IP Quality of Service

  • Published: Jan 23, 2001
  • Copyright 2001
  • Dimensions: 7-3/8" x 9-1/8"
  • Pages: 368
  • Edition: 1st
  • Book
  • ISBN-10: 1-57870-116-3
  • ISBN-13: 978-1-57870-116-2
  • eBook (Watermarked)
  • ISBN-10: 1-58705-433-7
  • ISBN-13: 978-1-58705-433-4

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Product Description

The complete resource for understanding and deploying IP quality of service for Cisco networks

Learn to deliver and deploy IP QoS and MPLS-based traffic engineering by understanding:

  • QoS fundamentals and the need for IP QoS
  • The Differentiated Services QoS architecture and its enabling QoS functionality
  • The Integrated Services QoS model and its enabling QoS functions
  • ATM, Frame Relay, and IEEE 802.1p/802.1Q QoS technologies and how they work with IP QoS
  • MPLS and MPLS VPN QoS and how they work with IP QoS
  • MPLS traffic engineering
  • Routing policies, general IP QoS functions, and other miscellaneous QoS information

Quality-of-service (QoS) technologies provide networks with greater reliability in delivering applications, as well as control over access, delay, loss, content quality, and bandwidth. IP QoS functions are crucial in today's scalable IP networks. These networks are designed to deliver reliable and differentiated Internet services by enabling network operators to control network resources and use. Network planners, designers, and engineers need a thorough understanding of QoS concepts and features to enable their networks to run at maximum efficiency and to deliver the new generation of time-critical multimedia and voice applications.

IP Quality of Service serves as an essential resource and design guide for anyone planning to deploy QoS services in Cisco networks. Author Srinivas Vegesna provides complete coverage of Cisco IP QoS features and functions, including case studies and configuration examples. The emphasis is on real-world application-going beyond conceptual explanations to teach actual deployment.

IP Quality of Service is written for internetworking professionals who are responsible for designing and maintaining IP services for corporate intranets and for service provider network infrastructures. If you are a network engineer, architect, manager, planner, or operator who has a rudimentary knowledge of QoS technologies, this book will provide you with practical insights on what you need to consider when designing and implementing various degrees of QoS in the network. Because incorporating some measure of QoS is an integral part of any network design process, IP Quality of Service applies to all IP networks-corporate intranets, service provider networks, and the Internet.

Customer Reviews

6 of 7 people found the following review helpful
5.0 out of 5 stars Srinivas Makes IP QOS Theory Clear and Gives Practical Guide, February 8, 2001
By 
Robert L Sinclair (Springfield, VA United States) - See all my reviews
This review is from: IP Quality of Service (Hardcover)
If you want to understand the mysteries of IP QOS and/or need to implement QOS in a Cisco environment, this book is an absolute must have.

The writing is crystal clear. Srinivas provides the kind of examples and illustrations that can make fairly complex concepts understandable to anyone who needs to make the most of their networks and support time-critical applications. Virtually every topic includes detailed configs using the latest Cisco IOS. An excellent balance of theory and practical guidance. Very well edited considering its timeliness.

Grenville Armitage's "Quality of Service in IP Networks" also deserves a place on your bookshelf, but if you have to choose, "IP QOS" is the one to get.

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3 of 3 people found the following review helpful
1.0 out of 5 stars Where's the Beef?, March 15, 2003
Amazon Verified Purchase(What's this?)
This review is from: IP Quality of Service (Hardcover)
My first bad review for a Cisco Press book. They have to agree that this book should never have been printed with Cisco's name on it.
This book lacks information in so many ways. Read the section on CBWFQ and you get 1/3 of what you're looking for. I have to use Cisco's website for the rest. The FRTS section is lacking. These are just 2 examples in a book that is 1/3 the size it should be.
Don't buy this book. It's simply not worth the money. No hard feelings toward the author, but I did waste my money and I have to tell others not to. I'll look forward to the next release of this book which I'm sure will include much, much more.
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1 of 1 people found the following review helpful
5.0 out of 5 stars This is the Good Stuff., December 20, 2006
This review is from: IP Quality of Service (Hardcover)
This is a fabulous book if you want to know how the Qos mechanisms work. This guy is a degreed engineer, not somebody who has a B.S. in B.S. and is in a job called "engineer". And his book reflects that.

That said, there are a few points to be made. This isn't a configuration book...it's a "nuts and bolts" book. Try the W. Odom book for configuration. Also, this book is rapidly becoming outdated. Policing explains CAR, but CAR is outdated in favor of Class Based Policing, which doesn't work the same way as CAR at all!

Get the Odom book first. If you're still curious about the nuts and bolts, buy this one.
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Index

Download - 168 KB -- Index

Table of Contents

I. IP QOS.

1. Introducing IP Quality of Service.

Levels of QoS. IP QoS History. Performance Measures. QoS Functions. Layer 2 QoS Technologies. Multiprotocol Label Switching. End-to-End QoS. Objectives. Audience. Scope and Limitations. Organization.

2. Differentiated Services Architecture.

Intserv Architecture. Diffserv Architecture.

3. Network Boundary Traffic Conditioners: Packet Classifier, Marker, and Traffic Rate Management.

Packet Classification. Packet Marking. The Need for Traffic Rate Management. Traffic Policing. Traffic Shaping.

4. Per-Hop Behavior: Resource Allocation I.

Scheduling for Quality of Service (QoS) Support. Sequence Number Computation-Based WFQ. Flow-Based WFQ. Flow-Based Distributed WFQ (DWFQ). Class-Based WFQ. Priority Queuing. Custom Queuing. Scheduling Mechanisms for Voice Traffic.

5. Per-Hop Behavior: Resource Allocation II.

Modified Weighted Round Robin (MWRR). Modified Deficit Round Robin (MDRR). MDRR Implementation.

6. Per-Hop Behavior: Congestion Avoidance and Packet Drop Policy.

TCP Slow Start and Congestion Avoidance. TCP Traffic Behavior in a Tail-Drop Scenario. RED—Proactive Queue Management for Congestion Avoidance. WRED. Flow WRED. ECN. SPD.

7. Integrated Services: RSVP.

RSVP. Reservation Styles. Service Types. RSVP Media Support. RSVP Scalability. Case Study 7-1: Reserving End-to-End Bandwidth for an Application Using RSVP. Case Study 7-2: RSVP for VoIP.

II. LAYER 2, MPLS QOS—INTERWORKING WITH IP QOS.

8. Layer 2 QoS: Interworking with IP QoS.

ATM. ATM Interworking with IP QoS. Frame Relay. Frame Relay Interworking with IP QoS. The IEEE 802.3 Family of LANs.

9. QoS in MPLS-Based Networks.

MPLS. MPLS with ATM. Case Study 9-1: Downstream Label Distribution. MPLS QoS. End-to-End IP QoS. MPLS VPN. Case Study 9-3: MPLS VPN. MPLS VPN QoS. Case Study 9-4: MPLS VPN QoS.

III. TRAFFIC ENGINEERING.

10. MPLS Traffic Engineering.

The Layer 2 Overlay Model. RRR. TE Trunk Definition. TE Tunnel Attributes. Link Resource Attributes. Distribution of Link Resource Information. Path Selection Policy. TE Tunnel Setup. Link Admission Control. TE Path Maintenance. TE-RSVP. IGP Routing Protocol Extensions. TE Approaches. Case Study 10-1: MPLS TE Tunnel Setup and Operation.

IV. APPENDIXES.

Appendix A: Cisco Modular QoS Command-Line Interface.

Traffic Class Definition. Policy Definition. Policy Application. Order of Policy Execution.

Appendix B: Appendix B Packet Switching Mechanisms.

Process Switching. Route-Cache Forwarding. CEF.

Appendix C: Routing Policies.

Using QoS Policies to Make Routing Decisions. QoS Policy Propagation Using BGP.

Appendix D: Real-time Transport Protocol (RTP).

Appendix E: General IP Line Efficiency Functions.

The Nagle Algorithm. Path MTU Discovery. TCP/IP Header Compression. RTP Header Compression.

Appendix F: Link-Layer Fragmentation and Interleaving.

Appendix G: IP Precedence and DSCP Values.

Downloadable Sample Chapter

Download - 1.16 MB -- Chapter 1: Introducing IP Quality of Service

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