Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 25 for “"DiffServ"”.
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Network level performance of differentiated services (diffserv) networks
The Differentiated Services (DiffServ) architecture is a promising means of providing Quality of Service (QoS) in Internet. In DiffServ networks, three service classes, or Per-hop Behaviors (PHBs), have been defined: Expedited Forwarding (EF), Assured Forwarding (AF) and Best Effort (BE). In this …
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Bandwidth broker for advance resource reservation in diffserv networks
This thesis presents the work on bandwidth broker (BB) design which offers scalable and flexible resource reservation capability to Differentiated Services networks. Unlike traditional BB designs, which limit reservations to within a single administrative domain and for immediate usage, this work …
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Virtualized dynamic resource allocation algorithm for the internet Diffserv domains
The Differentiated Services (DiffServ) architecture has been proposed for providing different levels of service to the Internet Protocol (IP) traffic. Current discussions in the DiffServ networks are focused on managing resources dynamically according to the traffic conditions of the DiffServ …
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An investigation into buffer management mechanisms for the Diffserv assured forwarding traffic class
One of the service classes offered by Diffserv is the Assured Forwarding (AF) class. Because of scalability concerns, IETF specifications recommend that microflow and aggregate-unaware active buffer management mechanisms such as RIO (Random early detecLion with ln/Out-ofprofile) be used in the core …
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Design of traffic shaper / scheduler for packet switches and DiffServ networks : algorithms and architectures
… algorithms in the high speed packet switches and DiffServ networks are studied, and the intelligent implementation schemes are proposed for them.
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Una propuesta de arquitectura MPLS/DiffServ para proveer mecanismos de calidad de servicio (QOS) en el transporte de la telefonía IP
… IP), utilizando una arquitectura basada en MPLS/DiffServ para proveer calidad de servicio. Se pretende que esta arquitectura proporcione eficiencia, fiabilidad, escalabilidad y disponibilidad orientada a la comunicación de voz sobre redes IP, proporcionando un servicio de forma transparente y con …
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An MPLS-based Quality of Service Architecture for Heterogeneous Networks
… advantages of the IP differentiated services (DiffServ) architecture. This architecture is constructed in such a way that MPLS interacts with DiffServ in the backbone networks while performing ATM-like QoS enforcement in the periphery of the networks. The architecture supports traffic …
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Performance study on a dual prohibition Multiple Access protocol in mobile Ad Hoc and Wireless Mesh networks
… and support for differentiated services (DiffServ), are presented in detail. We conducted a thorough simulation study on DPMA protocol from several aspects. First, we conduct simulations to observe the effects of binary competition number (BCN), unit slot length and safe margin on the …
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Scalable Bandwidth Management in Software-Defined Networks
… that emerge in virtualized environments. DiffServ Assured Forwarding is chosen as a QoS architecture for implementation. The bandwidth management scalability in SDN is proved based on throughput analysis by considering two conditions i.e 1) Per-flow QoS operation and 2) QoS by using …
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A novel pricing approach to support QoS in 3G networks
… approach that introduces service profiles into DiffServ-enabled 3G networks, in which the terriff rates depend on the degree of congestion in the network. The study proposes a hybrid pricing scheme that incorporates characteristics of different pricing proposals to achieve the goals of pricing …
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Enhancing QoS provisioning and granularity in next generation internet
… a new Endpoint Admission Control scheme for Diffserv networks, referred to as Explicit Endpoint Admission Control (EEAC), is proposed, in which the admission control decision is made by the end hosts based on the end-to-end performance of the network. A novel concept, namely the service …
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Performance evaluation of AAL2 over IP in the UMTS access network Iub interface
… QoS, To provide QoS, MPLS integrated with DiffServ is proposed to support different QoS levels to different classes of service and fast forward the IP packets within the lub interface. To evaluate the performance of AAL2!IP in the Iub interface, a test-bed was created.
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Qualidade de serviço em redes IP serviços diferenciados
… QoS, mais especificamente voltada ao mecanismo DiffServ. Também são destacados os mecanismos de QoS para redes IP do fornecedor Cisco Systems, o qual possui a maior gama de mecanismos já implantados pelos fornecedores. Por fim, identificamos as características necessárias para participar do …
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Pokročilé modelování chování protokolu SNMP v simulačním prostředí OPNET Modeler
… Modeler. Pro implementaci byla vybrána databáze DiffServMIB, která popisuje komponenty technologie rozlišovaných služeb. Diplomová práce obsahuje podrobný popis možností využití databáze DiffServMIB pro řízení zpracování provozu a návrh modelu, který popisuje diferencované zpracování dat ve …
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QoS provisioning in multimedia streaming
… network traffic. The Differentiated Service (DiffServ) model is a less complex and more scalable solution for providing QoS to IP as compared to the Integrated Service (IntServ) model. We propose to transport MPEG frames through various service classes of DiffServ according to the MPEG video …
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Enhancing end-to-end quality of service provisioning in wireless ad hoc networks using service vectors
… of the current Differentiated Services (DiffServ) network architecture. This thesis explores the application of this concept on wireless ad hoc networks and provides a cross-layer architecture based on the combination of delay-bounded wireless link level scheduling and the network layer …
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Simulace síťového prvku v prostředí Matlab
… je venovaná najperspektívnejšiemu štandardu DiffServ. Obsahuje časti venované architektúre, značkovaniu paketov, kódovému slovu DSCP a záver kapitoly je venovaný spôsobom správania počas preskoku a to prednostné odoslanie EF a technike zaručeného odoslania AF. Tretia kapitola uvádza prehľad …
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Statistical Analysis of ATM Call Detail Records
… (IP) networks employing Differentiated Services (DiffServ). This work shows a method to generically classify traffic in an ATM network such that capacity planning may be possible. These methods are generally applicable to other networks that support dynamically allocated resources. In this …
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IP-based virtual private networks and proportional quality of service differentiation
… granularity compromises that of IntServ and Diffserv, emerges as a potential solution. The investigation of its claimed capability of providing the predictable and controllable QoS differentiation is then conducted. With respect to the loss rate differentiation, the "packet shortage" …
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Quality of service technologies for multimedia applications in next generation networks
… These issues have been addressed in this thesis. DiffServ-aware Traffic Engineering (DS-TE) has been considered as reference architecture for the deployment of the quality management systems. It represents the most advanced technology to accomplish either network scalability and service …
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