Arrcus looks to 400G future, Tonga stuck on satellite connection, and Linux Foundation’s new edge computing effort By The Register Jan 28, 2019, 4:18 am Plus more of the week’s networking nuggets Roundup Relative newcomer Arrcus wants to help networking upstarts follow the industry’s juggernauts into the 400Gbps Ethernet world with the latest update to its year-old ArcOS network operating system.…