You are designing the QoS features for a large enterprise network that includes DMVPN. When would you need to configure QoS preclassify?
A) when you are marking packets with the DSCP bits
B) when you are marking packets with the TOS bits
C) when your service provider requires the DSCP bits be set
D) when the QoS policy cannot be based on DSCP ToS bits

Question

Quizplus · Accepted Answer

QoS preclassify is needed when the QoS policy cannot be based on DSCP or ToS bits because it allows classification based on the original packet headers before they are encapsulated by DMVPN.

You Are Designing the QoS Features for a Large Enterprise