LevelOne GEL-2060 Quick guide

GEL-2060
LLDP Configuration Commands

Table of Contents
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Table of Contents
LLDP Configuration Commands ........................................................................................................................................... 1
Table of Contents .................................................................................................................................................................. I
Chapter 1 LLDP Configuration Commands .......................................................................................................................... 1
1.1 LLDP Commands .................................................................................................................................................. 1
1.1.1 lldp run ................................................................................................................................................... 1
1.1.2 lldp holdtime........................................................................................................................................... 2
1.1.3 lldp timer ................................................................................................................................................ 2
1.1.4 lldp reinit ................................................................................................................................................ 3
1.1.5 lldp tlv-select .......................................................................................................................................... 4
1.1.6 lldp transmit ........................................................................................................................................... 5
1.1.7 lldp receive............................................................................................................................................. 6
1.1.8 Show lldp errors.................................................................................................................................. 6
1.1.9 Show lldp interface ............................................................................................................................. 7
1.1.10 show lldp neighbors ............................................................................................................................. 8
1.1.11 Show lldp neighbors detail ............................................................................................................ 9
1.1.12 Show lldp traffic .............................................................................................................................. 11
1.1.13 clear lldp counters .......................................................................................................................... 12
1.1.14 clear lldp table ................................................................................................................................ 13
1.1.15 debug lldp errors............................................................................................................................. 13
1.1.16 debug lldp events ........................................................................................................................... 14
1.1.17 debug lldp packets ......................................................................................................................... 15
1.1.18 debug lldp states ............................................................................................................................ 16

LLDP Configuration Commands
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Chapter 1 LLDP Configuration Commands
1.1 LLDP Commands
1.1.1 lldp run
Description
lldp run
no lldp run
To start up LLDP, run lldp run; to shut down LLDP, run no lldp run.
Parameter
None
Default
Shut down
Explanation
None
Command mode
Global configuration mode
Example
The following command is used to start up LLDP.
Switch_config# lldp run

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1.1.2 lldp holdtime
Description
lldp holdtime time
no lldp holdtime
To configure the ttl value of LLDP, run lldp holdtime time. To resume the default
transmission delay, run no lldp holdtime.
Parameter
Parameter
Description
time
Storage time of the transmitted message, ranging between zero
to 65535 seconds
Default
120s
Explanation
None
Command mode
Global configuration mode
Example
The following example shows how to set the ttl value of LLDP to 100 seconds.
Switch_config# lldp holdtime 100
Switch_config#
1.1.3 lldp timer
Description
lldp timer time
no lldp timer
To configure the transmission delay of LLDP, run lldp timer time. To resume the
default transmission delay, run no lldptimer.

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Parameter
Parameter
Description
time
Interval for transmitting the LLDP message, ranging between 5
to 65534 seconds.
Default
30s
Explanation
The transmission interval of the LLDP message must be shorter than its storage time,
ensuring multiple updates in the storage time and preventing error which is led by
packet loss.
Command mode
Global configuration mode
Example
The following example shows how to configure the transmission interval of LLDP to 24
seconds.
Switch_config# lldp timer 24
Switch_config#
1.1.4 lldp reinit
Description
lldp reinit time
no lldp reinit
To configure the transmission delay of LLDP, run lldp reinit time. To resume the
default transmission delay, run no lldp reinit.
Parameter
Parameter
Description
time
Transmission delay of LLDP, whose values range from two to
five seconds

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Default
２s
Explanation
None
Command mode
Global configuration mode
Example
The following example shows how to set the transmission delay of LLDP to five
seconds.
Switch_config# lldp reinit ５
Switch_config#
1.1.5 lldp tlv-select
Description
lldp tlv-select tlv-type
no lldp tlv-select tlv-type
To add TLV which is transmitted by the LLDP message, run lldp tlv-select tlv-type. To
delete TLV which is transmitted by the LLDP message, run no lldp tlv-select tlv-type.
Parameter
Parameter
Description
tlv-type
TLV that can be sent or not whose values are:
macphy-confg ,management-address
port-description ,port-vlan ,system-capabilities
system-description ,system-name
Default
All TLVs are sent.

