You Are Redesigning an OSPF Network That Currently Uses RFC

Multiple Choice

You are redesigning an OSPF network that currently uses RFC 1918 Class A address space to optimize its convergence time. The entire network consists of point-to-point interfaces between routers. Which reason is the best reason to implement topology summarization in this network?

A) to optimize CEF entry allocation
B) to optimize RIB entry allocation
C) to reduce the number of neighbor relationships
D) to reduce link state database size