LLDP is used to advertise the device’s identity and abilities and read other devices connected to the same network.
NOTE LLDP is enabled by default.
(switch(config-if)#) Enable an interface to receive or transmit LLDP packets:
lldp <receive|transmit>
(switch(config)#)
show lldp [local-device|neighbor-info|statistics]
(switch(config)#)
show lldp configuration
Example output:
LLDP Global Configuration:
LLDP Enabled :Yes
LLDP Transmit Interval :30
LLDP Hold time Multiplier :4
LLDP Transmit Delay Interval:2
LLDP Reinit time Interval :2
Optional TLVs configured:
Management Address
Port description
Port VLAN-ID
System capabilities
System description
System name
LLDP Port Configuration:
Port Tx-Enabled Rx-Enabled
1/1/1 Yes Yes
...
(switch(config)#)
show lldp local-device
Example output:
Global Data
---------------
Chassis-id
60
Total Packets transmitted : 198
Total Packets received : 170
Total Packet received and discarded : 0
Total TLVs unrecognized : 0
LLDP Port Statistics:
Port-ID Tx-Packets Rx-packets Rx-discarded TLVs-Unknown
1/1/1 70 43 0 0
1/1/3 70 70 0 0