Reducing SCTP's (Stream Control Transmission Protocol) Time-to-complete by Manipulation of Its Retransmission Time Out Minimum PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Reducing SCTP's (Stream Control Transmission Protocol) Time-to-complete by Manipulation of Its Retransmission Time Out Minimum PDF full book. Access full book title Reducing SCTP's (Stream Control Transmission Protocol) Time-to-complete by Manipulation of Its Retransmission Time Out Minimum by Eduardo Gonzalez Guerra. Download full books in PDF and EPUB format.
Author: Eduardo Gonzalez Guerra
Publisher:
ISBN:
Category : Computer networks
Languages : en
Pages : 156
Get Book Here
Book Description
The Stream Control Transmission Protocol (SCTP) is a relatively young transport protocol that was originally designed to transfer SS7 signaling messages over packet switched networks but has since been standardized for general use. It provides many attractive characteristics not found in current dominant protocols like User Datagram Protocol (UDP) and Transmission Control Protocol (TCP) and shows promising performance metrics. This thesis focuses on SCTP's retransmission mechanisms and how they're affected by network conditions, providing insight into optimization opportunities. For this purpose a research platform is presented that enables rapid prototyping of new algorithms and fast turnover of performance data. The platform is then used to verify previous SCTP research and will be used to reduce the often large learning curve of Linux Kernel development. Finally we present a novel algorithm for dynamically determining the optimum Retransmission Time Out Minimum (RTOmin) value of an SCTP association that significantly improves performance while avoiding spurious retransmissions.
Author: Eduardo Gonzalez Guerra
Publisher:
ISBN:
Category : Computer networks
Languages : en
Pages : 156
Get Book Here
Book Description
The Stream Control Transmission Protocol (SCTP) is a relatively young transport protocol that was originally designed to transfer SS7 signaling messages over packet switched networks but has since been standardized for general use. It provides many attractive characteristics not found in current dominant protocols like User Datagram Protocol (UDP) and Transmission Control Protocol (TCP) and shows promising performance metrics. This thesis focuses on SCTP's retransmission mechanisms and how they're affected by network conditions, providing insight into optimization opportunities. For this purpose a research platform is presented that enables rapid prototyping of new algorithms and fast turnover of performance data. The platform is then used to verify previous SCTP research and will be used to reduce the often large learning curve of Linux Kernel development. Finally we present a novel algorithm for dynamically determining the optimum Retransmission Time Out Minimum (RTOmin) value of an SCTP association that significantly improves performance while avoiding spurious retransmissions.
Author: Victor C.M. Leung
Publisher: CRC Press
ISBN: 146656699X
Category : Computers
Languages : en
Pages : 241
Get Book Here
Book Description
Although multihomed communication is a rapidly emerging trend for next generation networks, no known book explores multihomed communication with the Stream Control Transmission Protocol (SCTP). Filling this void, Multihomed Communication with SCTP (Stream Control Transmission Protocol) explains this innovative feature that allows an endpoint to sim
Author: Randall R. Stewart
Publisher: Addison-Wesley Professional
ISBN:
Category : Computers
Languages : en
Pages : 394
Get Book Here
Book Description
CD-ROM contains: Open source code needed for user space implementation of SCTP presented in text
Author: Sagun Khatri
Publisher: LAP Lambert Academic Publishing
ISBN: 9783846587089
Category :
Languages : en
Pages : 56
Get Book Here
Book Description
In this book we have shown what others have done in regard to enhancing SCTP's retransmission time-out performance, and how their approaches are different from ours. We have also shown how the Adaptive RTO algorithm helps improve the SCTP's performance in contrast to the existing implementation. Significant amount of data were gathered in order to show that we have improved the transfer rate in SCTP by about 5%, in the scenario where the Adaptive RTO algorithm is implemented. We have been vigilant in making sure the Adaptive RTO algorithm does not unnecessarily clog network's bandwidth, and that the current implementation of RTO MIN can be safely replaced with the Adaptive RTO algorithm. Furthermore, we have done extensive testing of the Adaptive RTO algorithm in respect to multiple scenarios.We have also shown that the Adaptive RTO algorithm does not clog network's bandwidth under any conditions. This is an evolutionary research. This book does not solve all the problems but sets up additional studies and hypothesis.
Author: Jagdish Kumar Gopalakrishnan
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
ABSTRACT: In the end, we prove that by having the multirouting, SCTP performs better in terms of higher rate of data transmission.
Author: Zhiyuan Yin
Publisher:
ISBN:
Category :
Languages : en
Pages :
Get Book Here
Book Description
In this paper, we propose an early retransmission scheme to improve TCP's performance in delivering time-sensitive media. Our extensive ns2 simulations show significant improvement. When integrated into a traditional TCP variant, namely TCP-SACK, the early retransmission scheme can substantially reduce the latency caused by retransmission timeout. As a result, it can help TCP-SACK achieve a considerably higher success rate in delivering real time media. Early Retransmission also enhances the performance of a delay-based TCP variant, namely PERT. Furthermore, we also explore the improvement brought by employing a fine-grained retransmission timer, and compare it with ER. We find out that ER outperforms the fine grained timer in a variety of conditions and the combination of the two can further improve performance.
