CDP & LLDP Flashcards
A device [can/can’t] run CDP and LLDP at the same time.
can
CDP [can/can’t] share VTP information.
can
CDP is […] on Cisco devices by default.
enabled
CDP messages are sent to MAC address […]
0100.0CCC.CCCC
Configure the CDP hold time:
R1(config)# […]
cdp holdtime seconds
Configure the CDP message timer:
R1(config)# […]
cdp timer seconds
Configure the LLDP hold time:
R1(config)# […]
lldp holdtime seconds
Configure the LLDP message timer:
R1(config)# […]
lldp timer seconds
Configure the LLDP reinitialization timer:
R1(config)# […]
lldp reinit seconds
Default CDP holdtime:
180 seconds
Default CDP message timer:
60 seconds
Default CDP version:
Version 2
Default LLDP holdtime:
120 seconds
Default LLDP message timer:
30 seconds
Default LLDP reinitialization timer:
2 seconds
Enable CDP globally:
R1(config)# […]
cdp run
Enable CDP on an interface:
R1(config-if)# […]
cdp enable
Enable CDPv2:
R1(config)# […]
cdp advertise-v2
Enable LLDP globally:
R1(config)# […]
lldp run
Enable LLDP on an interface (rx):
R1(config-if)# […]
lldp receive
Enable LLDP on an interface (tx):
R1(config-if)# […]
lldp transmit
LLDP [can/can’t] share VTP information.
can’t
LLDP is usually […] on Cisco devices by default.
disabled
LLDP messages are sent to MAC address […]
0180.C200.000E
Show detailed information about a single LLDP neighbor:
R1# […]
show lldp entry host-name
Show detailed information about all LLDP neighbors:
R1# […]
show lldp neighbors detail
Show detailed information for a specific CDP neighbor:
R1# […]
show cdp entry host-name
Show detailed information for all CDP neighbors:
R1# […]
show cdp neighbors detail
Show global CDP information:
R1# […]
show cdp
Show global LLDP information:
R1# […]
show lldp
Show information about LLDP frames sent/received:
R1# […]
show lldp traffic
Show LLDP-enabled interfaces:
R1# […]
show llpd interface
Show the CDP neighbor table:
R1# […]
show cdp neighbors
Show the interfaces CDP is enabled on:
R1# […]
show cdp interface
Show the LLDP neighbor table:
R1# […]
show lldp neighbors
Show the number of CDP packets sent/received:
R1# […]
show cdp traffic
What does CDP stand for?
Cisco Discovery Protocol
What does LLDP stand for?
Link Layer Discovery Protocol
Which Layer 2 discovery protocol is an industry standard?
LLDP
Which Layer 2 discovery protocol is Cisco proprietary?
CDP