtype	Port ID type, which can be MAC address or interface name
Port ID	Port ID, the value of which depends on the port ID type
Port description	Port description
Management address type	Management address type
Management address	Management address
Management address interface type	Type of the interface identified by the management address
Management address interface ID	ID of the interface identified by the management address
Management address OID	Management address object ID
Port VLAN ID(PVID)	Port VLAN ID
Port and protocol VLAN ID(PPVID)	Port protocol VLAN ID
Port and protocol VLAN supported	Indicates whether protocol VLAN is supported on the port.
Port and protocol VLAN enabled	Indicates whether protocol VLAN is enabled on the port.
VLAN name of VLAN ID	Name of the VLAN identified by the VLAN ID
Auto-negotiation supported	Indicates whether auto-negotiation is supported on the port.
Auto-negotiation enabled	State of auto-negotiation
OperMau	Current speed and duplex state of the port
Power port class	PoE device type, which can be : l PSE, indicating a power supply device l PD, indicating a powered device
PSE power supported	Indicates whether or not the device can operate as a PSE.
PSE power enabled	Indicates whether or not the device is operating as a PSE.
PSE pairs control ability	Indicates whether or not the PSE-PD pair control is available.
Power pairs	PoE mode, which can be Signal or Spare.
Port power classification	Port power classification of the PD, which can be: l Class0 l Class1 l Class2 l Class3 l Class4
Link aggregation supported	Indicates whether or not link aggregation is supported.
Link aggregation enabled	Indicates whether or not link aggregation is enabled.
Aggregation port ID	Aggregation group ID, which is 0 if link aggregation is not enabled.
Maximum frame Size	Maximum frame size supported
MED information	MED LLDP information
Media policy type	Media policy type, which can be: l unknown l voice l voiceSignaling l guestVoice l guestVoiceSignaling l softPhoneVoice l videoconferencing l streamingVideo l videoSignaling
Unknown Policy	Indicates whether or not the media policy is unknown.
VLAN tagged	Indicates whether packets of the voice VLAN are tagged.
Media Policy VlanID	ID of the voice VLAN
Media Policy L2 priority	Layer 2 priority
Media Policy Dscp	DSCP precedence
Location format	Location format, which can be: l Invalid, indicating the format of the location information is invalid. l Coordinate-based LCI, indicating the location information is coordinate-based. l Civic Address LCI, indicating normal address information. l ECS ELIN, indicating telephone number for urgencies.
Location Information	Location information
PoE PSE power source	PSE type, which can be: l Primary, indicating a primary power supply l Backup, indicating a backup power supply
Port PSE Priority	Port PSE priority, which can be : l Unknown l Critical l High l Low
Port Available power value	PoE power

display lldp neighbor-information

Syntax

display lldp neighbor-information [ interface interface-type interface-number ] [ brief ]

View

Any view

Default level

1: Monitor level

Parameters

interface interface-type interface-number: Specifies a port by its type and number.

brief: Displays the LLDP information in brief.

Description

Use the display lldp neighbor-information command to display the LLDP information about the neighboring devices received through a port.

With no keyword/argument specified, this command displays the LLDP information received through all the ports.

Examples

# Display the LLDP information received through all the ports.

<Sysname> display lldp neighbor-information

LLDP neighbor-information of port 144[GigabitEthernet2/0/48]:

Neighbor index : 1

Update time : 0 days,1 hours,45 minutes,4 seconds

Chassis type : MAC address

Chassis ID : 000f-e22e-972b

Port ID type : Interface name

Port ID : GigabitEthernet3/0/48

Port description : GigabitEthernet3/0/48 Interface

System name : H3C

System description : R&D Hangzhou H3C Technologies Co., Ltd.

