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300-615 · Question #23

Refer to the exhibit. An OSPF adjacency between Router-A and Router-B fails to reach the FULL state. Which action resolves the issue?

The correct answer is B. Disable the check of the MTU value. The interface command ip ospf mtu-ignore disables this check of the MTU value in the OSPF DBD packets. Thus, use of this command allows the OSPF adjacency to reach the FULL state even though there is an interface MTU mismatch between two OSPF routers.

Network

Question

Refer to the exhibit. An OSPF adjacency between Router-A and Router-B fails to reach the FULL state. Which action resolves the issue?

Exhibits

300-615 question #23 exhibit 1
300-615 question #23 exhibit 2

Options

  • AAdjust the MTU on Router-A to 1600.
  • BDisable the check of the MTU value.
  • CSet the OSPF media type to point-to-point.
  • DAdjust the MTU on Router-B to 1604.

How the community answered

(25 responses)
  • A
    4% (1)
  • B
    84% (21)
  • C
    4% (1)
  • D
    8% (2)

Explanation

The interface command ip ospf mtu-ignore disables this check of the MTU value in the OSPF DBD packets. Thus, use of this command allows the OSPF adjacency to reach the FULL state even though there is an interface MTU mismatch between two OSPF routers.

Topics

#OSPF adjacency#MTU mismatch#FULL state#ip ospf mtu-ignore

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