After modifying the OSPF network type of the interface under the interface, you need to restart the device or reset ospf. Otherwise ospf will not take effect.

Question

Options

• ATRUE
• BFALSE
• C
• D

• B
  82% (14)
• C
  6% (1)
• D
  12% (2)

Explanation

Changing the OSPF network type on an interface takes effect immediately and dynamically - no device restart or OSPF process reset is required. When the network type is modified, OSPF automatically tears down existing neighbor adjacencies on that interface and renegotiates them using the new network type parameters (e.g., switching from broadcast to point-to-point changes DR/BDR election behavior and hello/dead timers on the fly).

Why A is wrong: A restart or reset would be unnecessarily disruptive. OSPF is designed to handle interface-level parameter changes gracefully in real time; the protocol itself detects the change and re-establishes adjacencies without operator intervention beyond the configuration command.

Memory tip: Think of OSPF network type as a "live knob" - turning it immediately affects how that interface forms neighbors. Only changes to the OSPF process ID or router ID typically require an OSPF process reset to fully propagate.

No community discussion yet for this question.