You have implemented IMPLS-TE on the core and enabled Fast Reroute. BFD is configured on the core facing links. Every thing was working normally until last month when you added video service on the network. Because of business requirements, video packets are treated as high priority and 70% of bandwidth is allocated for the low latency queue. Recently you noticed BFD session losses and MPLS-TE tunnel flaps on the network. Which parameter should you have mentioned proactively to avoid this issue?

A.
BFD session timers and hello message

B.
MPLS-TE tunnel bandwidth and utilization

C.
QoS drops each class of service on core-facing links

D.
CPU utilization on the PE routers

E.
Latency and jitter between PE routers