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Session Initiated Protocol (SIP) and Message-Based Load Balancing (MBLB)
White Paper Between servers, where the VLAN, TCP port, and IP variations are limited, the ephemeral ports are constantly being pushed and overrun. At the service provider level, the number of VLAN, TCP (or UDP) port, and IP triplet combinations is affecting... [10 Jul 2008]
Jointly Coordinating ECN and TCP for Rapid Adaptation to Varying Bandwidth
White Paper Simulations indicate that the ECN-mod protocol is better than ECN-NewReno in exploiting rapid variations in the available bandwidth. By making routers mark packets in a much more aggressive manner, the authors are able to achieve fast backoff in... [14 Jan 2008]
TCP-Friendly Internet Video With Smooth and Fast Rate Adaptation and Network-Aware Error Control
White Paper The adopted weighting scheme enables the response in a fast manner only for distinct network variations so that the overall network utilization is improved while sustaining end-to-end video quality. First, a new rate adaptation mechanism called the... [14 Jan 2008]
Utilizing Characteristics of Last Link to Improve TCP Performance
White Paper The variations in link characteristics present different problems to TCP and enhancement of TCP performance over these links remains an active area of research. TCP, perhaps the most widely used transport protocol, was designed for wired links and... [08 Jan 2008]
Improving TCP Throughput in 802.11 WLANs With High Delay Variability
White Paper This paper shows the negative impact of large delay variations in a mixed wired and 802.11 network scenario with bursty errors, and propose an adaptive algorithm that adds delay to packets in order to prevent spurious timeouts. [26 Dec 2007]
On the Stationarity of TCP Bulk Data Transfers
White Paper While the Internet offers a single best-effort service, the paper remarks that core backbones are in general over provisioned, end users have increasingly faster access and CDN and p2p solutions can mitigate network variations. [26 Dec 2007]
A Uni?ed Framework for Modeling TCP-Vegas, TCP-SACK, and TCP-Reno
White Paper This paper presents a general analytical framework for the modeling and analysis of TCP variations. The framework allows the modeling of multiple variations of TCP, including TCP-Vegas, TCP-SACK, and TCP-Reno, under general network situations. [19 Dec 2007]
A Passive State-Machine Approach for Accurate Analysis of TCP Out-of-Sequence Segments
White Paper One of the crucial factors that limit the accuracy of prior tools is that these do not incorporate variations across TCP implementations (for different operating systems) that have different parameters (e.g.timer granularity, minimum RTO... [19 Dec 2007]
The Impact of Delay Variations on TCP Performance
White Paper This paper studies to which extent variable delays in mobile networks affect TCP performance. The main contribution is a simple analytical model that determines the TCP timeout duration from given network parameters. [05 Dec 2007]
Modeling the Effect of Short-Term Rate Variations on TCP-Friendly Congestion Control Behavior
White Paper TCP is the dominant transport protocol in Internet. To maintain stability of the Internet, flows other than TCP must be "friendly" to TCP flows, or share network bandwidth fairly with TCP traffic. Usually a flow is claimed to be TCP-friendly when... [05 Dec 2007]
The Sensitivity of TCP to Sudden Delay Variations in Mobile Networks
White Paper Sudden delay variations, which are not uncommon in mobile networks, may degrade the performance since they may cause spurious TCP timeouts. This paper studies the impact of variable transmission delays on the Transmission Control Protocol (TCP). [05 Dec 2007]
TCP Packet Control for Wireless Networks
White Paper They improve TCP performance in wireless networks with packet delay variations and long sudden packet delays. The ns-2 simulation results show that the proposed algorithms reduce the adverse effect of spurious fast retransmits and timeouts and... [05 Dec 2007]
A Stochastic Model of TCP and Fair Video Transmission
White Paper Unlike many other models, this model accounts for variations in latency and loss probability. A stochastic model of TCP is developed. Other new insights include the effect of the rate of change of the latency on the performance of TCP. [05 Dec 2007]
Understanding the Behavior of TCP for Realtime CBR Workloads
White Paper A key insight gained is that the use of smaller than MSS-sized packets in CBR workloads can exploit the TCP's ACK counting mechanism thereby limiting the delay impact of congestion window variations. This paper examines the feasibility of sending... [06 Nov 2007]
A Unified Framework for Modeling TCP-Vegas, TCP-SACK, and TCP-Reno
White Paper A general analytical framework is presented for the modeling and analysis of TCP variations. The framework is quite comprehensive and allows the modeling of multiple variations of TCP, i.e. TCP-Vegas, TCP-SACK, and TCP-Reno, under very general... [30 Oct 2007]