System capabilities supported : Bridge,Router

System capabilities enabled : Bridge,Router

Management address type : ipV4

Management address : 192.168.0.74

Management address interface type : IfIndex

Management address interface ID : 347

Management address OID : 0

Port VLAN ID(PVID): 1

Port and protocol VLAN ID(PPVID) : 1

Port and protocol VLAN supported : Yes

Port and protocol VLAN enabled : No

VLAN name of VLAN 1: VLAN 0001

Auto-negotiation supported : Yes

Auto-negotiation enabled : Yes

OperMau : speed(1000)/duplex(Full)

Power port class : PSE

PSE power supported : Yes

PSE power enabled : No

PSE pairs control ability : No

Power pairs : Signal

Port power classification : Class 0

Link aggregation supported : Yes

Link aggregation enabled : No

Aggregation port ID : 0

Maximum frame Size: 1536

Table 1-2 display lldp neighbor-information command output description

Field	Description
LLDP neighbor-information	LLDP information about a neighboring device
LLDP neighbor-information of Port number interface-type interface number	LLDP information received through a specific port
Neighbor index	Neighbor index
Update time	Time when the LLDP information about a neighboring device is latest updated.
Chassis type	Chassis information, which can be: l Chassis component l Interface alias l Port component l MAC address l Network address l Interface name l Locally assigned (indicating the local configuration)
Chassis ID	ID that identifies the LLDP sending device, which can be a MAC address, a network address, an interface or some other value depending on the chassis type.
Port ID type	Port information, which can be: l Interface alias l Port component l MAC address l Network Address l Interface name l Agent circuit ID l Locally assigned (indicating the local configuration)
Port ID	Port ID, the value of which depends on the port ID type
Port description	Port description
System name	System name of the neighboring device
System description	System description of the neighboring device
System capabilities supported	Capabilities supported on the neighboring device, which can be: l Bridge, indicating switching l Router, indicating routing
System capabilities enabled	Capabilities currently enabled on the neighboring device, which can be: l Bridge, indicating switching is currently enabled. l Router, indicating routing is currently enabled.
Management address type	Management address type
Management address	Management address
Management address interface type	Type of the interface identified by the management address
Management address interface ID	Management address interface ID
Management address OID	Management address object ID
Port VLAN ID	Port VLAN ID
Port and protocol VLAN ID(PPVID)	Port protocol VLAN ID
Port and protocol VLAN supported	Indicates whether protocol VLAN is supported.
Port and protocol VLAN enabled	Indicates whether protocol VLAN is enabled.
VLAN name of VLAN 1	Name of he port VLAN
Auto-negotiation supported	Indicates whether auto-negotiation is supported.
Auto-negotiation enabled	State of auto-negotiation
OperMau	Current speed and duplex state
Power port class	PoE device type, which can be: l PSE, indicating a power supply device. l PD, indicating a powered device.
PSE power supported	Indicates whether or not the device can operate as a PSE.
PSE power enabled	Indicates whether or not the device is operating as a PSE.
PSE pairs control ability	Indicates whether or not the PSE-PD pair control is available.
Power pairs	PoE mode, which can be Signal or Spare.
Port power classification	Port power classification of the PD, which can be the following: l Class0 l Class1 l Class2 l Class3 l Class4
Link aggregation supported	Indicates whether or not link aggregation is supported.
Link aggregation enabled	Indicates whether or not link aggregation is enabled.
Aggregation port ID	Aggregation group ID, which is 0 if link aggregation is not enabled.
Maximum frame Size	Maximum frame size supported
Device class	Device type, which can be: l Connectivity device, indicating an intermediate device. l Class Ⅰ, indicating a normal terminal device. All terminal devices that are LLDP-enabled are of this type. l Class Ⅱ, indicating a media terminal device. A device of this type is media-capable. That is, besides the capabilities of a normal terminal device, it also supports media stream. l Class Ⅲ, indicating a communication terminal device. A device of this type supports IP communication systems of end user. A device of this type supports all the capabilities of a normal terminal device and a media terminal device and can be used directly by end users.
Media policy type	Media policy type, which can be: l unknown l voice l voiceSignaling l guestVoice l guestVoiceSignaling l softPhoneVoice l videoconferencing l streamingVideo l videoSignaling
Unknown Policy	Indicates whether or not the device can acquire media policy data
VLAN Tagged	Indicates whether packets of the media VLAN are tagged.
Media Policy VlanID	ID of the media VLAN
Media Policy L2 priority	Layer 2 priority
Media Policy Dscp	DSCP precedence
HardwareRev	Hardware version
FirmwareRev	Firmware version
SoftwareRev	Software version
SerialNumber	Serial number
Manufacturer name	Manufacturer name
Model name	Module name
Asset tracking identifier	Asset tracking ID
Location format	Location information format, which can be: l Invalid, indicating the format of the location information is invalid. l Coordinate-based LCI, indicating the location information is coordinate-based. l Civic Address LCI, indicating normal address information. l ECS ELIN, indicating a telephone for urgencies.
Location Information	Location information
PoE PSE power source	PSE type, which can be: l Primary, indicating a primary power supply l Backup, indicating a backup power supply
PoE service type	PoE service type
Port PSE Priority	Port PSE priority, which can be: l Unknown l Critical l High l Low
Available power value	PoE power
Unknown basic TLV	Unknown basic TLV
TLV type	Unknown basic TLV type
TLV information	Information contained in the unknown basic TLV type
Unknown organizationally-defined TLV	Unknown organization-defined TLV
TLV OUI	OUI of the unknown organization-defined TLV
TLV subtype	Unknown organization-defined TLV subtype
Index	Unknown organization index
TLV information	Information contained in unknown organization-defined TLV

