US 12,438,818 B2
Periodic flow detection device, delay estimation device, periodic flow detection method and program
Keita Nishimoto, Musashino (JP); Kota Asaka, Musashino (JP); and Hiroshi O, Musashino (JP)
Assigned to NTT, Inc., Tokyo (JP)
Appl. No. 18/562,641
Filed by NTT, Inc., Tokyo (JP)
PCT Filed May 21, 2021, PCT No. PCT/JP2021/019406
§ 371(c)(1), (2) Date Nov. 20, 2023,
PCT Pub. No. WO2022/244254, PCT Pub. Date Nov. 24, 2022.
Prior Publication US 2024/0244004 A1, Jul. 18, 2024
Int. Cl. H04L 12/24 (2006.01); H04L 41/0803 (2022.01); H04L 47/2441 (2022.01); H04L 47/283 (2022.01)
CPC H04L 47/2441 (2013.01) [H04L 47/283 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A periodic flow detection device comprising:
a packet classification unit, including one or more processors, configured to classify packets into a plurality of flows on a basis of information included in acquired packets;
a flow evaluation unit, including one or more processors, configured to evaluate a possibility that each of the plurality of flows is periodically transmitted on a basis of time at which the packets are acquired and the flow evaluation unit is configured to evaluate each of the plurality of flows on a basis of whether or not a packet belonging to the flow is a periodic flow acquired at a predetermined frequency or more, and in a case where the flow is not the periodic flow, an evaluation value is calculated as zero; and
a flow determination unit, including one or more processors, configured to determine, from the plurality of flows, a periodic flow that is a flow to which packets periodically acquired belong on a basis of a result of the evaluation.