Titlebook: Quality of Service in Multiservice IP Networks; Second International Marco Ajmone Marsan,Giorgio Corazza,Aldo Roveri Conference proceedings

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A QoS Routing Mechanism for Reducing the Routing Inaccuracy Effects available link bandwidth, network state databases must be frequently updated. This updating process generates an important signaling overhead. Reducing this overhead implies having inaccurate routing information, which may cause both non-optimal path selection and a call-blocking increase. In order

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Stability and Scalability Issues in Hop-by-Hop Class-Based RoutingC-QoSR). The main contribution of this paper is the evaluation of the scalability and stability characteristics of the protocol on an experimental test-bed. The control of protocol overhead is achieved through a hybrid approach of metrics quantification and threshold based diffusion of routing messa

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Network Independent Available Bandwidth Sampling and Measurementks, where methods to guarantee and keep track of the bandwidth (eg, weighted fair queuing scheduling) do not work well, for example the Internet. In this paper we are dealing with an available bandwidth sampling technique based on the observation of packet time dispersion in a packet train or pair.

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Less than Best Effort: Application Scenarios and Experimental Resultsan Best Effort (LBE) service on a wide area scale. LBE is a Per-Domain Behaviour based on the Differentiated Services Quality of Service architecture. We present a brief overview of the evolution of the case for LBE, through the IETF DiffServ WG and the Internet2 QBone project, and then describe som

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ORBIT

End-to-End QoS Supported on a Bandwidth Brokerice is foreseen as a solution to QoS provisioning in core networks due to its scalability characteristic. However, at the access IntServ is the solution most adequate, as it provides QoS to individual traffic flows. Should an end-to-end service model be defined, both service models must be considere

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Multidomain End to End IP QoS and SLA network backbone, which connects more than 30 National Research and Education Networks (NREN). A multidomain Premium IP service, based on the EF PHB, has been specified and implemented for that environment. Its architecture is summarised here and early experimental results are reported.

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Dimensioning Models of Shared Resources in Optical Packet Switching Architectureschnique to solve the packet contention problem and all of them share the wavelength converters needed in order to wavelength shift the arriving packets. In particular two architectures are considered: the Shared Per Output Line (.) and the Shared Per Input Line (.) architectures in which the wavelen

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Efficient Usage of Capacity Resources in Survivable MPλS Networks the growth of traffic in optical network, the survivability of the network becomes extremely important. Therefore, an efficient protection mechanism is needed. Shared backup tree lightpath protection is a promising paradigm in MPλS networks because of its fast recovery from single failure and its e

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Performance Evaluation of a Distributed Scheme for Protection against Single and Double Faults for Mrent classes of end-to-end protection, including protection against Single Fault and Dual Fault, with and without sharing of backup bandwidth. Beyond link and node failures we also consider protection against Shared Risk Link Group (SLRG) failure. An interesting feature of the proposed scheme is the