ASON and GMPLS—Overview and Comparison

Tomic, Slobodanka; Statovci-Halimi, Brikena; Halimi, A.; Muellner, Waltraud; Fruehwirth, Juergen

doi:10.1023/b:pnet.0000012432.77218.10

Cited by 19 publications

(6 citation statements)

References 11 publications

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“…It also provides effective response to failures by dynamically rerouting the traffic, and supports dynamic bandwidth assignment on the actual demand. Therefore, the control plane intelligence is considered one of the most promising transport network features, as it can bind different technologies conglomerated evolutionary in transport networks, e.g., IP routers, multiprotocol label switches (MPLS), dense wavelength division multilplex (DWDM) systems, synchronous digital hierarchy (SDH) systems, opto-electronic cross-connects (OXCs), optical add-drop multiplexers (OADMs), or photonic cross connects (PXCs) (Tomic, 2004).…”

Section: Automatic Transport Networkmentioning

confidence: 99%

Active optical networks: traffic management

Franzl

Statovci-Halimi

2008

Elektrotech. Inftech.

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Multi protocol label switching (MPLS) allows differentiation among individual flows and managing their distribution among resources. Control plane ''intelligence'' promises lowered cost, improved operation, effective response to failures, and dynamic bandwidth assignment to actual demand. Whether carrier grade Ethernet (CGE) over a dynamic optical infrastructure can substitute ATM over SDH essentially depends on the features actually integrated.

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Section: Automatic Transport Networkmentioning

confidence: 99%

Active optical networks: traffic management

Franzl

Statovci-Halimi

2008

Elektrotech. Inftech.

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“…Netzsteuerungstechnik Generalized Multi Protocol Label Switching GMPLS vorangetrieben (Tomic, 2004). Dabei ü bernimmt man teilweise bewä hrte Konzepte aus der klassischen Vermittlungstechnik und fü hrt eine Steuerungsebene (Control Plane) ein, ü ber die Anwender bzw.…”

Section: Fü R Beide Ziele Wird Die Entwicklung Und Einfü Hrung Dynamiunclassified

Entwicklungslinien und Trends des Internets

Eberspächer

2006

Elektrotech. Inftech.

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Das Internet ist ein wesentlicher Pfeiler fü r die weitere Entwicklung der Gesellschaft, fü r technische Innovationen und fü r die wirtschaftliche Wertschö pfung. Auf Basis der Internettechnologie wachsen die bisher dienstspezifischen Netze fü r Sprache, Daten, Mobilkommunikation und Verteildienste zunehmend zusammen. Dieser Transformationsprozess stellt zahlreiche neue Anforderungen an die Architektur und die Technologien des Internet, z. B. erhö hte Geschwindigkeit, ubiquitä re Mobilitä t, hohe Zuverlä ssigkeit und Informationssicherheit. Zur effizienten und raschen Bereitstellung neuartiger Dienste, Anwendungen und digitaler Inhalte wird zudem eine hö here Systemflexibilitä t benö tigt. Der Beitrag gibt eine Ü bersicht ü ber aktuelle Entwicklungstrends und Forschungsfelder im Umfeld des Internets und dessen Technologien. Er skizziert die Innovationen der unteren Protokollschichten (optische und drahtlose Netze), dezentrale Netz-und Dienstkonzepte wie Ad Hoc Networks, Peer-to-Peer-Kommunikation und Grid Computing und geht auf Dienstkonzepte wie Web Services und Service Oriented Architecture ein. Schlü sselwö rter: Internet; Konvergenz; NetztechnologieInternet trends and evolution.The Internet is a key to the future development of our societies, and for innovation and for creation of added value in economy. Based on the Internet technology, the up to now service specific networks for voice, data and broadcasting services are more and more converging. This transformation process puts a number of new requirements on the architecture and technologies of the Internet. These are e.g. increase of speed, ubiquitous mobility, high availability and security. The efficient and fast provisioning of new services, applications and digital content requires more system flexibility. The contribution gives an overview on current trends in Internet research and development. It describes the innovations of the lower layers (optical and wireless transport), decentralized networking and service architectures (Ad Hoc Networks, Peer-to-Peer communication and Grid Computing) and outlines concepts like Web Services and Service Oriented Architecture.

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“…In these networks, a wavelength channel, called a lightpath, is established from a source node to a destination node for data transmission [1,2,9]. Related to WDM networks, progress has been made in Generalized Multi-Protocol Label Switching (GMPLS) [10] and Automatic Switched Optical Networks (ASONs) [11]. These new architectures realize communications over heterogeneous and multi-domain optical networks.…”

Section: Introductionmentioning

confidence: 99%

Virtual Fiber Configuration for Dynamic Lightpath Establishment in Large-scaled Optical Networks

2006

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Recently, progress has been made in the Generalized Multi-Protocol Label Switching (GMPLS) and Automatic Switched Optical Networks (ASON) standardizations. These technologies realize construction of large-scaled optical networks, interconnections among single-domain Wavelength Division Multiplexing (WDM) networks, and direct communication over multi-domain WDM networks. Meanwhile, it is known that the topology of the Internet exhibits the power-law attribute. Since the topology of the Internet, which is constructed by interconnecting ASs, exhibits the power-law, there is a possibility that large-scale WDM networks, which are constructed by interconnecting WDM networks, will also exhibit the power-law attribute. One of the structural properties of a topology that adheres to the power-law is that most nodes have just a few links, although some have a tremendous number of them. Another property is that the average distance between nodes is smaller than in a mesh-like network. A natural question is how such a structural property performs in WDM networks.In this paper, we first investigate the property of the power-law attribute of physical topologies for WDM networks. We compare the performance of WDM networks with mesh-like and power-law topologies, and show that links connected to high-degree nodes are bottlenecks in power-law topologies. To relax this, we introduce a concept of virtual fiber, which consists of two or more fibers, and propose its configuration method to utilize wavelength resources more effectively. We compare performances of power-law networks with and without our method by computer simulations. The results show that our method reduces the blocking probabilities by more than one order of magnitude.

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ASON and GMPLS—Overview and Comparison

Cited by 19 publications

References 11 publications

Active optical networks: traffic management

Active optical networks: traffic management

Entwicklungslinien und Trends des Internets

Virtual Fiber Configuration for Dynamic Lightpath Establishment in Large-scaled Optical Networks

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