LLDP Show commands are easy to understand.

Cisco IOS images that support LLDP

Read Cisco IOU Unsupported Features blog post.

LLDP configuration on Cisco devices

DLS-1#sh lldp neigh
 % LLDP is not enabled
 DLS-1#
 DLS-1#

LLDP show commands on Cisco devices

DLS-1#show lldp neighbors
Capability codes:
(R) Router, (B) Bridge, (T) Telephone, (C) DOCSIS Cable Device
(W) WLAN Access Point, (P) Repeater, (S) Station, (O) Other

Device ID Local Intf Hold-time Capability Port ID

Total entries displayed: 0

DLS-1#

Give it some time to gather information about neighbors and re-run the command.

DLS-1#show lldp neighbors
Capability codes:
(R) Router, (B) Bridge, (T) Telephone, (C) DOCSIS Cable Device
(W) WLAN Access Point, (P) Repeater, (S) Station, (O) Other

Device ID Local Intf Hold-time Capability Port ID

Total entries displayed: 0

DLS-1#
DLS-1#
DLS-1#
DLS-1#show lldp neighbors
Capability codes:
(R) Router, (B) Bridge, (T) Telephone, (C) DOCSIS Cable Device
(W) WLAN Access Point, (P) Repeater, (S) Station, (O) Other

Device ID Local Intf Hold-time Capability Port ID
DLS-2 Gi0/0 120 R Gi0/0
DLS-2 Gi0/1 120 R Gi0/1

Total entries displayed: 2

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Keyboard Banger

Keyboard Banger is a network engineer from Africa. He has been working in network support and administration since 2008. He started writing study notes about certification exams and technology topics a couple of years ago. When he's not writing articles, he can be found wandering on technical forums.

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