NVIDIA Docs Hub NVIDIA Networking Networking Software Switch Software NVIDIA Onyx User Manual v3.10.4504 LTS Link Layer Discovery Protocol (LLDP)

NVIDIA Onyx User Manual v3.10.4504 LTS

Link Layer Discovery Protocol (LLDP)

The Link Layer Discovery Protocol (LLDP) is a vendor-neutral Link Layer protocol in the Internet Protocol Suite used by network devices for advertising their identity, capabilities, and neighbors on a IEEE 802 LAN. The protocol is formally defined in IEEE 802.1AB. From version 3.8.2000, LLDP is now enabled by default.

Configuring LLDP

Enable LLDP globally on the switch.

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            switch (config) # lldp

Enable LLDP per interface.

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            switch (config interface ethernet 1/1) # lldp receive
switch (config interface ethernet 1/1) # lldp transmit

Display LLDP local information.

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            switch (config) # show lldp local
 
LLDP is Enabled
 
Local global configuration
Chassis sub type: macAddress (4)
Chassis id: 00:11:22:33:44:55
System Name: "switch-111111"
System Description: my-system-description
Supported capabilities: B
Supported capabilities enabled: B

Display LLDP remote information.

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            switch (config)# show lldp interfaces ethernet 1/1 remote 
 
Ethernet 1/1
Remote Index: 1
Remote chassis id: 00:11:22:33:44:55 ; chassis id subtype: mac
Remote port-id: ethenret 1/2; port id subtype: local
Remote port description: ethernet 1/2
Remote system name: remote-system
Remote system description: remote-system-description
Remote system capabilities supported: B ; B

DCBX

Data Center Bridging (DCB) is an enabler for running the Ethernet network with lossless connectivity using priority-based flow control and enhanced transmission selection. DCBX (exchange) complements the DCB implementation by offering a dynamic protocol that communicates DCB attributes between peering endpoint. NVIDIA Onyx supports two versions of DCBX TLVs running on top of LLDP:

DCBX IEEE
DCBX CEE

By default DCBX IEEE is enabled when LLDP is enabled. LLDP is enabled by default.

	lldp no lldp Enables LLDP globally. The no form of the command disables the LLDP.
Syntax Description	N/A
Default	Enabled
Configuration Mode	config
History	3.2.0300
History	3.8.2000	Changed default from "disabled" to "enabled"
Example	switch (config)# lldp
Related Commands	show lldp local
Notes

lldp reinit

	lldp reinit <seconds> no lldp reinit Sets the delay in seconds from enabling the LLDP on the port until re-initialization will be attempted. The no form of the command sets the parameter to default.
Syntax Description	seconds	1-10
Default	2
Configuration Mode	config
History	3.2.0300
Example	switch (config)# lldp reinit 10
Related Commands	show lldp timers
Notes

lldp timer

	lldp timer <seconds> no lldp timer Sets the LLDP interval at which LLDP frames are transmitted. (lldpMessageTxInterval). The no form of the command sets the parameter to default.
Syntax Description	seconds	5-32768
Default	30
Configuration Mode	config
History	3.2.0300
Example	switch (config)# lldp timer 10
Related Commands	show lldp timers
Notes

lldp tx-delay

	lldp tx-delay <seconds> no lldp tx-delay Indicates the delay in seconds between successive LLDP frame transmissions. The no form of the command sets the parameter to default.
Syntax Description	seconds	1-8192
Default	2
Configuration Mode	config
History	3.2.0300
Example	switch (config)# lldp tx-delay 10
Related Commands	show lldp timers
Notes	The recommended value for the tx-delay is set by the following formula: 1 <= lldp tx-delay <= (0.25 * lldp timer)

lldp tx-hold-multiplier

	lldp tx-hold-multiplier <seconds> no lldp tx-hold-multiplier The time-to-live value expressed as a multiple of the lldpMessageTxInterval object. The no form of the command sets the parameter to default.
Syntax Description	seconds	1-8192
Default	2
Configuration Mode	config
History	3.2.0300
Example	switch (config)# lldp tx-hold-multiplier 10
Related Commands	show lldp timers
Notes	The actual time-to-live value used in LLDP frames, can be expressed by the following formula: TTL = min(65535, (lldpMessageTxInterval * lldpMessageTxHoldMultiplier)). For example, if the value of lldpMessageTxInterval is 30, and the value of lldpMessageTxHoldMultiplier is 4, then the value 120 is encoded in the TTL field in the LLDP header.

