Users Guide

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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.
This chapter contains the following sections:
• LLPD Commands
• LLDP-MED Commands
LLDP facilitates multi-vendor interoperability by using standard management tools to discover and make available a physical topology
for network management. The Dell Networking operating software implementation of LLDP is based on IEEE standard 801.1ab.
TheDell Networking OS supports the basic LLDP commands on S4820T platform.
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).
LLPD Commands
The following are LLDP commands.
advertise dot1-tlv
Advertise dot1 TLVs (Type, Length, Value).
S4820T
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 identication TLV.
port-vlan-id Enter the keywords port-vlan-id to advertise the port VLAN identication
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.
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Link Layer Discovery Protocol (LLDP)