Administrator Guide

Example of debug lldp Command Output with Unrecognized Reserved and Organizational Specific LLDP TLVs
The following is an example of LLDPDU with both (Reserved and Organizational specific) unrecognized TLVs.
DellEMC#Dec 4 22:38:27 : Received LLDP pkt on GigabitEthernet 1/47 of length 204 :
Dec 4 22:38:27 : Packet dump:
Dec 4 22:38:27 : 01 80 c2 00 00 0e 00 a0 c9 00 00 03 81 00 00 00
Dec 4 22:38:27 : 88 cc 02 07 04 00 a0 c9 00 00 01 04 02 05 54 06
Dec 4 22:38:27 : 02 01 2c fe 05 aa bb cc 04 61 fa 01 40 00 00 00
Dec 4 22:38:28 : 00 00 00 00 00 00 00 00 c6 0f ba 27
Dec 4 22:38:28 : TLV: Chassis ID, Len: 7, Subtype: Mac address (4) Value:
00:a0:c9:00:00:01
Dec 4 22:38:29 : TLV: Port ID, Len: 2, Subtype: Interface name (5) Value: T
Dec 4 22:38:29 : TLV: TTL, Len: 2, Value: 300
Dec 4 22:38:29 : TLV: UNKNOWN TLV, ORG_SPEC[aa-bb-cc, 4], Len: 1, Value:a
Dec 4 22:38:29 : aa bb cc 04 61
Dec 4 22:38:29 : 40
Dec 4 22:38:29 : TLV: UNKNOWN TLV, Type: 125 Len: 1, Value: @
Dec 4 22:38:29 : TLV: ENDOFPDU, Len: 0
Relevant Management Objects
Dell EMC Networking OS supports all IEEE 802.1AB MIB objects.
The following tables list the objects associated with:
received and transmitted TLVs
the LLDP configuration on the local agent
IEEE 802.1AB Organizationally Specific TLVs
received and transmitted LLDP-MED TLVs
Table 41. LLDP Configuration MIB Objects
MIB Object
Category
LLDP Variable LLDP MIB Object Description
LLDP
Configuration
adminStatus lldpPortConfigAdminStatus Whether you enable the local
LLDP agent for transmit, receive,
or both.
msgTxHold lldpMessageTxHoldMultiplier Multiplier value.
msgTxInterval lldpMessageTxInterval Transmit Interval value.
rxInfoTTL lldpRxInfoTTL Time to live for received TLVs.
txInfoTTL lldpTxInfoTTL Time to live for transmitted TLVs.
Basic TLV
Selection
mibBasicTLVsTxEnable lldpPortConfigTLVsTxEnable Indicates which management
TLVs are enabled for system
ports.
mibMgmtAddrInstanceTxEnable lldpManAddrPortsTxEnable The management addresses
defined for the system and the
ports through which they are
enabled for transmission.
LLDP Statistics statsAgeoutsTotal lldpStatsRxPortAgeoutsTotal Total number of times that a
neighbors information is deleted
on the local system due to an
rxInfoTTL timer expiration.
statsFramesDiscardedTotal lldpStatsRxPortFramesDiscardedT
otal
Total number of LLDP frames
received then discarded.
statsFramesInErrorsTotal lldpStatsRxPortFramesErrors Total number of LLDP frames
received on a port with errors.
458 Link Layer Discovery Protocol (LLDP)