Reference Guide

Table 20. 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 identifies the LLDP agent.
2 Port ID An administratively assigned name
that identifies a port through which
TLVs are sent and received.
3 Time to Live An administratively assigned name
that identifies a port through which
TLVs are sent and received.
— Optional Includes sub-types of TLVs that
advertise specific configuration
information. These sub-types are
Management TLVs, IEEE 802.1, IEEE
802.3, and TIA-1057 Organizationally
Specific TLVs.
Figure 60. LLDPDU Frame
Optional TLVs
The Dell Networking operating system (FTOS) supports these optional TLVs: management TLVs, IEEE 802.1 and 802.3
organizationally specific TLVs, and TIA-1057 organizationally specific TLVs.
Management TLVs
A management TLV is an optional TLVs sub-type. This kind of TLV contains essential management information about the
sender.
Organizationally Specific TLVs
A professional organization or a vendor can define organizationally specific TLVs. They have two mandatory fields (as
shown in the following illustration) in addition to the basic TLV fields.
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