display lldp statistics

Syntax

display lldp statistics [ global | interface interface-type interface-number ]

View

Any view

Default level

1: Monitor level

Parameters

global: Displays the global LLDP statistics.

interface interface-type interface-number: Specifies a port by its type and number.

Description

Use the display lldp statistics command to display the global LLDP statistics or the LLDP statistics of a port.

If no keyword/argument is specified, this command displays all the LLDP statistics.

Examples

# Display all the LLDP statistics.

<Sysname> display lldp statistics

LLDP statistics global Information:

LLDP neighbor information last change time:0 days,1 hours,45 minutes,5 seconds

The number of LLDP neighbor information inserted : 6

The number of LLDP neighbor information deleted : 3

The number of LLDP neighbor information dropped : 0

The number of LLDP neighbor information aged out : 0

LLDP statistics Information of port 97 [GigabitEthernet2/0/1]:

The number of LLDP frames transmitted : 175

The number of LLDP frames received : 517

The number of LLDP frames discarded : 0

The number of LLDP error frames : 0

The number of LLDP TLVs discarded : 0

The number of LLDP TLVs unrecognized : 0

The number of LLDP neighbor information aged out : 0

The number of CDP frames transmitted : 0

The number of CDP frames received : 0

The number of CDP frames discarded : 0

The number of CDP error frames : 0

(The subsequent output, if any, is omitted.)

Table 1-3 display lldp statistics command output description

Field	Description
lldp statistics global information	Global LLDP statistics
LLDP neighbor information last change time	Time the neighbor information is latest updated
The number of LLDP neighbor information inserted	Number of times of adding neighbor information
The number of LLDP neighbor information deleted	Number of times of removing neighbor information
The number of LLDP neighbor information dropped	Number of times of dropping neighbor information due to lack of available memory space
The number of LLDP neighbor information aged out	Number of the neighbor information entries that have aged out
lldp statistics Information of port number interface-type interface-number	LLDP statistics of a port
The number of LLDP frames transmitted	Total number of the LLDP frames transmitted through the port
The number of LLDP frames received	Total number of the LLDP frames received through the port
The number of LLDP frames discarded	Total number of the LLDP frames dropped on the port
The number of LLDP error frames	Total number of the LLDP error frames received through the port
The number of LLDP TLVs discarded	Total number of the LLDP TLVs dropped on the port
The number of LLDP TLVs unrecognized	Total number of the LLDP TLVs that cannot be recognized on the port
The number of LLDP neighbor information aged out	Number of the LLDP neighbor information entries that have aged out on the port
The number of CDP frames transmitted	Total number of the CDP frames transmitted on the port
The number of CDP frames received	Total number of the CDP frames received on the port
The number of CDP frames discarded	Total number of the CDP frames dropped on the port
The number of CDP error frames	Total number of the CDP error frames received on the port

display lldp status

Syntax

display lldp status [ interface interface-type interface-number ]

View

Any view

Default level

1: Monitor level

Parameters

interface interface-type interface-number: Specifies a port by its type and number.

Description

Use the display lldp status command to display the LLDP status of a port.

If no port is specified, this command displays the LLDP status of all the ports.

