intermediate·20 min·有料
The Patch Panel Labels Are Wrong
Use LLDP to find the real topology, then fix routes written from the wrong one.
シナリオ
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.
学習目標
- lldp
- neighbour discovery
- static routing
- troubleshooting
トポロジーと設定
この環境には3台のデバイス(3 Routers)が含まれます。上記のネットワーキングスキルを設定し、トラブルシューティングします。
カリキュラムのトピック
資格試験の出題範囲
- ccna-200-301 · 出題範囲2.3: Configure and verify Layer 2 discovery protocols (CDP, LLDP)
- comptia-network-plus-n10-009 · 出題範囲5.5: Given a scenario, troubleshoot and resolve general networking issues