300-410 ENARSI: Implementing Cisco Enterprise Advanced Routing and ServicesDemo

By Cisco · Question Mode

QuestionQ562

Layer 3 Technologies

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Refer to the exhibit. After OSPF is configured on R1, some external network destinations become unreachable. Which action resolves the problem?

  • A Disconnect the router with the OSPF router ID 0.0.0 0 from the network.
  • B Increase the SPF delay interval on R1 to synchronize routes.
  • C Change the R1 router ID from 10.255.255.1 to a unique value and clear the process.
  • D Clear the OSPF process on R1 to flush stale LSAs sent by other routers.
Explanation

A Type-5 LSA flood war indicates duplicate OSPF router IDs on routers in different areas. Assigning R1 a unique router ID eliminates the conflicting self-originated external LSA; clearing the OSPF process applies the changed router ID and regenerates OSPF state.

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