Examples

# Display the LLDP status of all the ports.

<Sysname> display lldp status

Global status of LLDP: Enable

The current number of LLDP neighbors: 3

The current number of CDP neighbors: 0

LLDP neighbor information last changed time: 0 days,1 hours,45 minutes,5 seconds

Transmit interval : 30s

Hold multiplier : 4

Reinit delay : 2s

Transmit delay : 2s

Trap interval : 5s

Fast start times : 3

Port 97 [GigabitEthernet2/0/1]:

Port status of LLDP : Enable

Admin status : Tx_Rx

Trap flag : No

Roll time : 0s

Number of neighbors: 1

Number of MED neighbors : 0

Number of CDP neighbors : 0

Number of sent optional TLV : 22

Number of received unknown TLV : 0

Table 1-4 display lldp status command output description

Field	Description
Global status of LLDP	Indicating whether or not LLDP is globally enabled
The current number of LLDP neighbors	Total number of the LLDP neighbor devices
The current number of CDP neighbors	The current number of CDP neighbors
LLDP neighbor information last changed time	The last changed time of LLDP neighbor information
Transmit interval	Interval to send LLDPDU
Hold multiplier	TTL multiplier
Reinit delay	Initialization delay
Transmit delay	Delay period to send LLDPDUs
Trap interval	Interval to send traps
Fast start times	Number of the LLDPDUs to be sent successively when a new neighboring device is detected
Port number interface-type interface-number	Port LLDP status
Port status of LLDP	Indicates whether or not LLDP is enabled on the port.
Admin status	LLDP mode of the port, which can be: l TxRx. A port in this mode sends and receives LLDPDUs. l Rx_Only. A port in this mode receives LLDPDUs only. l Tx_Only. A port in this mode sends LLDPDUs only. l Disable. A port in this mode does not send or receive LLDPDUs.
Trap Flag	Indicates whether or not trap is enabled.
Roll time	LLDP polling interval. A value of 0 indicates LLDP polling is disabled.
Number of neighbors	Number of the LLDP neighbors connecting to the port
Number of MED neighbors	Number of the MED neighbors connecting to the port
Number of CDP neighbors	Number of the CDP neighbors connecting to the port
Number of sent optional TLV	Number of the optional TLVs contained in an LLDPDU sent through the port
Number of received unknown TLV	Number of the unknown TLVs contained in a received LLDPDU

display lldp tlv-config

Syntax

display lldp tlv-config [ interface interface-type interface-number ]

View

Any view

Default level

1: Monitor level

Parameters

interface interface-type interface-number: Specifies a port by its type and number.

Description

Use the display lldp tlv-config command to display the TLVs that are currently sent through a port.

If no port is specified, this command displays all the TLVs that are currently sent through all the ports.

Examples

# Display all the TLVs that are currently sent through all the ports.

<Sysname> display lldp tlv-config

LLDP tlv-config of port 97[GigabitEthernet2/0/1]:

NAME STATUS DEFAULT

Basic optional TLV:

Port Description TLV YES YES

System Name TLV YES YES

System Description TLV YES YES

System Capabilities TLV YES YES

Management Address TLV YES YES

IEEE 802.1 extend TLV:

Port VLAN ID TLV YES YES

Port And Protocol VLAN ID TLV YES YES

VLAN Name TLV YES YES

IEEE 802.3 extend TLV:

MAC-Physic TLV YES YES

Power via MDI TLV YES YES

Link Aggregation TLV YES YES

Maximum Frame Size TLV YES YES

LLDP-MED extend TLV:

Capabilities TLV YES YES

Network Policy TLV YES YES

Location Identification TLV NO NO

Extended Power via MDI TLV YES YES

Inventory TLV YES YES

(The subsequent output, if any, is omitted.)

