A Framework for Integrated Services Operation over Diffserv Networks

Bernet, Yoram; Ford, P. M.; Yavatkar, Raj; Baker, Fred; Zhang, L.; Speer, M.; Braden, Robert; Davie, Bruce S.; Wroclawski, John; Felstaine, Eyal

doi:10.17487/rfc2998

Cited by 277 publications

(134 citation statements)

References 9 publications

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“…There are a number of work in progress efforts which are directed towards these aggregated control models, including aggregation of RSVP [5], the RSVP DCLASS Object [6] to allow Differentiated Services Code Points (DSCPs) to be carried in RSVP message objects, and operation of Integrated Services over Differentiated Services networks [7].…”

Section: State and Stateless Qosmentioning

confidence: 99%

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Next Steps for the IP QoS Architecture

Huston¹

2000

127

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Section: State and Stateless Qosmentioning

confidence: 99%

“…It appears that further refinement of the QoS architecture is required to integrate DiffServ network services into an end-to-end service delivery model, as noted in [7].…”

Section: Qos-enabled Applicationsmentioning

confidence: 99%

Next Steps for the IP QoS Architecture

Huston¹

2000

127

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“…The resource allocation policies enable the network operator to manage and control the access to their network resources in a scalable and reliable fashion. The policy information structures to manage a Differentiated Services network and integrated services [9] using the Resource Reservation Protocol are a good example of resource allocation policies.…”

Section: The Policy Decision-making For a Multimedia Session Establismentioning

confidence: 99%

A Distributed Policy Approach in Support of Multimedia Session Establishment

Mahmood

Hamer

2003

IFIP Advances in Information and Communication Technology

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Abstract:Policies may be required in various scenarios during a multimedia flow set up, for example, during session setup, policy decisions must be provided to ensure that the session being requested lie within the bounds of the service profile established for the requesting host. Similarly, when a host requests resources to provide a certain QoS for a packet flow, policies may be provided to ensure that the required resources lie within the bounds of the resource profile established for the requesting host. The policy framework at the IETF [1] is focused on the resource reservation issues and thus provided a centralized approach for the policy decision function. This paper attempts to highlight the various scenarios in a multimedia flow establishment that lead to a distributed approach for policy decision-making. The paper also discusses the required characteristics of an interface between the policy decision functions residing in different administrative domains.

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“…However, this model suffers from its scalability problem due to the overhead on maintaining the path state information at each node or router. Several attempts to provide scalable dynamic QoS have been made as in [3][4][5][6]. They combine IntServ with another QoS model, Differentiated Service (DiffServ) [7] which is known to be scalable.…”

Section: Introductionmentioning

confidence: 99%

“…An additional network element called bandwidth broker, is introduced to monitor the resources usage within the domain and determines the admission control dynamically. Although this idea allows dynamic admission control, but flows are assign to a static preconfiguration in [3][4][5]. An extended idea for dynamic resource allocation is explained in [6].…”

Section: Introductionmentioning

confidence: 99%

Using active networks technology for dynamic QoS

et al. 2006

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We propose a dynamic QoS, or D-QoS, model where QoS settings can be automatically reconfigured based upon requests from authorized users. Different levels of privilege can be assigned to users enabling higher privileged users to interrupt the network flows belonging to those of lower privileged levels. To request for a special QoS treatment, a user can issue an active packet to interrupt any active node along its flow path which is D-QoS enabled. The request for a specific interruption level is approved by a D-QoS enabled node which allows for multi-level interruptions to be handled. After an interrupting flow has completed transmitting all its packets, D-QoS enabled node can resume its services for those pending flows which are of lower privilege levels. In this paper, we describe the overall concept of D-QoS and demonstrate how it can be implemented by a small prototype. Using simulation, we show that the proposed system can provide assurance for privileged flows with an improved network utilization where bandwidth is shared among the flows according to the levels of privilege. D-QoS should be deployed on those bottleneck hops with limited bandwidth on the edge network to ensure the best service is given to privileged users.

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A Framework for Integrated Services Operation over Diffserv Networks

Cited by 277 publications

References 9 publications

Next Steps for the IP QoS Architecture

Next Steps for the IP QoS Architecture

A Distributed Policy Approach in Support of Multimedia Session Establishment

Using active networks technology for dynamic QoS

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