Link Layer Discovery Protocol (LLDP) | 643
Figure 30-2. LLDPDU Frame
Optional TLVs
FTOS supports the following optional TLVs:
•
Management TLVs
• IEEE 802.1 and 802.3 Organizationally Specific TLVs
• 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. The five types are described in Table 30-2.
Organizationally Specific TLVs
Organizationally specific TLVs can be defined by a professional organization or a vendor. They have two
mandatory fields (Figure 30-3) in addition to the basic TLV fields (Figure 30-1):
• Organizationally Unique Identifier (OUI)—a unique number assigned by the IEEE to an organization
or vendor.
• OUI Sub-type—These sub-types indicate the kind of information in the following data field. The
sub-types are determined by the owner of the OUI.
Figure 30-3. Organizationally Specific TLV
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