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Link-disjoint routing strategy can offer a set of reliable alternate paths when the active best path fails. However, simply employing a set of fully disjointed paths may not necessarily result in the efficient network resource utilization in some circumstances, which degrades the performance of the network system under a highly loaded traffic condition. In this study, we propose two heuristic link-disjoint...
Traffic replay tools that generate traffic in order to recreate real traffic scenarios play an important role in network operation. Nowadays, the Internet backbone links are increasing in capacity as well as in transmission speed making trace-based replay difficult. This paper proposes a novel approach to high-speed backbone traffic replaying. We bring out an original granular split of traffic that...
This paper is mainly concerned with end to-end performance from the viewpoint of measurements using active probes. Since probes are merely trains of packets, packet-level modelling and simulation may intuitively appear to be the best solution. However, given the poor scalability of packet-level simulation, modelling of end-to-end paths at the scale defined by NGN is unfeasible. This spawns the problem...
Web services have become an indispensable part of the Internet and the world. We have learned their applicability in every aspects of human life which lead to the huge amount of Web traffic exchanged over the Internet everyday. This excessive popularity is also the cause that led to some troubles. Among them, Flash crowds and Denial of Service (DoS) attacks are the two major concerns for the stability...
This paper introduces a new scheme, called ABshoot, for measuring end-to-end available bandwidth. In ABshoot, we first use an unevenly spaced probe stream, which is statistically constructed based on the knowledge of end-to-end capacity, to quickly identify the turning point within the stream. Then we use evenly spaced probe streams with the probing rates close to the turning point to thoroughly explore...
Recently, the concern about network management and network security has inspired many research topics, among which, research on detecting and identifying anomalies has attracted a lot of interest. In this paper, we propose an anomaly identification method based on traffic flow analysis. The result of the research proves that by assembling some features of traffic flows and calculating some specific...
With the rapid development of the Internet, the P2P (peer-to-peer) technology which is characterized by no utilization of any servers with centralized functions has kept advancing apace. However, the wide use of the P2P application has lead to the illegal file sharing in addition to the rapid growth of network traffic. Thus, it has become an urgent requirement to discriminate the users of P2P file...
HMIPv6 (hierarchical mobile IPv6) protocol introduces MAP (mobility anchor point) which relays all packets between MN (mobile node) and other nodes outside a MAP mobility management area (H. Soliman et al., 2005). This method can reduce the amount of signaling traffic and improve handover frequency. Since very high loads are concentrated in a MAP and the load of MAP possibly influences the communication...
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