You are designing a core MPLS-based network with a single OSPF area with no external routes. Which two mechanisms can be used to improve convergence time during a failure? (Choose two.)
A) incremental SPF
B) route filtering
C) graceful restart
D) BFD

Question

Quizplus · Accepted Answer

Incremental SPF reduces the time needed to compute the shortest path tree by only recalculating the affected part of the network. BFD (Bidirectional Forwarding Detection) provides rapid failure detection of the path between two forwarding engines, improving convergence time.

You Are Designing a Core MPLS-Based Network with a Single