MPLS using LDP and ATM VC Switching

Davie, Bruce S.; Lawrence, J.; McCloghrie, K.; Rosen, Eric; Swallow, George; Rekhter, Yakov; Doolan, Paul

doi:10.17487/rfc3035

Cited by 69 publications

(108 citation statements)

References 5 publications

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“…It was designed to provide a unified data-carrying service for both circuit-based clients and packet-switching clients. It can be used to carry many different kinds of traffic [3]. MPLS basic idea is to append a small fix length label before each packet in order to forward it inside the MPLS network.…”

Section: Mpls Qos Approachmentioning

confidence: 99%

Performance Evaluation of Triple Play Services Delivery with E2E QoS Provisioning

Ζώτος¹,

Pallis²,

Kourtis³

2010

International Journal of Digital Multimedia Broadcasting

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The creation and wide use of new high quality demanding services (VoIP, High Quality Video Streaming) and the delivery of them over already saturated core and access network infrastructures have created the necessity for E2E QoS provisioning. Network Providers use at their infrastructures several kinds of mechanisms and techniques for providing QoS. Most known and widely used technologies are MPLS and DiffServ. The IEEE 802.16-2004 standard (WiMAX) refers to a promising wireless broadband technology with enhanced QoS support algorithms. This document presents an experimental network infrastructure providing E2E QoS, using a combination of MPLS and DiffServ technologies in the core network and WiMAX technology as the wireless access medium for high priority services (VoIP, High Quality Video Streaming) transmission. The main scope is to map the traffic prioritization and classification attributes of the core network to the access network in a way which does not affect the E2E QoS provisioning. The performance evaluation will be done by introducing different kinds of traffic scenarios in a saturated and overloaded network environment. The evaluation will prove that this combination made feasible the E2E QoS provisioning while keeping the initial constrains as well as the services delivered over a wireless network.

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Section: Mpls Qos Approachmentioning

confidence: 99%

Performance Evaluation of Triple Play Services Delivery with E2E QoS Provisioning

Ζώτος¹,

Pallis²,

Kourtis³

2010

International Journal of Digital Multimedia Broadcasting

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“…In this approach, the ATM and IP layers are managed separately. Recently, an extension of the IP technology, MPLS [27], has been discussed and is now being widely introduced. MPLS provides connection-oriented switching capability based on IP signaling protocols.…”

Section: Transport Network Evolutionmentioning

confidence: 99%

Recent Developments in and Challenges of Photonic Networking Technologies

Sato

2007

IEICE Transactions on Communications

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SUMMARYThe transport network paradigm is changing as evidenced by IP convergence and the divergence of architectures and technologies. Harnessing the full power of light will spur the creation of new broadband and ubiquitous services networks. To attain this, however, not only must photonic technologies be optimized, but they must also be coordinated with complementary electrical technologies. With regard to photonic network design technologies, further developments are necessary including very large scale network design, quasi-dynamic network design, and multi-layer optical path network design. key words: photonic networks, photonic network design, multi-layer optical paths IntroductionBroadband access is penetrating throughout the world, and FTTH (Fiber to the Home) is being rapidly adopted in Japan and North America as the most powerful means of broadband access; there were more than six million users as of the middle of 2006 in Japan. Although this number is relatively small compared to ADSL (Asymmetric Digital Subscriber Line) subscribers (14.5 million), it continues to increase at a much higher rate than ADSL and is expected to exceed that of ADSL within a couple of years. Because of the rapid penetration of broadband access and the introduction of new services for businesses, the traffic of broadband users is increasing rapidly, i.e., more than 100 percent every year [1]. Considering further burst in the volume of traffic envisaged, which will be spurred by the penetration of bandwidth intensive new services based on video, another advances in network performance and cost reductions must be attained.In designing future networks and systems, we must consider the current paradigm changes; IP (Internet Protocol) convergence and the divergence of architectures and technologies. To start with, we discuss past and present status of network development in Sect. 2. Harnessing the full power of light will spur the creation of new broadband and ubiquitous services networks. The key requirements of enhancing the performance and reducing the cost of future IP-based multimedia communication networks can be effectively achieved by exploiting wavelength routing. This requires, however, not only the optimization of photonic technologies but also coordination with complementary electrical technologies. MPLS (Multiprotocol Label will also be needed. In Sect. 3, we discuss key issues that we need to consider in the development of the photonic network, and directions towards network throughput expansion. Finally, we discuss some of the cutting-edge photonic networking technologies including segmented network design, quasi-dynamic network design, multi-layer optical path network design, and optical fast circuit switching. IP Convergence and Technology Divergence Transport Network EvolutionFigure 1 depicts the trends in transport network evolution over the last two decades. At the middle of the 1980's, core and metro networks are based on the plesiochronous digital hierarchy (PDH) [5]. The digital hierarchy of Europe, Nort...

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“…Example MPLS network (2) Assume that in Fig.18, there is an established LSP R1->R2->R3->R4->R5, and the next hop changes at R2 from R3 to R6. R2 sends a request to R6 with a red thread (re,2,255).…”

Section: Fig18mentioning

confidence: 99%

“…It can also be used with either the ordered downstream on-demand label allocation or ordered downstream unsolicited label allocation [2,3]. The mechanism can also be applicable to loop detection, old path retention, and load-splitting.…”

Section: Introductionmentioning

confidence: 99%

MPLS Loop Prevention Mechanism

Ohba¹,

Katsube²,

Rosen³

et al. 2001

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This paper presents a simple mechanism, based on "threads", which can be used to prevent Multiprotocol Label Switching (MPLS) from setting up label switched path (LSPs) which have loops. The mechanism is compatible with, but does not require, VC merge. The mechanism can be used with either the ordered downstream-on-demand allocation or ordered downstream allocation. The amount of information that must be passed in a protocol message is tightly bounded (i.e., no pathvector is used). When a node needs to change its next hop, a distributed procedure is executed, but only nodes which are downstream of the change are involved.

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MPLS using LDP and ATM VC Switching

Cited by 69 publications

References 5 publications

Performance Evaluation of Triple Play Services Delivery with E2E QoS Provisioning

Performance Evaluation of Triple Play Services Delivery with E2E QoS Provisioning

Recent Developments in and Challenges of Photonic Networking Technologies

MPLS Loop Prevention Mechanism

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