TY - GEN
T1 - Performance evaluation of TCP/IP over time-division multiplexing Ethernet
AU - Otawara, Kana
AU - Yamamoto, Masaaki
AU - Yakoh, Takahiro
PY - 2016/12/21
Y1 - 2016/12/21
N2 - S-TDMA is a concept to realize coexistence of RT (real-time) and non-RT traffic over switched Ethernet by separating them in a time-slot basis. Theoretically, coexistence is achieved even in multi-hop network if precise time synchronization among the all nodes on its communication path. However, since it is technically difficult, the construction of wide-area S-TDMA network was not yet achieved. This paper implemented S-TDMA switch on NetFPGA-1G-CML board with 1 Gbps Ethernet PHY, newly adding a few nanoseconds-level time synchronization and change-mode mechanism to the previously presented implementation. Remarkably, this implementation enabled to examine the degree of throughput deterioration of non-RT with change-mode in one S-TDMA switch. Previous works regarding S-TDMA switch have never researched this issue. From the result of 1 ms period, TCP throughput was 14:65 Mbps when non-RT time-slot occupies 90% of each period. It was the worst value and only 4% of the result when non-RT time-slot occupies 100%. Such value is considered not practical if S-TDMA network is constructed in the real Internet infrastructure. Thus, further approaches to enhance TCP performance are discussed.
AB - S-TDMA is a concept to realize coexistence of RT (real-time) and non-RT traffic over switched Ethernet by separating them in a time-slot basis. Theoretically, coexistence is achieved even in multi-hop network if precise time synchronization among the all nodes on its communication path. However, since it is technically difficult, the construction of wide-area S-TDMA network was not yet achieved. This paper implemented S-TDMA switch on NetFPGA-1G-CML board with 1 Gbps Ethernet PHY, newly adding a few nanoseconds-level time synchronization and change-mode mechanism to the previously presented implementation. Remarkably, this implementation enabled to examine the degree of throughput deterioration of non-RT with change-mode in one S-TDMA switch. Previous works regarding S-TDMA switch have never researched this issue. From the result of 1 ms period, TCP throughput was 14:65 Mbps when non-RT time-slot occupies 90% of each period. It was the worst value and only 4% of the result when non-RT time-slot occupies 100%. Such value is considered not practical if S-TDMA network is constructed in the real Internet infrastructure. Thus, further approaches to enhance TCP performance are discussed.
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U2 - 10.1109/IECON.2016.7793998
DO - 10.1109/IECON.2016.7793998
M3 - Conference contribution
AN - SCOPUS:85010028154
T3 - IECON Proceedings (Industrial Electronics Conference)
SP - 4695
EP - 4700
BT - Proceedings of the IECON 2016 - 42nd Annual Conference of the Industrial Electronics Society
PB - IEEE Computer Society
T2 - 42nd Conference of the Industrial Electronics Society, IECON 2016
Y2 - 24 October 2016 through 27 October 2016
ER -