Question

In a Packet Tracer scenario demonstrating a point-to-point single-area OSPFv2 configuration:

A. How is the DR (Designated Router) elected on a point-to-point link?
B. What is the default administrative distance for OSPFv2?
C. Which OSPF router type is suitable for a point-to-point link?
D. What command is used to enter OSPF router configuration mode?

Answer 1

In OSPFv2 on a Packet Tracer point-to-point link, DR election doesn't apply, the default administrative distance is 110, the point-to-point OSPF interface is suitable for the link, and the command to enter OSPF configuration mode is 'router ospf [process-id]'.

Step-by-step explanation:

In a Packet Tracer scenario demonstrating a point-to-point single-area OSPFv2 configuration, the question posed involves several aspects of OSPF operation:

• Designated Router (DR) election on a point-to-point link is not applicable because OSPF recognizes the network type as a point-to-point link and does not elect a DR or BDR on such links.
• The default administrative distance for OSPFv2 is 110. This is used to rank the trustworthiness of routing information received from different sources.
• For a point-to-point link, the appropriate router type in OSPF would simply be a point-to-point OSPF interface. OSPF automatically detects the point-to-point nature of the link and optimizes OSPF behavior for this scenario.
• The command used to enter OSPF router configuration mode in Cisco routers is router ospf [process-id]. After entering this command, various OSPF settings can be configured.