Table 1-5 display lldp tlv-config command output description

Field	Description
LLDP tlv-config of port number interface-type interface-number	TLVs that are currently sent through a port
NAME	TLV type
STATUS	Indicates whether or not TLVs of a specific type are currently sent through a port
DEFAULT	Indicates whether or not TLVs of a specific type are sent through a port by default
Basic optional TLV	Basic TLVs, including: l Port description TLV l System name TLV l System description TLV l System capabilities TLV l Management address TLV
IEEE 802.1 extended TLV	IEEE 802.1 extended TLVs, including: l Port VLAN ID TLV l Port and protocol VLAN ID TLV l VLAN name TLV
IEEE 802.3 extended TLV	IEEE 802.3 extended TLVs, including: l MAC-Physic TLV l Power via MDI TLV l Link aggregation TLV l Maximum frame size TLV
LLDP-MED extend TLV	MED related LLDP TLVs, including: l Capabilities TLV l Network Policy TLV l Location Identification TLV l Extended Power-via-MDI TLV l Inventory TLV, which can be hardware revision TLV, firmware revision TLV, software revision TLV, serial number TLV, manufacturer name TLV, model name TLV, and asset id TLV.

lldp admin-status

Syntax

lldp admin-status { disable | rx | tx | txrx }

undo lldp admin-status

View

Ethernet interface view, port group view

Default level

2: System level

Parameters

disable: Specifies the Disable mode. A port in this mode does not send or receive LLDPDUs.

rx: Specifies the Rx mode. A port in this mode receives LLDPDUs only.

tx: Specifies the Tx mode. A port in this mode sends LLDPDUs only.

txrx: Specifies the TxRx mode. A port in this mode sends and receives LLDPDUs.

Description

Use the lldp admin-status command to specify the LLDP operating mode for a port or all the ports in a port group.

Use the undo lldp admin-status command to restore the default LLDP operating mode.

The default LLDP operating mode is TxRx.

Examples

# Configure the LLDP operating mode as Rx for GigabitEthernet 2/0/3.

<Sysname> system-view

[Sysname] interface gigabitethernet2/0/3

[Sysname-GigabitEthernet2/0/3] lldp admin-status rx

lldp check-change-interval

Syntax

lldp check-change-interval value

undo lldp check-change-interval

View

Ethernet interface view, port group view

Default level

2: System level

Parameters

value: LLDP polling interval to be set, in the range 1 to 30 (in seconds).

Description

Use the lldp check-change-interval command to enable LLDP polling and set the polling interval.

Use the undo lldp check-change-interval command to restore the default.

By default, LLDP polling is disabled.

With LLDP polling enabled, LLDP detects for local configuration changes periodically. A local configuration change triggers LLDPDU sending, through which neighboring devices can be informed of the configuration change timely.

Examples

# Enable LLDP polling on GigabitEthernet2/0/3, setting the polling interval to 30 seconds.

<Sysname> system-view

[Sysname] interface gigabitethernet2/0/3

[Sysname-GigabitEthernet2/0/3] lldp check-change-interval 30

lldp compliance admin-status cdp

Syntax

lldp compliance admin-status cdp { disable | txrx }

View

Ethernet interface view, port group view

Default Level

2: System level

Parameters

disable: Specifies the disable mode, where CDP-compatible LLDP neither receives nor transmits CDP packets.

txrx: Specifies the TxRx mode, where CDP-compatible LLDP can send and receive CDP packets.

Description

Use the lldp compliance admin-status cdp command to configure the operation mode of CDP-compatible LLDP on a port or port group.

By default, CDP-compatible LLDP operates in disable mode.

To have your device work with Cisco IP phones, you must enable CDP-compatible LLDP globally and then configure CDP-compatible LLDP to work in TxRx mode on the specified port(s).

Examples

# Configure CDP-compatible LLDP to operate in TxRx mode on GigabitEthernet 2/0/1.

<Sysname> system-view

[Sysname] interface gigabitethernet 2/0/1

[Sysname-GigabitEthernet2/0/1] lldp compliance admin-status cdp txrx

lldp compliance cdp

Syntax

lldp compliance cdp

undo lldp compliance cdp

View

System view

Default Level

2: System level

Parameters

None

Description

Use the lldp compliance cdp command to enable global CDP compatibility.

Use the undo lldp compliance cdp command to restore the default.

By default, global CDP compatibility is disabled.

Note that, as the maximum TTL allowed by CDP is 255 seconds, your TTL configuration, that is, the product of the TTL multiplier and the LLDPDU transmit interval, must be no more than 255 seconds for CDP-compatible LLDP to work properly with Cisco IP phones.

