The complementary roles of RSVP and differentiated services in the full-service QoS network
IEEE Communications Magazine
A practical architecture for implementing end-to-end QoS in an IP network
IEEE Communications Magazine
Impact of the evolution of the metropolitan network on the DSL access architecture
IEEE Communications Magazine
IP-based access networks for broadband multimedia services
IEEE Communications Magazine
IEEE Communications Magazine
Ethernet-based public communication services: challenge and opportunity
IEEE Communications Magazine
QoS control by means of COPS to support SIP-based applications
IEEE Network: The Magazine of Global Internetworking
Traffic engineering in metro Ethernet
IEEE Network: The Magazine of Global Internetworking
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From both technical and economic viewpoints, DiffServ IP QoS architecture is accepted as a more practical solution in Internet world because the other IntServ architecture is more complex and has scalability problem. This paper presents a dynamic DiffServ Model called Indirect DiffServ to support dynamic QoS requirements of SIP-based ASP multimedia applications in broadband access networks. An operational model of QoS-enabled broadband access networks to support dynamic QoS for SIP is firstly proposed. Then the procedures to establish QoS-enabled SIP sessions of ASP applications are presented. The signaling interfaces for dynamic provisioning of DiffServ QoS are designed to be based on COPS and COPS-PR protocols. The inter-layer mapping of QoS attributes between SIP and underlying layers is also discussed in this paper. The underling broadband access networks are assumed to support largely-deployed Metro Ethernet 802.1 D/Q QoS.