Voice traffic between 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 order to
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 traffic design consideration would have the most impact on the voice traffic
when both links are active?

A.
per-destination IP address basis

B.
per-flow basis

C.
per-packet basis

D.
per-source IP address basis