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Configuring LLDP and LLDP-MED
Enabling LLDP
Beginning in privileged EXEC mode, follow these steps to enable LLDP:
Command
Step 1
configure terminal
Step 2
lldp run
Step 3
interface interface-id
Step 4
lldp transmit
Step 5
lldp receive
Step 6
end
Step 7
show lldp
Step 8
copy running-config startup-config
To disable LLDP, use the no lldp run global configuration command. To disable LLDP on an interface,
use the no lldp transmit and the no lldp receive interface configuration commands.
This example shows how to globally enable LLDP.
Switch# configure terminal
Switch(config)# lldp run
Switch(config)# end
This example shows how to enable LLDP on an interface.
Switch# configure terminal
Switch(config)# interface gigabitethernet0/1
Switch(config-if)# lldp transmit
Switch(config-if)# lldp receive
Switch(config-if)# end
Configuring LLDP Characteristics
You can configure the frequency of LLDP updates, the amount of time to hold the information before
discarding it, and the initialization delay time. You can also select the LLDP and LLDP-MED TLVs to
send and receive.
Beginning in privileged EXEC mode, follow these steps to configure these characteristics:
Steps 2 through 5 are all optional and can be performed in any order.
Note
Catalyst 2928 Switch Software Configuration Guide
24-4
Purpose
Enter global configuration mode.
Enable LLDP globally on the switch.
Specify the interface on which you are enabling LLDP, and enter
interface configuration mode.
Enable the interface to send LLDP packets.
Enable the interface to receive LLDP packets.
Return to privileged EXEC mode.
Verify the configuration.
(Optional) Save your entries in the configuration file.
Chapter 24
Configuring LLDP and LLDP-MED
OL-23389-01
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Troubleshooting