Related commands: lldp hold-multiplier, lldp timer tx-interval.

Examples

# Enable LLDP to be compatible with CDP globally.

<Sysname> system-view

[Sysname] lldp compliance cdp

lldp enable

Syntax

lldp enable

undo lldp enable

View

System view, Ethernet interface view, port group view

Default level

2: System level

Parameters

None

Description

Use the lldp enable command to enable LLDP.

Use the undo lldp enable command to disable LLDP.

By default, LLDP is enabled at both the global and port levels.

Note that LLDP takes effect on a port only when it is enabled both globally and on the port.

Examples

# Disable LLDP on GigabitEthernet 2/0/3.

<Sysname> system-view

[Sysname] interface gigabitethernet2/0/3

[Sysname-GigabitEthernet2/0/3] undo lldp enable

lldp encapsulation snap

Syntax

lldp encapsulation snap

undo lldp encapsulation [ snap ]

View

Ethernet interface view, port group view

Default level

2: System level

Parameters

None

Description

Use the lldp encapsulation snap command to configure the encapsulation format for LLDPDUs as SNAP on a port or a group of ports.

Use the undo lldp encapsulation command to restore the default encapsulation format for LLDPDUs.

By default, Ethernet II encapsulation applies.

The command does not apply to LLDP-CDP packets, which use only SNAP encapsulation.

Examples

# Configure the encapsulation format for LLDPDUs as SNAP on GigabitEthernet 2/0/3.

<Sysname> system-view

[Sysname] interface gigabitethernet2/0/3

[Sysname-GigabitEthernet2/0/3] lldp encapsulation snap

lldp fast-count

Syntax

lldp fast-count value

undo lldp fast-count

View

System view

Default level

2: System level

Parameters

value: Number of the LLDPDUs to be sent successively when a new neighboring device is detected. This argument ranges from 1 to 10.

Description

Use the lldp fast-count command to set the number of the LLDPDUs to be sent successively when a new neighboring device is detected.

Use the undo lldp fast-count command to restore the default.

By default, the number is 3.

Examples

# Configure to send four LLDP successively when a new neighboring device is detected.

<Sysname> system-view

[Sysname] lldp fast-count 4

lldp hold-multiplier

Syntax

lldp hold-multiplier value

undo lldp hold-multiplier

View

System view

Default level

2: System level

Parameters

value: TTL multiplier, in the range 2 to 10.

Description

Use the lldp hold-multiplier command to set the TTL multiplier.

Use the undo lldp hold-multiplier command to restore the default.

The TTL multiplier defaults to 4.

You can set the TTL of the local device information by configuring the TTL multiplier.

The TTL of the information about a device is determined by the following expression:

TTL multiplier × LLDPDU transmit interval

You can set the TTL of the local device information by configuring the TTL multiplier. Note that the TTL can be up to 65535 seconds. TTLs longer than it will be rounded off to 65535 seconds.

Related commands: lldp timer tx-interval.

Examples

# Set the TTL multiplier to 6.

<Sysname> system-view

[Sysname] lldp hold-multiplier 6

lldp management-address-format string

Syntax

lldp management-address-format string

undo lldp management-address-format

View

Ethernet interface view, port group view

Default Level

2: System level

Parameters

None

Description

Use the lldp management-address-format string command to configure the encapsulation format of the management address as strings in TLVs.

Use the undo lldp management-address-format command to restore the default.

By default, the management address is encapsulated in the form of numbers in TLVs.

Examples

# Configure GigabitEthernet 2/0/3 to encapsulate the management address in the form of strings in management address TLVs.

<Sysname> system-view

[Sysname] interface gigabitethernet2/0/3

[Sysname-GigabitEthernet2/0/3] lldp management-address-format string

lldp management-address-tlv

Syntax

lldp management-address-tlv [ ip-address ]

undo lldp management-address-tlv

View

Ethernet interface view, port group view

Default level

2: System level

Parameters

ip-address: Management address to be set.

Description

Use the lldp management-address-tlv command to enable the management address sending. This command also sets the management address.

Use the undo lldp management-address-tlv command to disable management address sending.

