Link Layer Discovery Protocol; Ab (Lldp) Overview; Protocol Data Units - Dell Force10 C150 Configuration Manual

Link Layer Discovery Protocol

Link Layer Discovery Protocol
LLDP is supported on the E-Series ExaScale platform with FTOS 8.1.1.0 and later.
This chapter contains the following sections:
• 802.1AB (LLDP) Overview on page 583
• TIA-1057 (LLDP-MED) Overview on page 586
• Configuring LLDP on page 591

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:
c e s
Link Layer Discovery Protocol | 583
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Figure 26-1