Designing Cisco Enterprise Networks (ENSLD) — Question 168

A network engineer must optimize a campus OSPF deployment. Currently, each time a type 1 or type 2 LSA is generated within an area, the OSPF process must recompute the entire SPT. Which solution improves the recomputation process?

Answer options

• A. SPF
• B. PRC
• C. BFD
• D. iSPF

Correct answer: D

Explanation

The correct answer is iSPF, which allows for incremental SPF calculations, improving the efficiency of the recomputation process by only recalculating affected parts of the SPT rather than the entire tree. The other options, such as SPF, PRC, and BFD, do not specifically address the need for incremental updates in the OSPF process.