Concept Guide
The following is an example of LLDPDU with both (Reserved and Organizational specic) unrecognized TLVs.
DellEMC#Dec 4 22:38:27 : Received LLDP pkt on TenGigabitEthernet 1/1 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
The system supports all IEEE 802.1AB MIB objects.
The following tables list the objects associated with:
• received and transmitted TLVs
• the LLDP conguration on the local agent
• IEEE 802.1AB Organizationally Specic TLVs
• received and transmitted LLDP-MED TLVs
Table 54. LLDP
Conguration MIB Objects
MIB Object
Category
LLDP Variable LLDP MIB Object Description
LLDP
Conguration
adminStatus lldpPortCongAdminStatus 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 lldpPortCongTLVsTxEnable Indicates which management TLVs
are enabled for system ports.
mibMgmtAddrInstanceTxEnable lldpManAddrPortsTxEnable The management addresses dened
for the system and the ports through
which they are enabled for
transmission.
LLDP Statistics statsAgeoutsTotal lldpStatsRxPortAgeoutsTotal Total number of times that a
neighbor’s information is deleted on
the local system due to an rxInfoTTL
timer expiration.
statsFramesDiscardedTotal lldpStatsRxPortFramesDiscardedTotal Total number of LLDP frames
received then discarded.
statsFramesInErrorsTotal lldpStatsRxPortFramesErrors Total number of LLDP frames
received on a port with errors.
602 Link Layer Discovery Protocol (LLDP)