Link Layer Discovery Protocol (Lldp); Ab (Lldp) Overview; Protocol Data Units - Dell Force10 S4810P Configuration Manual

Link Layer Discovery Protocol (LLDP)

Link Layer Discovery Protocol (LLDP)
This chapter contains the following sections:
•

802.1AB (LLDP) Overview

• TIA-1057 (LLDP-MED) Overview
• Configuring LLDP
802.1AB (LLDP) Overview
Link Layer Discovery Protocol (LLDP)—defined by IEEE 802.1AB—is a protocol that enables a LAN
device to advertise its configuration and receive configuration information from adjacent LLDP-enabled
LAN infrastructure devices. The collected information is stored in a management information base (MIB)
on each device, and is accessible via SNMP.

Protocol Data Units

Configuration information is exchanged in the form of Type, Length, Value (TLV) segments.
shows the Chassis ID TLV.
Type—The kind of information included in the TLV
•
Length—The value, in octets, of the TLV after the Length field
•
Value—The configuration information that the agent is advertising
•
is supported only on platforms:
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Figure 30-1
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