Performance analysis of burst admission-control protocols

Widjaja, Indra

doi:10.1049/ip-com:19951551

Cited by 93 publications

(50 citation statements)

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“…We are no longer considering the slotted ring and OBS-JET architectures since, under uniform traffic conditions, their performance is suboptimal, as shown in the previous section. This choice is also supported by results reported in [49], where end-to-end versus hop-by-hop reservation protocols were analyzed (in the context of ATM networks). The relative performance did not change when switching from uniform to nonuniform traffic.…”

Section: Impact Of Nonuniform Trafficsupporting

confidence: 59%

Next-Generation 100-Gigabit Metro Ethernet (100 GbME) Using Multiwavelength Optical Rings

Zapata

Duser

Spencer

et al. 2004

J. Lightwave Technol.

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Abstract-This paper investigates the challenges for developing the current local area network (LAN)-based Ethernet protocol into a technology for future network architectures that is capable of satisfying dynamic traffic demands with hard service guarantees using high-bit-rate channels (80. . .100 Gb/s). The objective is to combine high-speed optical transmission and physical interfaces (PHY) with a medium access control (MAC) protocol, designed to meet the service guarantees in future metropolitan-area networks (MANs). Ethernet is an ideal candidate for the extension into the MAN as it allows seamless compatibility with the majority of existing LANs. The proposed extension of the MAC protocol focuses on backward compatibility as well as on the exploitation of the wavelength domain for routing of variable traffic demands. The high bit rates envisaged will easily exhaust the capacity of a single optical fiber in the band and will require network algorithms optimizing the reuse of wavelength resources. To investigate this, four different static and dynamic optical architectures were studied that potentially offer advantages over current link-based designs. Both analytical and numerical modeling techniques were applied to quantify and compare the network performance for all architectures in terms of achievable throughput, delay, and the number of required wavelengths and to investigate the impact of nonuniform traffic demands. The results show that significant resource savings can be achieved by using end-to-end dynamic lightpath allocation, but at the expense of high delay. IndexTerms-Dynamic optical networks, Ethernet, metropolitan-area networks (MANs), optical burst switching (OBS), ring networks, wavelength-routed optical networks. Manuscript

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Section: Impact Of Nonuniform Trafficsupporting

confidence: 59%

Next-Generation 100-Gigabit Metro Ethernet (100 GbME) Using Multiwavelength Optical Rings

Zapata

Duser

Spencer

et al. 2004

J. Lightwave Technol.

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“…One variation of OBS is based on the Telland-Go protocol for Asynchronous Transfer Mode (ATM) networks [9], in which end users act as sources for bursts of data [10]. In the more common implementation of OBS, however, packets are assembled at access nodes, according to destination and quality of service, to form collections of packets known as bursts.…”

Section: Obsmentioning

confidence: 99%

On the Capacity of Optical Networks: A Framework for Comparing Different Transport Architectures

Weichenberg

Chan

Médard

2006

Proceedings IEEE INFOCOM 2006. 25TH IEEE International Conference on Computer Communications

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Abstract-In this work, we compare three optical transport network architectures: optical packet switching (OPS), optical flow switching (OFS), and optical burst switching (OBS). Our comparison is based on a notion of network capacity as the set of exogenous traffic rates that can be stably supported by a network under its operational constraints. We characterize the capacity regions of the transport architectures, and show that the capacity region of OPS dominates that of OFS, and that the capacity region of OFS dominates that of OBS. Motivated by the incommensurate complexity/cost of comparable transport architectures, we investigate the dependence of their relative capacity performance on the number of switch ports per fiber at core nodes. We find that when OFS and OBS core nodes have significantly many more switch ports per fiber than OPS core nodes, then the capacity regions of OFS and OBS (in the absence of receiver collisions) dominate that of OPS; and when the number of switch ports per fiber is only moderately more in OFS and OBS than in OPS, then it is possible that OFS and OBS do not dominate OPS, but are not dominated by OPS either.

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“…JET is the most prevailing distributed protocol for OBS networks today that does not require any kind of optical delays. [5] Proposed a new approach that assigns different extra offset times to different service classes so as to provide differentiated services in terms of burst loss probability for classes of different priorities, this reduce the loss rate of high priority traffic at the expense of an increase in the loos rate of lower priority traffic. In the end-to-end delay, is present the extra offset time.…”

Section: Just-enough-time (Jet)mentioning

confidence: 99%

Strategy for IP traffic support with QoS in OBS networks

Hesselbach

Huerta

Alvizu

2008

2008 10th Anniversary International Conference on Transparent Optical Networks

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This paper presents a new strategy for burst reservation in OBS networks for the transport of IP/DiffServ traffics with Quality of Service (QoS) constraints using MPLS. The current resource reservation protocols research in OBS offer several algorithms for burst transmission, some of them taking into account QoS parameters. In this paper, these solutions will be shown according to the needs of IP/DiffServ/MPLS traffic. The main features of each strategy will be discussed and an enhanced algorithm proposed. Keywords: Services classification, self-configuring, OBS, QoS, MPLS, DiffServ. I TRODUCTIOThe IP traffic is the core in the most recent applications delivered in Internet. These new applications demands more bandwidth and controlled delay in the network. For example, video contents become widely deployed and emerge as the killer application for the networks of the future where self-organizing mechanisms should be provided to guarantee the requirements, even in case of network failure or dynamic bandwidth allocation in the links. Each single stream can consume from 1 Mbps to 100 Mbps, so the aggregation of video traffics coming from millions of users can overload a traditional core network. Therefore, the new generation networks should provide QoS, Quality of Service, (meaning bandwidth, delay, jitter and losses) according to the needs of each user and the agreement with the network provider. The key problem is how can converge the problem of high speed networks with services classification and resources discovery. In this paper, we propose a strategy where the traffic is marked to belong to a certain class of traffic or priority and, later, the OBS (optical burst switching) technology will transmit every burst according to this mark.In recent years there has been active research in the field of multiprotocol label switching (MPLS). Multi Protocol Label Switching (MPLS) is a flexible routing mechanism based on the assignment of flows to complete end-to-end paths within an Autonomous Domain. "Traffic engineering" in is one of the primary applications envisioned for MPLS. This paper presents the problem of integrate IP with Differentiated Services traffic transmitted over MPLS and an OBS network and suggests a strategy for QoS provision. The paper is organized as follows. In the next section, a quick overview of QoS in IP using DiffServ and MPLS networks is presented, with a short taxonomy of QoS in OBS. The section 3 shows how OBS can transport MPLS traffic. The next section focuses on a proposal for provisioning QoS on OBS. The section 5 presents the existing signaling protocols for the reservation policy for OBS networks and the arguments for and against. The final section summarizes and concludes this paper. QOS I IP/DIFFSERV/MPLS A D I OBS ETWORKSThe network services can be classified according to their level of QoS constrains, which describes how tightly the service can be bound by specific bandwidth, delay, jitter, and loss characteristics. At the first sight, three basic levels of end to end QoS ...

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Performance analysis of burst admission-control protocols

Cited by 93 publications

References 0 publications

Next-Generation 100-Gigabit Metro Ethernet (100 GbME) Using Multiwavelength Optical Rings

Next-Generation 100-Gigabit Metro Ethernet (100 GbME) Using Multiwavelength Optical Rings

On the Capacity of Optical Networks: A Framework for Comparing Different Transport Architectures

Strategy for IP traffic support with QoS in OBS networks

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