Performance Impacts of Multi-Scaling in Wide-Area TCP/IP Traffic
نویسندگان
چکیده
Recent measurement and simulation studies have revealed that wide area network traffic has complex statistical—possibly multifractal—characteristics on short timescales, and is self-similar on long timescales. In this paper, using measured TCP traces and queueing simulations, we show that the fine timescale features can affect performance substantially at low and intermediate utilizations, while the coarse timescale self-similarity is important at intermediate and high utilizations. We outline an analytical method for estimating performance for traffic that is self-similar on coarse timescales and multifractal on fine timescales, and show that the engineering problem of setting safe operating points for planning or admission controls can be significantly affected by fine timescale fluctuations in network traffic. Keywords— Wide Area TCP traffic, Multi-fractal Scaling, Performance Analysis
منابع مشابه
Performance Modeling of TCP/IP in a Wide-Area Network
We examine the problem of evaluating the performance of TCP connections over wide area networks. Our approach combines experimental and analytic methods, and proceeds in three steps. First, we have used measurements taken over Renater to provide a basis for the chosen analytic model. This model turns out to be a shared bottleneck model, in which a finite buffer queue is shared by two connection...
متن کاملAn Empirical Workload Model for Driving Wide-Area TCP/IP Network Simulations
Abstract We present an artificial workload model of wide-area internetwork traffic. The model can be used to drive simulation experiments of communication protocols and flow and congestion control experiments. The model is based on analysis of wide-area TCP/IP traffic collected from one industrial and two academic networks. The artificial workload model uses both detailed knowledge and measured...
متن کاملTitle: Tbe and Tcp/ip Traffic Distribution: Atm Forum Technical Working Group Members (traffic Management)
The effect of TCP traffic over ATM ABR is studied with the ERICA switch algorithm. ABR implements its rate-based traffic control at switches (via ER algorithms like ERICA) and at sources (via source rules, such as, Rule 6, which uses TBE parameter). TCP implements its own traffic controls via slow start window control. We study the interaction between the two mechanisms. In particular, this con...
متن کاملImplementation of TCP/IP Protocols in Wireless Sensor Networks
Wireless Sensor Networks (WSNs) are large networks composed of small sensor nodes with limited computer resources capable for gathering, data processing and communicating. WSNs usually can not operate in isolation, i.e. they have to be connected to some Wide Area Network (WAN). As the Internet protocol becomes de-facto standard for WANs, it is a challenge now to connect WSNs to WAN through TCP/...
متن کاملEvaluating Multipath TCP Resilience against Link Failures
Standard TCP is the de facto reliable transfer protocol for the Internet. It is designed to establish a reliable connection using only a single network interface. However, standard TCP with single interfacing performs poorly due to intermittent node connectivity. This requires the re-establishment of connections as the IP addresses change. Multi-path TCP (MPTCP) has emerged to utilize multiple ...
متن کامل