lldp (interface)

	lldp {receive \| transmit} no lldp {receive \| transmit} Enables LLDP receive or transmit capabilities. The no form of the command disables LLDP receive or transmit capabilities.
Syntax Description	med-tlv-select	Enables LLDP media TLVs.
	receive	Enables LLDP receive on this port.
	tlv-select	Enables LLDP TLVs.
	transmit	Enables LLDP transmit on this port.
Default	Enabled for receive and transmit
Configuration Mode	config interface ethernet
History	3.2.0300
Example	switch (config interface ethernet 1/1)# lldp receive
Related Commands	show lldp interface
Notes	The LLDP is disabled by default (globally)

lldp tlv-select

	lldp tlv-select {[dcbx] [dcbx-cee] [port-description] [sys-name] [sys-description] [sys-capababilities] [management-address] [none] all} Sets the LLDP basic TLVs to be transmitted on this port.
Syntax Description	dcbx	Enables LLDP-DCBX TLVs
	dcbx-cee	Enables LLDP-DCBX CEE TLVs
	port-description	LLDP port description TLV
	sys-name	LLDP system name TLV
	sys-description	LLDP system description TLV
	sys-capabilities	LLDP system capabilities TLV
	management-address	LLDP management address TLV
	all	all above TLVs
	none	None of the above TLVs
Default	all
Configuration Mode	config interface ethernet
History	3.2.0300
	3.3.0000	Added “none” parameter
	3.3.4302	Added “dcbx” parameter
	3.3.4402	Added “dcbx-cee” parameter
Example	switch (config interface ethernet 1/1)# lldp tlv-select port-description sys-name
Related Commands	show lldp interface
Notes	The management address is chosen according to the following criteria where 1 takes priority over 2, and 2 takes priority over 3: Smallest IP address of mgmt0 Smallest IP address of mgmt1 First primary address of all non-management interfaces

lldp med-tlv-select

	lldp med-tlv-select {all \| media-capability \| network-policy \| none} Configures LLDP media TLV attributes.
Syntax Description	all	Enables all LLDP media TLVs
	media-capabilities	Enables Media Capabilities TLV
	network-policy	Enables Network-Policy TLV
	none	Disables all LLDP media TLVs
Default	Disabled
Configuration Mode	config interface ethernet
History	3.6.1002
Example	switch (config interface ethernet 1/1)# lldp med-tlv-select all
Related Commands	show lldp interface
Notes

dcb application-priority

	dcb application-priority <selector> <protocol> <priority> Adds an application to the application priority table.
Syntax Description	selector	Protocol type: ethertype
	protocol	Protocol field in hexadecimal notation (e.g. ‘0x8906’ for FCoE, ‘0x8914’ for FIP)
	priority	Range: 0-7
Default	No applications are available. The table is empty.
Configuration Mode	config
History	3.3.4200
Example	switch (config-if)# dcb application-priority ethertype 0x8906
Related Commands	show lldp interface
Notes

clear lldp counters

	clear lldp counters [ <Device \| Port>] Clears LLDP counters for all ports or for a specific port.
Syntax Description	N/A
Default	N/A
Configuration Mode	config
History	3.6.4006
Example	switch (config) # clear lldp counters switch (config) # clear lldp counters 1/1
Related Commands
Notes

show lldp local

	show lldp local Displays LLDP local information.
Syntax Description	N/A
Default	N/A
Configuration Mode	Any command mode
History	3.2.0300
Example	switch (config)# show lldp local LLDP is Enabled Local global configuration Chassis sub type: macAddress (4) Chassis id: 0002C9030046AF00 System Name: my-switch System Description: SN2100 Supported capabilities: B,R Supported capabilities enabled: B
Related Commands
Notes

show lldp interfaces

	show lldp interfaces [ethernet <inf> [med-cap \| remote]] Displays LLDP remote interface table information.
Syntax Description	inf	Local interface number (e.g. 1/1)
	med-cap	Displays local port media capabilities information
	remote	Displays LLDP Ethernet remote configuration & status
Default	N/A
Configuration Mode	Any command mode
History	3.2.0300
	3.3.4200	Updated example
	3.6.1002	Updated example
Example
switch (config)# show lldp interfaces TLV flags: PD: port-description, SN: sys-name, SD: sys-description, SC: sys-capabilities, MA: management-address ETS-C: ETS-Configuration, ETS-R: ETS-Recommendation, AP: Application Priority, PFC: Priority Flow Control CEE: Converged Enhanced Ethernet DCBX version MED-CAP: Media Capabilities MED-NWP: MED-Network Policy Interface Receive Transmit TLVs ----------------------------------------------------------------------------------------- Eth1/1 Enabled Enabled PD, SD Eth1/2 Enabled Enabled PD, SN, SD, SC, MA, PFC, AP, ETS-C, ETS-R Eth1/3 Disabled Disabled PD, SN, SD, SC, MA, PFC, AP, ETS-C, ETS-R, MED-NWP Eth1/4 Enabled Enabled PD, SN, SD, SC, MA, PFC, AP, ETS-C, ETS-R, MED-CAP, MED-NWP Eth1/5 Enabled Enabled PD, SN, SD, SC, MA, PFC, AP, ETS-C, ETS-R Eth1/6 Enabled Enabled PD, SN, SD, SC, MA, PFC, AP, ETS-C, ETS-R Eth1/7 Enabled Enabled PD, SN, SD, SC, MA, PFC, AP, ETS-C, ETS-R
Related Commands
Notes

