Flow table update is an issue that cannot be ignored in software-defined networks(SDN). Aiming at the problem of SDN flow table update consistency, a flow table update scheme based on timing and set is proposed. The classification of switches is separated by new and old paths, and the updating of the classification set is in accordance with a certain order. To ensure the transmission, the updating of the new flow table is realized before the deletion of the old one. Simulation experiments show that this scheme realized the consistency of the SDN flow table update under the same network speed. At the same time, this scheme showed the relatively short update time, the comparably low control load, and the reduction of the occupation space of switch flow table to ensure the better update effect.
LIU Zhenpeng
,
LI Ming
,
WANG Xinpeng
,
REN Shaosong
,
LI Xiaofei
. Update strategy of SDN flow table based on time series and sets[J]. Journal of Hebei University(Natural Science Edition), 2020
, 40(4)
: 427
-432
.
DOI: 10.3969/j.issn.1000-1565.2020.04.014
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