Users Guide

Link Layer Discovery Protocol (LLDP)

The link layer discovery protocol (LLDP) advertises connectivity and management from the local station to the adjacent stations on an IEEE

802 LAN. LLDP facilitates multi-vendor interoperability by using standard management tools to discover and make available a physical

topology for network management. The Dell Networking OS implementation of LLDP is based on IEEE standard 801.1ab.

This chapter describes the LLDP commands.

The starting point for using LLDP is invoking LLDP with the protocol lldp command in either CONFIGURATION or INTERFACE mode.

The information LLDP distributes is stored by its recipients in a standard management information base (MIB). You can access the

information by a network management system through a management protocol such as simple network management protocol (SNMP).

For details about implementing LLDP/LLDP-MED, refer to the Link Layer Discovery Protocol chapter of the Dell PowerEdge FN I/O

Aggregator Conguration Guide.

Topics:

• advertise dot3-tlv

• advertise management-tlv

• advertise interface-port-desc

• clear lldp counters

• clear lldp neighbors

• debug lldp interface

• disable

• hello

• multiplier

• protocol lldp (Conguration)

• protocol lldp (Interface)

• show lldp neighbors

• show lldp statistics

advertise dot3-tlv

Advertise dot3 TLVs (Type, Length, Value).

Syntax

advertise dot3-tlv {max-frame-size}

To remove advertised dot3-tlv, use the no advertise dot3-tlv {max-frame-size} command.

Parameters

max-frame-size Enter the keywords max-frame-size to advertise the dot3 maximum frame size.

Defaults none

Command Modes CONFIGURATION (conf-lldp) and INTERFACE (conf-if-interface-lldp)

Link Layer Discovery Protocol (LLDP) 277