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Network Fundamentals Simulator

CDP & LLDP — how devices discover each other

Three devices in a chain. Click Advance timer to send the next CDP/LLDP advertisement and watch the neighbor tables fill in — with the same output as show cdp neighbors on real IOS.

tick: 0s
R1 Cisco C1900 Gi0/1 SW1 Cisco WS-C2960 Gi0/1 · Gi0/2 AP1 Aruba (non-Cisco) eth0 Gi0/1 ↔ Gi0/1 Gi0/2 ↔ eth0
R1# show cdp neighbors
(no neighbors yet)
SW1# show cdp / lldp neighbors
(no neighbors yet)
AP1: LLDP neighbors
(no neighbors yet)
Timeline (last events)
Click Advance timer to send the next multicast.

Practice — quick check

Score: 0 / 0
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