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592 | Link Layer Discovery Protocol
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Figure 26-7. Configuration and Interface mode LLDP Commands
Enabling LLDP
LLDP is disabled 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.
Step Task Command Command Mode
1 Enter Protocol LLDP mode.
protocol lldp
CONFIGURATION or INTERFACE
2 Enable LLDP.
no disable
PROTOCOL LLDP
R1(conf)#protocol lldp
R1(conf-lldp)#?
advertise Advertise TLVs
disable Disable LLDP protocol globally
end Exit from configuration mode
exit Exit from LLDP configuration mode
hello LLDP hello configuration
mode LLDP mode configuration (default = rx and tx)
multiplier LLDP multiplier configuration
no Negate a command or set its defaults
show Show LLDP configuration
R1(conf-lldp)#exit
R1(conf)#interface gigabitethernet 1/31
R1(conf-if-gi-1/31)#protocol lldp
R1(conf-if-gi-1/31-lldp)#?
advertise Advertise TLVs
disable Disable LLDP protocol on this interface
end Exit from configuration mode
exit Exit from LLDP configuration mode
hello LLDP hello configuration
mode LLDP mode configuration (default = rx and tx)
multiplier LLDP multiplier configuration
no Negate a command or set its defaults
show Show LLDP configuration
R1(conf-if-gi-1/31-lldp)#