Understanding the Fundamentals of QoS

Understanding the Fundamentals of QoS
In order to fully understand QoS, there are a few changes we need to apply to our common
mindset regarding network traffic. We need to consider the mechanisms behind our existing
traffic forwarding, usually comprising a combination of connectionless and connectionoriented
delivery, per-hop router/switch forwarding, and FIFO (first in, first out) queuing.
We need to review what we know about networks where no QoS features are added to the
basic protocol activity. These networks are called best efforts networks.