LLDP

[jonk34567]

which of these lldp commands are valid 

1.show lldp

2.show lldp intercace fa 0/0

3.show lldp traffic

4.show lldp neighbours

5.show lldp neighbours detail

6.show lldp entry R1

[Francesco Molino]

Hi

All are valid show lldp commands.
Take a look here: https://www.cisco.com/c/en/us/td/docs/switches/lan/catalyst2960/software/release/12-2_37_ey/configuration/guide/scg/swlldp.pdf#page5

You'll have an explanation for all of them.

[jonk34567]

but if i enter most of them it will show error message

[Francesco Molino]

which error you get? Did you activated lldp first?
What model/version of device you're using?