Author: Randall R. Stewart
Publisher:
ISBN: 9787900643957
Category : Stream Control Transmission Protocol (Computer network protocol)
Languages : en
Pages : 351
Get Book Here
Book Description
责任者译名:斯图尔特。
Author: Peter B. Danzig
Publisher:
ISBN:
Category : Data transmission systems
Languages : en
Pages : 9
Get Book Here
Book Description
We derive expressions for remotes procedure call (RPC) retransmission timeout values that minimize the weighted sort of total elapsed time, operating system kernel costs, and network charges. Currently we select RPC retransmission timeouts to minimize network utilization, an operating point chosen with our networks' low bandwidth in mind. When public utilities provided digital service becomes popular, we will routinely make requests to servers across town and across nation and we will pay for each message that we send. These networks may offer various grades of service, each with different loss and delay characteristics. In such an environment, choosing the retransmission timeout and grade of service that minimize our costs is not obvious. Our approach, illustrated with a simple RPC algorithm, can be applied to other remote invocation mechanisms. We can incorporate the expression for the optimal retransmission timeout that our approach generates into the communication's software of distributed operating
Author: Imtiaz Ali Halepoto
Publisher:
ISBN: 9781361032121
Category :
Languages : en
Pages :
Get Book Here
Book Description
This dissertation, "Scheduling and Flow Control in CMT-SCTP" by Imtiaz Ali, Halepoto, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Stream Control Transmission Protocol (SCTP) is a reliable transport layer protocol that supports multihoming. An extension of the SCTP that supports simultaneous data transfer over multiple paths is called Concurrent Multipath Transfer (CMT-SCTP), which can achieve an aggregated transmission throughput greater than that of a single path. The performance of CMT-SCTP in multipath networks with dissimilar path performance characteristics (PPCs) is challenging, especially when operating under the constraint of a small buffer. A problem arises when the fair round robin scheduling allows the paths of lower PPCs (slow paths) to affect the overall transmission efficiency due to the out-of-sequence outstanding data at the receiver. Data along the slow and fast paths occupy the shared receiver buffer while waiting for the out-of-sequence data, which causes performance degradation. Therefore, an intelligent scheduling of data transmissions as well as a proper flow control are necessary for efficient data transfer. I propose a flow control technique (CMT-RTTA), which logically divides a buffer by destination and in accordance with the corresponding RTT (round trip time). A destination with a shorter RTT will be allowed to occupy more buffer space than those with a longer RTT. With buffer splitting, destinations with shorter RTTs are allowed to receive their data first. I also propose an algorithm for scheduling data transmissions based mainly on the outstanding bytes (CMT-OUT). Firstly, CMT-OUT transmits data packets to the destinations that are ranked by a proposed Destination Selection Value (DSV) and only if the congestion and flow control allows the transmission. Secondly, the algorithm updates the path quality (PQU) after a successful transmission, which is a measure of how preferable the current destination should be selected in the next round. The third technique (OUT-BD), I propose is intended for heterogeneous networks having a higher dissimilarity among the paths. For that, I use CMTOUT for scheduling of data at the sender. For the flow control, the technique first selects a good path based on RTT and bandwidth. For the assumed good path, the sender is allowed to send data as long as the buffer space is available. For the other paths, if the transmission is allowed, the buffer size is intentionally delimited by the one-way bandwidth-delay-product (OWBDP). This technique is designed for those scenarios where higher OWBDP is because of the longer propagation delay. I established a real Internet testbed setup, which covers a two-path and a four-path network for testing all of the proposed techniques. The experiments show that CMT-RTTA and CMT-OUT improved the throughput of CMT-SCTP on average by 14% and 21% respectively when the maximum bandwidth dissimilarity is applied. Under the same scenario, the throughput improvement on average by OUT-BD is 59%. The mechanism in CMT-SCTP to handle the delay dissimilarity on a simple two-path scenario is very efficient; in the experiments on a slightly more complex four-path scenario, CMT-RTTA, CMT-OUT and OUT-BD improved the throughput by 26%, 54% and 41%, respectively. DOI: 10.5353/th_b5446482 Subjects: Stream Control Transmission Protocol (Computer network protocol)
Author: Behrouz A. Forouzan
Publisher: McGraw-Hill Companies
ISBN:
Category : TCP/IP (Computer network protocol)
Languages : en
Pages : 988
Get Book Here
Book Description
This comprehensive text teaches students and professionals who have no prior knowledge of TCP/IP everything they need to know about the subject. It uses many figures to make technical concepts easy to grasp, as well as numerous examples, which help tie the material to the real world.
