LAB: OSPF Interface Tuning and Troubleshooting

He're you'll be playing with interface types and optimizing a bit. You'll be putting some troubleshooting skills into action as well.

  1. Change the interface types on your backbone to the type indicated on the diagram below
  2. Lab OSPF Interface Types


  3. Bring up new OSPF adjacencies with routers R1, R2, R6, R8, R9 and R10 as indicated in the diagram below
  4. Make sure your J2300 never becomes a DR of any sort on the links into areas 0.0.0.1, 0.0.0.2 and 0.0.0.3
  5. Log any LSA Retransmissions into a file called ospf.log
  6. Back off the LSA Retransmission timers on your backbone links to 8 seconds
  7. Speed up the LSA Retransmission timers on your links into areas 0.0.0.1, 0.0.0.2 and 0.0.0.3 by 2 seconds
  8. To account for an extremely stable backbone, turn on LSA flood reduction on all Point-to-Point links in area 0.0.0.0
  9. Make sure your router is no longer tracing on OSPF
  10. Lab OSPF Areas




Diagram Downloads: Scalable Vector Graphics, Graphviz dotfile

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