Administrator Guide

Table 50. 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 75. LLDPDU Frame
Optional TLVs
The Dell Networking OS 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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Link Layer Discovery Protocol (LLDP)