3 hands-on LLDP scenarios you build in your own Cisco Modeling Labs instance and grade against the answer key. LLDP configuration and troubleshooting practice for CCNA and CCNP.
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Harden Cisco IOS edge interfaces by disabling CDP/LLDP toward untrusted endpoints while keeping discovery active on trusted infrastructure links. Routers share a management LAN with a server and form a direct router-to-router adjacency for CDP/LLDP. The learner enables discovery globally, selectively suppresses it on the client-facing edge, and verifies the outcome with show commands.
Enable the open-standard LLDP on adjacent Cisco IOS routers over direct point-to-point links while also attaching the devices to a shared management LAN. Learners configure deterministic LLDP behavior (global enable plus per-interface transmit/receive) and verify neighbor discovery without adding any routing protocols or static routes.
Advanced discovery and monitoring capstone, run as a fault hunt. The NMS has stopped seeing this site: neighbours are missing from the topology map, no traps are arriving, and syslog went quiet — while every device is reachable and pingable. You get symptoms and the required end state — no fault list. Faults span both routers and the switch they all peer through, and more than one of them leaves the monitoring configuration looking complete.
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