Reference Guide

Link Layer Discovery Protocol (LLDP) | 559
Enabling LLDP
LLDP is enabled by default. LLDP can be enabled and disabled globally or per interface. If LLDP is
enabled globally, all up interfaces send periodic LLDPDUs. To enable LLDP:
Disabling and Undoing LLDP
• Disable LLDP globally or for an interface using the command disable.
• Undo an LLDP configuration by preceding the relevant command with the keyword
no.
Advertising TLVs
You can configure the system to advertise TLVs out of all interfaces or out of specific interfaces.
• If you configure the system globally, all interfaces will send LLDPDUs with the specified TLVs.
• If you configure an interface, only the interface will send LLDPDUs with the specified TLVs.
If LLDP is configured both globally and at interface level, the interface level configuration overrides the
global configuration. To advertise TLVs:
Step Task Command Command Mode
1 Enter Protocol LLDP mode.
protocol lldp
CONFIGURATION or INTERFACE
2 Enable LLDP.
no disable
PROTOCOL LLDP
Step Task Command Command Mode
1 Enter LLDP mode.
protocol lldp
CONFIGURATION
or INTERFACE