US 11,683,268 B2
Switch device, communication control method and recording medium
Akihito Iwata, Osaka (JP); Takeshi Hagihara, Yokkaichi (JP); and Yasuhiro Yabuuchi, Yokkaichi (JP)
Assigned to Sumitomo Electrical industries, Ltd., Osaka (JP); AutoNetworks Technologies, Ltd., Yokkaichi (JP); and Sumitomo Wiring Systems, Ltd., Yokkaichi (JP)
Appl. No. 16/499,767
Filed by Sumitomo Electric Industries, Ltd., Osaka (JP); AUTONETWORKS TECHNOLOGIES, LTD., Yokkaichi (JP); and SUMITOMO WIRING SYSTEMS, LTD., Yokkaichi (JP)
PCT Filed Mar. 27, 2018, PCT No. PCT/JP2018/012539
§ 371(c)(1), (2) Date Sep. 30, 2019,
PCT Pub. No. WO2018/181378, PCT Pub. Date Oct. 4, 2018.
Claims priority of application No. JP2017-072281 (JP), filed on Mar. 31, 2017.
Prior Publication US 2020/0106704 A1, Apr. 2, 2020
Int. Cl. H04L 45/74 (2022.01); H04L 45/00 (2022.01); H04L 45/52 (2022.01); H04L 67/12 (2022.01); H04L 45/745 (2022.01)
CPC H04L 45/72 (2013.01) [H04L 45/52 (2013.01); H04L 67/12 (2013.01); H04L 45/745 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A switch device for relaying data in an on-vehicle network, comprising:
a switch section for performing a first relaying processing as a layer 2 switch for a low-order relay frame that is a frame between on-vehicle devices belonging to a same subnet, and
a processing section for performing a second relay processing as a layer 3 switch via the switch section for a high-order relay frame that is a frame between on-vehicle devices belonging to subnets different from each other, wherein
the switch section transmits the low-order relay frame at a constant transmission speed, and
in the case that a first high-order relay frame and a second high-order relay frame that are frames to be subjected to the second relay processing are present in the processing section, the processing section performs adjustment processing to set the transmission speeds of the first high-order relay frame and the second high-order relay frame to a first speed in the case that the transmission source addresses of the first high-order relay frame and the second high-order relay frame are same, and to set the transmission speeds of the first high-order relay frame and the second high-order relay frame to a second speed that is lower than the first speed in the case that the transmission source addresses of the first high-order relay frame and the second high-order relay frame are different.