QoS traffic classification

Let's imagine the roadways of a city do not widen automatically and if there are too many vehicles using the medium (roadways) and they are not exiting quickly enough, traffic starts accumulating and results in congestion. Therefore, each person may take a much longer time to reach their destination.

In a production environment, you're the network engineer for a very large organization with a lot of users and many network applications. Each day, users are simultaneously accessing both internal resources on the network, such as locally hosted applications, and external resources; there are tons of various traffic types that are traveling along the network each day. What would you do if users began experiencing an unacceptable user experience on the corporate network, such as very slow response times?

Each day, there are thousands and even millions of packets being generated by devices and they are sent with messages to another device as a...