show lldp remote

	show lldp remote Displays LLDP remote information (remote device id, remote port id, remote system name).
Syntax Description	N/A
Default	N/A
Configuration Mode	Any command mode
History	3.6.3004
Example
switch (config)# show lldp remote ------------------------------------------------------------------------------ Local Interface Device ID Port ID System Name ------------------------------------------------------------------------------ Eth1/4 e4:1d:2d:a5:f3:35 e4:1d:2d:a5:f3:35 Not Advertised Eth1/10 e4:1d:2d:44:65:00 Eth1/10 switch108 Eth1/11 e4:1d:2d:44:65:00 Eth1/11 switch108 Eth1/12 e4:1d:2d:44:65:00 Eth1/12 switch108 Eth1/13 e4:1d:2d:44:65:00 Eth1/13 switch108 Eth1/14 e4:1d:2d:44:65:00 Eth1/14 switch108 Eth1/15 e4:1d:2d:44:65:00 Eth1/15 switch108 Eth1/16 e4:1d:2d:44:65:00 Eth1/16 switch108 Eth1/17 e4:1d:2d:44:65:00 Eth1/17 switch108 Eth1/18 e4:1d:2d:44:65:00 Eth1/18 switch108 Eth1/19 e4:1d:2d:44:65:00 Eth1/19 switch108 Eth1/20 e4:1d:2d:44:65:00 Eth1/20 switch108 Eth1/21 e4:1d:2d:44:65:00 Eth1/21 switch108 Eth1/22 e4:1d:2d:44:65:00 Eth1/22 switch108 Eth1/23 e4:1d:2d:44:65:00 Eth1/23 switch108 Eth1/24 e4:1d:2d:44:65:00 Eth1/24 switch108 Eth1/25 e4:1d:2d:44:65:00 Eth1/25 switch108 Eth1/26 e4:1d:2d:44:65:00 Eth1/26 switch108 Eth1/31 e4:1d:2d:44:65:00 Eth1/31 switch108 Eth1/32 e4:1d:2d:44:65:00 Eth1/32 switch108
Related Commands
Notes

show lldp statistics

	show lldp statistics [ <inf>] Displays LLDP interface statistics.
Syntax Description	N/A
Default	N/A
Configuration Mode	Any command mode
History	3.2.0300
Example
switch (config)# show lldp statistics ---------------------------------------------------------------------------------------------------- Interface Frames In In TLVs TLVs Ageout Out Discarded Errors Total Discarded Unrecognized Frames ---------------------------------------------------------------------------------------------------- Eth1/1 0 0 0 0 0 0 0 Eth1/2 0 0 20 0 40 0 5 Eth1/3 16 0 16 0 0 0 0 Eth1/4 0 0 15 0 30 0 5 Eth1/5 0 0 15 0 30 0 5 Eth1/6 0 0 0 0 0 0 0 Eth1/7 0 0 0 0 0 0 0 Eth1/8 0 0 0 0 0 0 0 Eth1/9 0 0 0 0 0 0 0 Eth1/10 0 0 5 0 15 0 5 Eth1/12 0 0 5 0 15 0 5 Eth1/13 0 0 5 0 15 0 5 Eth1/14 0 0 0 0 0 0 0 Eth1/15 0 0 6 0 18 0 5 Eth1/16 0 0 5 0 15 0 6
Related Commands
Notes

show lldp statistics global

	show lldp statistics global Displays LLDP global statistics.
Syntax Description	N/A
Default	N/A
Configuration Mode	Any command mode
History	3.2.0300
Example	switch (config)# show lldp timers Remote Table Last Change Time : 10300 Remote Table Inserts : 5 Remote Table Deletes : 0 Remote Table Drops : 0 Remote Table Ageouts : 0
Related Commands
Notes

show lldp timers

	show lldp timers Displays LLDP timers configuration
Syntax Description	N/A
Default	N/A
Configuration Mode	Any command mode
History	3.2.0300
Example	switch (config)# show lldp timers msg-tx-interval :30 tx-delay :2 tx-hold :4 tx-reinit-delay :2
Related Commands
Notes

show dcb application-priority

	show dcb application-priority Displays application priority admin table.
Syntax Description	N/A
Default	N/A
Configuration Mode	Any command mode
History	3.3.4200
Example	switch (config)# show dcb application-priority ------------------------------------ Selector Protocol Priority ------------------------------------ Ethertype 0x8906 3 Ethertype 0x8914 3
Related Commands
Notes

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