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Explanation
Three mandatory TLVs must be sent.
Command mode
Global configuration mode
Example
The following example shows how to enable the port description not to be transmitted
in the message.
Switch_config#no lldp tlv-select port-description
Switch_config#
1.1.6 lldp transmit
Description
lldp transmit
no lldp transmit
To set the port to send the LLDP message, run lldp transmit. To forbid receiving the
LLDP message, run no lldp transmit.
Parameter
None
Default
Transmittable LLDP message mode
Explanation
Only after the LLDP module is started can the command be valid.
Command mode
Port configuration mode
Example
The following example shows how to set port f0/0 not to send the LLDP message.
Switch_config_f0/0# no lldp transmit

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Switch_config_f0/0#
1.1.7 lldp receive
Description
lldp receive
no lldp receive
To set the port to the receivable LLDP message mode, run lldp receive. To forbid
receiving the LLDP message, run no lldp receive.
Parameter
None
Default
Receivable LLDP message mode
Explanation
Only after the LLDP module is started can the configuration be valid.
Command mode
Port configuration mode
Example
The following example shows how to set port f0/0 to the LLDP message mode.
Switch_config_f0/0# no lldp receive
Switch_config_f0/0#
1.1.8 Show lldp errors
Description
Show lldp errors
It is used to display the error information about the LLDP module.

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Parameter
None
Default
None
Explanation
None
Command mode
EXEC/Global configuration mode
Example
The following example shows how to set port f0/0 to the LLDP message mode.
switch_config#show lldp errors
LLDP errors/overflows:
Total memory allocation failures: 0
Total encapsulation failures: 0
Total table overflows: 0
switch_config#
1.1.9 Show lldp interface
Description
Show lldp interface interface-name
To check the transmission and reception mode, run show lldp interface interface
name.
Parameter
Parameter
Description
interface-name
Name of the interface, such as f0/1 and fastethernet0/1

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Default
None
Explanation
After LLDP is started, you can check the state of the port.
Command mode
EXEC/global configuration mode
Example
The following example shows how to check the transmission and reception mode of
port f0/1.
switch_config#show lldp interface f0/1
FastEthernet0/1:
Rx: enabled
Tx: enabled
switch_config#
1.1.10 show lldp neighbors
Description
show lldp neighbors
It is used to display the simple information about neighbors.
Parameter
None
Default
None
Explanation
The command is used to display the simple information about neighbors.

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Command mode
EXEC / global configuration mode
Example
switch_config#show lldp neighbors
Capability Codes:
(R)Router,(B)Bridge,(C)DOCSIS Cable Device,(T)Telephone
(W)WLAN Access Point, (P)Repeater,(S)Station,(O)Other
Device-ID Local-Intf Hldtme Port-ID Capability
switch Fas0/2 115 Fas0/32 B
switch Fas0/32 114 Fas0/2 B
Total entries dispalyed: 2
switch_config#
1.1.11 Show lldp neighbors detail
Description
Show lldp neighbors detail
It is used to display the detailed information about the neighbor.
Parameter
None
Default
None
Explanation
None
Command mode
EXEC/global configuration mode

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Example
switch_config#show lldp neighbors detail
chassis id: 00e0.0f61.ca53
port id: Fas0/32
port description: FastEthernet0/32
system name: switch.
system description: (tm) S3448 Software, Version 2.0.1K
Serial: S35000456
Copyright by Shanghai Baud Data Communication CO. LTD.
Compiled: 2008-11-13 13:33:36 by 16170F032B9F
Time remaining: 98
system capabilities: R B
enabled capabilities: B
Managment Address:
IP: 192.168.213.62
Auto Negotiation -- supported,enabled
Physical media capabilitise:
100baseTX(FD)
100baseTX(HD)
10baseT(FD)
10baseT(HD)
Media Attachment Unit type: 16
------------------------------------------
chassis id: 00e0.0f61.ca35
port id: Fas0/2
port description: FastEthernet0/2
system name: switch.
system description: (tm) S3448 Software, Version 2.0.1K
Serial: S35000456
Copyright by Shanghai Baud Data Communication CO. LTD.

