A Scalable Model for Interbandwidth Broker Resource Reservation and Provisioning

Mantar, Hacı Ali; Hwang, Junseok; Okumuş, İbrahım; Chapin, Steve J.

doi:10.1109/jsac.2004.836010

Cited by 32 publications

(17 citation statements)

References 18 publications

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“…We implemented the proposed model by modifying our software toolkit described in [4] and [17]. For the experiments, we used the topology shown in Fig.…”

Section: Evaluation Resultsmentioning

confidence: 99%

A scalable QoS routing model for diffserv over MPLS networks

Mantar

2007

Telecommun Syst

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In this paper, we present a new Quality of Service (QoS) routing model for Differentiated Services (Diffserv) over Multiprotocol Label Switching (MPLS) networks. We use a pre-established multi-path model in which several MPLS label switching paths (LSPs) are established between each ingress-egress router pair in advance. Ingress routers perform per-request admission control and bulk-type resource reservation based on the resource availability on the associated LSPs. We use a utilization-based dynamic load balancing scheme to increase resource utilization across LSPs. The proposed model increases signaling and state scalability in the network core. It also provides hard QoS guarantees and minimizes admission control time. The experimental results verify the achievements of our model under various network topologies and traffic conditions.

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“…We implemented the proposed model by modifying our software toolkit described in [4] and [17]. For the experiments, we used the topology shown in Fig.…”

Section: Evaluation Resultsmentioning

confidence: 99%

A scalable QoS routing model for diffserv over MPLS networks

Mantar

2007

Telecommun Syst

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“…The outcome (the preferred path) should fi nally be given as input to traffi c engineering mechanisms that will route the traffi c of the specifi c request through this path. Many researchers have studied traffi c engineering issues on intra-domain and inter-domain operation of bandwidth brokers [8,11,12,27]. In this section of the paper, we discuss two models that approach end-to-end traffi c engineering (pathfi nding) on inter-domain operation.…”

Section: Inter-domain Operationmentioning

confidence: 99%

“…All domains should always keep the relevant information in this system synchronized, otherwise the BB will work on inconsistent data, which can lead to incorrect paths and reservations. The implementation of such systems is an open issue and several approaches have been presented [11,12].…”

Section: Centralized Pathfi Nding Modelmentioning

confidence: 99%

“…Also, the RSVP-TE operates only on the runtime of network devices and its operation can not be exported for usage on offl ine or complementary tools. Additionally, the same operation can be achieved through other proposed approaches [11], but they still have the limitation that the freedom of each domain is eliminated (since it announces its local policy) or require common network mechanisms that are not applicable on independently managed networks (and especially if networks use different vendors' equipment).…”

Section: Centralized Pathfi Nding Modelmentioning

confidence: 99%

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Architectures and performance evaluation of bandwidth brokers

Bouras

Primpas

2008

Int J Network Mgmt

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SUMMARYDiffServ is the basis of contemporary QoS-enabled networks. Setting up DiffServ QoS requires extensive engineering effort in dimensioning and provisioning, especially for adjacent networks under different administrations linked in a 'federated' hierarchy. The bandwidth broker is an entity that is responsible for the management of the resources and the QoS service operation in an automated way. In this paper, we present, test and compare two different architectures of bandwidth brokers: a centralized one and a distributed one. We also deal with the inter-domain operation of the bandwidth broker in order to perform end-to-end provisioning. The paper presents the relevant aspects for inter-domain operation of a bandwidth broker and focuses on pathfi nding issues. We discuss two models for inter-domain routing through bandwidth brokers, analyzing their advantages and comparing them. Copyright

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“…Furthermore, the Internet is evolving into the next generation, like ITU-T's NGN, which supports various QoS applications in addition to best-effort services. As QoSoriented services like Voice over IP (VoIP) and IP-TV are emerging over Internet interconnections, BW management between ISPs will become critical in terms of both technology and economics, and the need to interconnect heterogeneous service providers will emerge ( [33,42,43]). Accordingly, the Internet interconnection issue now enters into a new phase which enables network users to satisfy sophisticated needs.…”

Section: Evolution and Current Status Of Internet Interconnection Andmentioning

confidence: 99%

An architecture for internet inter-domain interconnections and bandwidth trading towards effective NGN deployment

Kim

2008

Ann. Telecommun.

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The International Telecommunication Union (ITU-T) is developing an architecture for Next Generation Network (NGN) to provide end-to-end Quality of Service (e2e QoS), for which Internet service provider (ISP) interconnections play a key role. Furthermore, for an effective e2e QoS-guaranteed interconnection across multiple ISPs, it is of a great help to develop a framework which enables ISPs to trade their unused network capacity. This study presents Hub-and-Spoke (H&S) interconnection model, where the hub called Neutral Internet Business eXchange (NIBX) arranges Bandwidth Trading (BT) on the basis of the market mechanism. After introducing qualitative and quantitative justifications of the H&S NIBX interconnection model, we propose a platform prototype for BT based upon the H&S NIBX architecture. Presented also are some detailed descriptions of key functional elements together with decision models embedded in the functions. Operations scenarios show potential benefits of the NIBX + BT architecture for ensuring e2e QoS, the ultimate goal of ITU-T's NGN.

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A Scalable Model for Interbandwidth Broker Resource Reservation and Provisioning

Cited by 32 publications

References 18 publications

A scalable QoS routing model for diffserv over MPLS networks

A scalable QoS routing model for diffserv over MPLS networks

Architectures and performance evaluation of bandwidth brokers

An architecture for internet inter-domain interconnections and bandwidth trading towards effective NGN deployment

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