By default, the management address is sent through LLDPDUs, and the management address is the primary IP address of the VLAN with the least VLAN ID among the VLANs whose packets are permitted on the port. If the primary IP address is not configured, the management address is 127.0.0.1. For information about VLAN, refer to VLAN Configuration in the Access Volume.

Note that an LLDPDU carries only one management address. If you set the management address repeatedly, the latest one takes effect.

Examples

# Set the management address to 192.6.0.1 for GigabitEthernet2/0/3.

<Sysname> system-view

[Sysname] interface gigabitethernet2/0/3

[Sysname-GigabitEthernet2/0/3] lldp management-address-tlv 192.6.0.1

lldp notification remote-change enable

Syntax

lldp notification remote-change enable

undo lldp notification remote-change enable

View

Ethernet interface view, port group view

Default level

2: System level

Parameters

None

Description

Use the lldp notification remote-change enable command to enable trap for a port or all the ports in a port group.

Use the undo lldp notification remote-change enable command to restore the default.

By default, trap is disabled on a port.

Examples

# Enable trap for GigabitEthernet2/0/3.

<Sysname> system-view

[Sysname] interface gigabitethernet2/0/3

[Sysname-GigabitEthernet2/0/3] lldp notification remote-change enable

lldp timer notification-interval

Syntax

lldp timer notification-interval value

undo lldp timer notification-interval

View

System view

Default level

2: System level

Parameters

value: Interval to send trap messages, in the range 5 to 3600 (in seconds).

Description

Use the lldp timer notification-interval command to set the interval to send trap messages.

Use the undo lldp timer notification-interval command to restore the default.

By default, the interval to send trap messages is 5 seconds.

Examples

# Set the interval to send trap messages to 8 seconds.

<Sysname> system-view

[Sysname] lldp timer notification-interval 8

lldp timer reinit-delay

Syntax

lldp timer reinit-delay value

undo lldp timer reinit-delay

View

System view

Default level

2: System level

Parameters

value: Initialization delay period to be set, in the range 1 to 10 (in seconds).

Description

Use the lldp timer reinit-delay command to set the initialization delay period.

Use the undo lldp timer reinit-delay command to restore the default.

By default, the initialization delay period is 2 seconds.

Examples

# Set the initialization delay period to 4 seconds.

<Sysname> system-view

[Sysname] lldp timer reinit-delay 4

lldp timer tx-delay

Syntax

lldp timer tx-delay value

undo lldp timer tx-delay

View

System view

Default level

2: System level

Parameters

value: Delay period to send LLDPDUs, in the range 1 to 8192 (in seconds).

Description

Use the lldp timer tx-delay command to set the delay period to send LLDPDUs.

Use the undo lldp timer tx-delay command to restore the default.

By default, the delay period to send LLDPDUs is 2 seconds.

Examples

# Set the delay period to send LLDPDUs to 4 seconds.

<Sysname> system-view

[Sysname] lldp timer tx-delay 4

lldp timer tx-interval

Syntax

lldp timer tx-interval value

undo lldp timer tx-interval

View

System view

Default level

2: System level

Parameters

value: Interval to send LLDPDUs, in the range 5 to 32768 (in seconds).

Description

Use the lldp timer tx-interval command to set the interval to send LLDPDUs.

Use the undo lldp timer tx-interval command to restore the default.

By default, the interval to send LLDPDUs is 30 seconds.

To enable local device information to be updated on neighboring devices before being aged out, make sure the interval to send LLDPDUs is shorter than the TTL of the local device information.

Examples

# Set the interval to send LLDPDUs to 20 seconds.

<Sysname> system-view

[Sysname] lldp timer tx-interval 20

lldp tlv-enable

Syntax

lldp tlv-enable { basic-tlv { all | port-description | system-capability | system-description | system-name } | dot1-tlv { all | port-vlan-id | protocol-vlan-id [ vlan-id ] | vlan-name [ vlan-id ] } | dot3-tlv { all | link-aggregation | mac-physic | max-frame-size | power } | med-tlv { all | capability | inventory | location-id { civic-address device-type country-code { ca-type ca-value }&<1-10> | elin-address tel-number } | network-policy | power-over-ethernet } }

undo lldp tlv-enable { basic-tlv { all | port-description | system-capability | system-description | system-name } | dot1-tlv { all | port-vlan-id | protocol-vlan-id | vlan-name } | dot3-tlv { all | link-aggregation | mac-physic | max-frame-size | power } | med-tlv { all | capability | inventory | location-id | network-policy | power-over-ethernet } }

