John Evans, Clarence Filsfils, Morgan Kaufmann, ISBN 0-123-70549-5.
Quality of
service, or QOS, is the term used to describe the science of
engineering a network to make it work well for applications by treating
traffic from applications differently depending upon their
requirements. QOS is the enabling technology for converged networks
supporting voice, video and data applications, ensuring that critical
applications always receive the service that they need.
In Deploying IP and MPLS QOS for Multiservice
Networks,
the authors have provided a comprehensive treatise on this subject. Two
of the recognised industry experts in the field, they bridge the theory
of QOS with the practise of deployment through providing real world
case studies of QOS in multiservice networks. This book:
- describes application SLA requirements;
- helps readers understand concepts of IP QOS by presenting
clear
descriptions of QOS components, architectures, and protocols; - directs readers in the design and deployment of IP QOS
networks
through fully explained examples of actual working designs; - contains real life case studies which focus on implementation.
They start by
describing the application QOS requirements including Voice over IP
(VoIP), streaming video and online gaming. They move on to explain the
key QOS functional building blocks in detail, including classification,
marking, policing, shaping and scheduling. They describe the evolution
of IP QOS architectures, from IP precedence and Type of Service (TOS)
to Integrated Services (Intserv) and Differentiated Services
(Diffserv), and explain how these architectures are applied in networks
using MPLS as well as in IP networks. Fully worked case studies are
presented, based upon real-world deployments, which remove the mystery
behind QOS by illustrating the how, what, and why of implementing QOS
within IP / MPLS networks. Readers will be able to learn from the
successes and failures of these actual working designs and
configurations. A subsequent chapter provides a detailed analysis and
explanation of the options for admission control, with further chapters
addressing capacity planning, the management and operation of QOS
enabled networks, and traffic engineering.
Extensively referenced, Deploying IP and MPLS
QOS for Multiservice Networks
is essential reading for
network engineers, network designers and students seeking to understand
QOS in theory, or to understand how the theory of QOS is applied in IP
and MPLS networks in practise.
Reviews:
"This is an excellent reference book. This book is now the key reference I use for all work I do across the Middle East and Africa in designing next generation IP networks. IP QoS, MPLS TE and Capacity planning are often confused and their interaction misunderstood. This book clearly explains and simplifies all these topics. I have bought copies for all the lead designers I work with as it has simplified our lives immensely. I recommend it to all IP engineers." -
Kian Ellens
"The book does a good job in explaining IP QoS mechanisms, making the topics accessible to wide audience of network engineers. Both theory and practical aspects are discussed which aids understanding. A great reference aid for those working in this field." -
"This book has very well-written and succinct descriptions of each of the major QoS nuts and bolts, with references to standards documents, clear explanations of design intent behind concepts, and pros and cons of alternative approaches. It has been extremely useful to me, in gaining a more-thorough and higher-level understanding of the theory behind the QoS components, in the routers I work with. Best of all, it explains the big picture using standard terminology from the RFCs, without vendor-specific jargon and commands. I got the theory from this book, and then my router user manuals made a lot more sense." -
Available online:
Edited by Adrian Farrel, Morgan Kaufmann, ISBN: 978-0-12-374597-2
Chapter 11 of "Network Quality of Service Know It All", on Core Capacity Planning and Traffic Engineering in IP and MPLS Networks is by John Evans, Clarence Filsfils and Thomas Telkamp. This chapter, addresses core capacity planning and how traffic engineering can be used as a tool to make more efficient use of network capacity.
Core network capacity planning is the process of ensuring that sufficient bandwidth is provisioned such that the committed core network service level agreement (SLA) targets of delay, jitter, loss, and availability can be met. In the core network where link bandwidths are high and traffic is highly aggregated, the SLA requirements for a traffic class can be translated into bandwidth requirements, and the problem of SLA assurance can effectively be reduced to that of bandwidth provisioning. Therefore, the ability to guarantee SLAs is dependent on ensuring that core network bandwidth is adequately provisioned, which is in turn depends on core capacity planning, which is the focus of this chapter.
Available online:
Edited by Adrian Farrel, Morgan Kaufmann, ISBN: 978-0123745989
After a network design has been deployed, the
ability to ensure that a network service continues to deliver the
required SLAs is dependent upon
There are two main approaches, which are
generally used in concert to monitor the performance of a QOS enabled
network service in order to determine whether SLAs have been or can be
met: passive and active network monitoring. This chapter
discusses the technologies and techniques available for both passive and active network monitoring
IP QOS enabled networks.
Available online: