Unit 7

Quality of Service (QoS) fundamentals

© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration : Unit 7 Slide 1

Objectives

• Explain why QoS and congestion management is important and how it is provided  Describe why and how to use QoS to Support VoIP Services.

         Choose the proper QoS approach.

Use differentiated service for VoIP services.

Explain the Expedited Forwarding Behavior.

Describe congestion management using Low Latency Queuing for VoIP.

Explain how to avoid congestion in VoIP Networks.

Describe call admission control for VoIP Networks.

Explain how MPLS supports Voice Explain MPLS Traffic Engineering.

Describe fast Re-Routing for Voice.

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PHB Using DiffServ

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IP ToS Field

EF Mechanisms

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QPPB Example

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LLQ Process

Creating a Voice Trunk using MPLS

© 2006 ITT Educational Services Inc. IT412 Voice and Data Integration: Unit 7 Slide 8