View

Ethernet interface view, port group view

Default level

2: System level

Parameters

all: Sends all the basic LLDP TLVs, all the IEEE 802.1 defined LLDP TLVs, or all the IEEE 802.3 defined LLDP TLVs; or sends all the MED related LLDP TLVs except location identification TLVs.

basic-tlv: Sends basic LLDP TLVs.

port-description: Sends port description TLVs.

system-capability: Sends system capabilities TLVs.

system-description: Sends system description TLVs.

system-name: Sends system name TLVs.

dot1-tlv: Sends IEEE 802.1 defined LLDP TLVs.

port-vlan-id: Sends port VLAN ID TLVs.

protocol-vlan-id: Sends port and protocol VLAN ID TLVs.

vlan-name: Sends VLAN name TLVs.

vlan-id: ID of the VLAN the TLVs (port and protocol VLAN ID TLVs or VLAN name TLVs) concerning which are to be sent. This argument defaults to the least protocol VLAN ID.

dot3-tlv: Sends IEEE 802.3 defined LLDP TLVs.

link-aggregation: Sends link aggregation group TLVs.

mac-physic: Sends MAC/PHY configuration/status TLVs.

max-frame-size: Sends maximum frame size TLVS.

power: Sends power via MDI TLVs.

med-tlv: Sends MED related LLDP TLVs.

capability: Sends LLDP-MED capabilities TLVs.

inventory: Sends hardware revision TLVs, firmware revision TLVs, software revision TLVs, serial number TLVs, manufacturer name TLVs, model name TLVs, and asset ID TLVs.

location-id: Sends location identification TLVS.

civic-address: Inserts the address information about the intermediate device in location identification TLVs .

device-type: Device type value. A value of 0 specifies DHCP server; a value of 1 specifies switch, and a value of 2 specifies LLDP-MED endpoint.

country-code: Country code, confirming to ISO 3166.

{ ca-type ca-value }&<1-10>: Configures address information, where ca-type represents the address information type, in the range 0 to 255, ca-value represents address information, a string of 1 to 250 characters, and &<1-10> indicates that you can enter up to ten such parameters.

elin-address: Inserts telephone numbers for urgencies in location identification TLVs.

tel-number: Telephone number for urgencies, a string of 10 to 25 characters.

network-policy: Sends network policy TLVs.

power-over-ethernet: Sends extended power-via-MDI TLVs.

Description

Use the lldp tlv-enable command to enable the sending of specific TLVs for a port or all the ports in a port group.

Use the undo lldp tlv-enable command to disable the sending of specific TLVs.

By default, all the TLVs except location identification TLVs are sent.

Note that:

l To enable MED related LLDP TLV sending, you need to enable LLDP-MED capabilities TLV sending first. Conversely, to disable LLDP-MED capabilities TLV sending, you need to disable the sending of other MED related LLDP TLV.

l To disable MAC/PHY configuration/status TLV sending, you need to disable LLDP-MED capabilities TLV sending first.

l Specifying the all keyword for basic LLDP TLVs and organization defined LLDP TLVs (including IEEE 802.1 defined LLDP TLVs and IEEE 802.3 defined LLDP TLVs) enables sending of all the corresponding LLDP TLVs. For MED related LLDP TLVs, the all keyword enables sending of all the MED related LLDP TLVs except location identification TLVs.

l Enabling the sending of LLDP-MED capabilities TLVs also enables the sending of MAC/PHY configuration/status TLVs.

l You can specify to send multiple types of TLVs by executing the lldp tlv-enable command repeatedly.

Examples

# Enable the sending of link aggregation group TLVs on GigabitEthernet 2/0/3.

<Sysname> system-view

[Sysname] interface gigabitethernet2/0/3

[Sysname-GigabitEthernet2/0/3] lldp tlv-enable dot3-tlv link-aggregation

01-Access Volume

1 LLDP Configuration Commands

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