TY - GEN
T1 - A TCP Incast Avoidance Method Based on Retransmission Requests from a Client
AU - Kishimoto, Shiden
AU - Osada, Shigeyuki
AU - Tarutani, Yuya
AU - Fukushima, Yukinobu
AU - Yokohira, Tokumi
N1 - Funding Information:
This work was supported by Electronics and Telecommunications Research Institute (ETRI) grant funded by the Korean government and Ulsan Metropolitan City. [19ZS1300
PY - 2019/10
Y1 - 2019/10
N2 - When a standard TCP implementation using minimum retransmission timeout (RTOmin) of 200 ms is used in distributed file systems in data centers, a well-known throughput degradation called TCP Incast occurs, because 200 ms is too large as RTOmin in data centers. In order to avoid TCP Incast, a TCP implementation using a much smaller RTOmin attained by a fine-grained kernel timer has been proposed. However, throughput still decreases in the implementation when the number of servers in distributed file systems is large. In this paper, we propose an improvement method using special acknowledgement packets which enable a client to request servers to retransmit packets in a better timing. Numerical examples obtained by extensive simulation runs show the effectiveness of the improved method.
AB - When a standard TCP implementation using minimum retransmission timeout (RTOmin) of 200 ms is used in distributed file systems in data centers, a well-known throughput degradation called TCP Incast occurs, because 200 ms is too large as RTOmin in data centers. In order to avoid TCP Incast, a TCP implementation using a much smaller RTOmin attained by a fine-grained kernel timer has been proposed. However, throughput still decreases in the implementation when the number of servers in distributed file systems is large. In this paper, we propose an improvement method using special acknowledgement packets which enable a client to request servers to retransmit packets in a better timing. Numerical examples obtained by extensive simulation runs show the effectiveness of the improved method.
KW - Data Center Net-works
KW - Incast
KW - TCP
KW - Throughput
UR - http://www.scopus.com/inward/record.url?scp=85078309489&partnerID=8YFLogxK
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U2 - 10.1109/ICTC46691.2019.8939877
DO - 10.1109/ICTC46691.2019.8939877
M3 - Conference contribution
AN - SCOPUS:85078309489
T3 - ICTC 2019 - 10th International Conference on ICT Convergence: ICT Convergence Leading the Autonomous Future
SP - 153
EP - 158
BT - ICTC 2019 - 10th International Conference on ICT Convergence
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th International Conference on Information and Communication Technology Convergence, ICTC 2019
Y2 - 16 October 2019 through 18 October 2019
ER -