What is the benefit of deploying Layer 3 QoS marking across an enterprise network?
- Layer 3 marking can carry QoS information on switches that are not IP aware.
- Layer 3 marking can be used to carry non-IP traffic.
- Layer 3 marking can be carried in the 802.1Q fields.
- Layer 3 marking can carry the QoS information end-to-end.
Answers Explanation & Hints:
Marking traffic at Layer 2 or Layer 3 is very important and will affect how traffic is treated in a network using QoS.
Layer 2 marking of frames can be performed for non-IP traffic.
Layer 2 marking of frames is the only QoS option available for switches that are not “IP aware.”
Layer 3 marking will carry the QoS information end-to-end.