You are hired to assist an enterprise customer to design their global WAN network. A protected DWDM circuit with disjoint fiber routes and guaranteed restoration times is ordered to connect two hub sites. Which option is a BFD design consideration in relation to protected DWDM?
A. BFD cannot be used with protected DWDM
B. BFD failure detection must be faster than DWDM restoration time
C. The BFD hello timer must match the DWDM circuit restoration time
D. BFD failure detection must be longer than DWDM restoration time
Answer:D
You are hired to assist an enterprise customer to design their global WAN network. A protected DWDM circuit with disjoint fiber routes and guaranteed restoration times is ordered to connect two hub sites. Which option is a BFD design consideration in relation to protected DWDM?
A. BFD cannot be used with protected DWDM B. BFD failure detection must be faster than DWDM restoration time C. The BFD hello timer must match the DWDM circuit restoration time D. BFD failure detection must be longer than DWDM restoration time