The Patch Panel Labels Are Wrong
Use LLDP to find the real topology, then fix routes written from the wrong one.
Scenario
Three routers were recabled during a cupboard tidy-up and the port labels were not updated afterwards. The static routes on the middle router were written from the old labels, so each branch's traffic is being sent out of the interface facing the other one. Nothing is reachable end to end. Use the link-layer discovery protocol to find out which router is actually on each interface, then correct the routes to match.
Learning objectives
- lldp
- neighbour discovery
- static routing
- troubleshooting
Topology and configuration
This environment contains 3 devices (3 Routers). You configure and troubleshoot the networking skills listed above.
Curriculum topics
Environment
Subnetica labs run FRRouting and Linux networking with Cisco-like syntax, not Cisco IOS. Commands and behavior may differ from Cisco devices.
Addressing is regenerated on every attempt and the environment is graded automatically.
Certification objectives
- · Objective
- · Objective
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