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3.
Verify the configuration:
# Display the global LLDP status and port LLDP status on Router A.
[RouterA] display lldp status
Global status of LLDP : Enable
The current number of LLDP neighbors : 2
The current number of CDP neighbors: 0
LLDP neighbor information last changed time: 0 days,0 hours,4 minutes,40 seconds
Transmit interval : 30s
Hold multiplier : 4
Reinit delay : 2s
Transmit delay : 2s
Trap interval : 5s
Fast start times : 3
Port 1 [GigabitEthernet4/1/1]:
Port status of LLDP : Enable
Admin status : Rx_Only
Trap flag : No
Polling interval : 0s
Number of neighbors : 1
Number of MED neighbors : 1
Number of CDP neighbors : 0
Number of sent optional TLV : 0
Number of received unknown TLV : 0
Port 2 [GigabitEthernet4/1/2]:
Port status of LLDP : Enable
Admin status : Rx_Only
Trap flag : No
Polling interval : 0s
Number of neighbors : 1
Number of MED neighbors : 0
Number of CDP neighbors : 0
Number of sent optional TLV : 0
Number of received unknown TLV : 3
The output shows that: GigabitEthernet 4/1/1 of Router A connects a MED device, and
GigabitEthernet 4/1/2 of Router A connects a non-MED device. Both ports operate in Rx mode,
in other words, they only receive LLDP frames.
# Tear down the link between Router A and Router B and then display the global LLDP status and
port LLDP status on Router A.
[RouterA] display lldp status
Global status of LLDP : Enable
The current number of LLDP neighbors : 1
The current number of CDP neighbors: 0
LLDP neighbor information last changed time: 0 days,0 hours,5 minutes,20 seconds
Transmit interval : 30s
