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Computer and Communication Networks by Nader F. Mir

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Chapter 12. Quality of Service and Resource Allocation

Recall from Chapter 3 that the main portion of the port processor interface in routers supports quality of service (QoS). This chapter explores all angles of QoS and the numerous methods of providing it at various protocol stack layers. This chapter covers the following topics:

Overview of QoS

Integrated services QoS

Traffic shaping

Admission control

Reservation protocol (RSVP)

Differentiated services QoS

Resource allocation

Two broad approaches to QoS are integrated services and differentiated services. Integrated services provide QoS to individual applications and flow records. Providing QoS requires certain features to be maintained in switching nodes. QoS protocols govern ...

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