Administrator 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 EMC Networking operating software implementation of LLDP is based on IEEE standard 801.1ab.
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).
Topics:
• LLPD Commands
• LLDP-MED Commands
LLPD Commands
The following are LLDP commands.
advertise dot1-tlv
Advertise dot1 TLVs (Type, Length, Value).
Syntax
advertise dot1-tlv {port-protocol-vlan-id | port-vlan-id | vlan-name}
To remove advertised dot1-tlv, use the no advertise dot1-tlv {port-protocol-vlan-id | port-
vlan-id | vlan-name} command.
Parameters
port-protocol-
vlan-id
Enter the keywords port-protocol-vlan-id to advertise the port protocol VLAN
identification TLV.
port-vlan-id Enter the keywords port-vlan-id to advertise the port VLAN identification TLV.
vlan-name Enter the keywords vlan-name to advertise the vlan-name TLV. This keyword is only
supported on the C-Series and S-Series.
Defaults Disabled.
Command Modes CONFIGURATION (conf-lldp) and INTERFACE (conf-if-interface-lldp)
Command History
This guide is platform-specific. For command information about other platforms, see the relevant Dell EMC
Networking OS Command Line Reference Guide.
Version Description
9.10(0.1) Introduced on the S6010-ON and S4048T-ON.
9.10(0.0) Introduced on the S3148.
9.10(0.0) Introduced on the S6100–ON.
9.8(2.0) Introduced on the S3100 series.
9.8(1.0) Introduced on the Z9100–ON.
9.8(0.0P5) Introduced on the S4048-ON.
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958 Link Layer Discovery Protocol (LLDP)