A mobile network operator is designing an NGN backhaul and plans to migrate their legacy SDH and SONET-based transport network. The NGN network must achieve similar failover and failback times as the legacy network (50 milliseconds). Which method does allow for similar failover and failback times on the new packet-based network?
A) BPDU
B) E-OAM
C) BFD
D) UDLD

Question

Quizplus · Accepted Answer

Bidirectional Forwarding Detection (BFD) is a network protocol that provides fast failure detection times, similar to the 50 milliseconds required, making it suitable for achieving similar failover and failback times in a packet-based network.

A Mobile Network Operator Is Designing an NGN Backhaul and Plans