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Compiled: 2008-11-13 13:33:36 by 16170F032B9F
Time remaining: 95
system capabilities: R B
enabled capabilities: B
Managment Address:
IP: 90.0.0.66
Auto Negotiation -- supported,enabled
Physical media capabilitise:
100baseTX(FD)
100baseTX(HD)
10baseT(FD)
10baseT(HD)
Media Attachment Unit type: 16
------------------------------------------
Total entries dispalyed: 2
switch#
1.1.12 Show lldp traffic
Description
Show lldp traffic
To display all statistics information about LLDP, run show lldp traffic.
Parameter
None
Default
None
Explanation
None

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Command mode
EXEC/global configuration mode
Example
switch_config#show lldp traffic
LLDP traffic statistics:
Total frames out: 1599
Total entries aged: 0
Total frames in: 624
Total frames received in error: 0
Total frames discarded: 0
Total TLVs unrecognized: 0
switch_config#
1.1.13 clear lldp counters
Description
clear lldp counters
To clear the statistics information, run clear lldp counters.
Parameter
None
Default
None
Explanation
None
Command mode
EXEC
Example
switch#clear lldp counters
switch#

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1.1.14 clear lldp table
Description
clear lldp table
To remove the neighbor list, run clear lldp table.
Parameter
None
Default
None
Explanation
None
Command mode
EXEC
Example
switch#clear lldp table
switch#
1.1.15 debug lldp errors
Description
debug lldp errors
To report some error information about the LLDP module, run debug lldp errors.
Parameter
None
Default
None

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Explanation
None
Command mode
EXEC
Example
switch#debug lldp errors
debug lldp errors on
switch#show debug
lldp errors debugging is on
switch#Nov 14 09:39:04LLDP recive a bad frame on interface FastEthernet0/2
Nov 14 09:49:44LLDP transmit fail on interface FastEthernet0/2
1.1.16 debug lldp events
Description
debug lldp events
To report some special events about the LLDP module, run debug lldp events.
Parameter
None
Default
None
Explanation
None
Command mode
EXEC
Example
switch#debug lldp events
debug lldp events on
switch#show debug

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lldp event debugging is on
switch#config
switch_config#int f0/2
switch_config_f0/2#no lldp tr
switch_config_f0/2#Nov 14 09:39:04 LLDP transmit a end packet on interface FastEthernet0/2
Nov 14 09:44:08LLDP recive a unrecognized tlv frame on interface FastEthernet0/2
1.1.17 debug lldp packets
Description
debug lldp packets
To report the message transmission event of the LLDP module, run debug lldp
packets.
Parameter
None
Default
None
Explanation
None
Command mode
EXEC
Example
switch#debug lldp packets
debug lldp packets on
switch#show debug
lldp packet debugging is on
switch#Nov 13 16:38:20 LLDP advertisement packet TX'd on intf FastEthernet0/2
Nov 13 16:38:20 LLDP advertisement packet RX'd on intf FastEthernet0/32

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1.1.18 debug lldp states
Description
debug lldp states
To report the information about the state of the LLDP port, run debug lldp states.
Parameter
None
Default
None
Explanation
None
Command mode
EXEC
Example
switch#debug lldp states
debug lldp states on
switch#show debug
lldp state debugging is on
switch#Nov 13 16:39:51 LLDP transmit state on FastEthernet0/2 set to TX FRAME
Nov 13 16:39:51 LLDP transmit state on FastEthernet0/2 set to IDLE
Nov 13 16:39:51 LLDP receive state on FastEthernet0/32 set to RX FRAME
Nov 13 16:39:51 LLDP receive state on FastEthernet0/32 set to WAIT FOR FRAME