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Table 47. Type, Length, Value (TLV) Types
Type TLV Description
0 End of LLDPDU Marks the end of an LLDPDU.
1 Chassis ID An administratively assigned name that
identies the LLDP agent.
2 Port ID An administratively assigned name that
identies a port through which TLVs are
sent and received.
3 Time to Live An administratively assigned name that
identies a port through which TLVs are
sent and received.
— Optional Includes subtypes of TLVs that advertise
specic conguration information. These
subtypes are Management TLVs, IEEE 802.1,
IEEE 802.3, and TIA-1057 Organizationally
Specic TLVs.
Figure 76. LLDPDU Frame
Optional TLVs
The Dell Networking OS supports these optional TLVs: management TLVs, IEEE 802.1 and 802.3 organizationally specic TLVs, and
TIA-1057 organizationally specic TLVs.
Management TLVs
A management TLV is an optional TLVs subtype. This TLV contains essential management information about the sender.
Organizationally Specic TLVs
A professional organization or a vendor can dene organizationally specic TLVs. They have two mandatory elds (as shown in the
following illustration) in addition to the basic TLV elds.
• Organizationally Unique Identier (OUI) — a unique number the IEEE to an organization or vendor assigns.
• OUI Subtype — These subtypes indicate the information in the following data eld. The owner of the OUI determines the subtypes.
Link Layer Discovery Protocol (LLDP)
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