Router R15 has been a working part of a network that uses OSPFv2. An engineer then issues the shutdown command in OSPF configuration mode on R15. Which of the following occurs?

IT Questions BankCategory: CCNARouter R15 has been a working part of a network that uses OSPFv2. An engineer then issues the shutdown command in OSPF configuration mode on R15. Which of the following occurs?

Router R15 has been a working part of a network that uses OSPFv2. An engineer then issues the shutdown command in OSPF configuration mode on R15. Which of the following occurs?

  • R15 empties its IP routing table of all OSPF routes but keeps its LSDB intact.
  • R15 empties its LSDB but keeps OSPF neighbor relationships active.
  • R15 keeps OSPF neighbors open but does not accept new OSPF neighbors.
  • R15 keeps all OSPF configuration but ceases all OSPF activities (routes, LSDB, neighbors).

Explanation: The OSPF shutdown command tells the OSPF process to stop operating. That process includes removing any OSPF-learned routes from the IP routing table, clearing the router’s LSDB, and closing existing OSPF neighbor relationships. In effect, it causes OSPF to stop working on the router, but it does retain the configuration so that a no shutdown command will cause the router to start using OSPF again with no changes to the configuration.

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