I cannot cover Diffserv without ever mentioning his predecessor, the Integrated Services model or Intserv. The latter never seen global deployment because of scalability issues inherent of its architectural design. The idea behind Intserv was to provide end-to-end QoS guarantees to applications like voice, video and conferencing.
This post is the prelude of a more technically inclined article about Quality of Service (QoS). Before digging into the technical details, I wanted to cover a bit of history about telecommunication networks and how QoS evolved from it.
Here comes the first post of this blog. I hope the latter will be a success and that you, our readers will have a good time reading our articles.