Voice trafficbetween two campus enterprise networks is growing. The network designers
decide to add a second 10-Mb Metro Ethernet service parallel to their original 10-Mb service in
orderto provide more bandwidth and diversity. The QoS profile will be the same on the new
10-Mb service due to the voice stability on the first Metro Ethernet link. When the second link
is added to the OSPF domain, which trafficdesign consideration would have the most impact
on the voice trafficwhen both links are active?

A.
per-destination IP address basis

B.
per-flow basis

C.
per-packet basis

D.
per-source IP address basis