Ask Sendai

China successfully launched the world’s first 6G satellite. The satellite uses Terahertz waves that could send data at speeds several times faster than 5G.12 other Earth-observing satellites were aboard the rocket. On November 6, China successfully launched a Long March 6 rocket and sent a payload of 13 satellites into orbit. Among them was what has been described as “the world’s first 6G satellite”, according to BBC. The problem? The rest of the world is still several years away from agreeing what 6G will even be.

The company is expanding its US network in a big way, and it’s turned to two edge data center startups for help. In January, Cloudflare, which helps companies make their web services run faster and be more secure – and which more recently started to use its global data center network to also provide cloud computing services – said it would expand the network in the US with three dozen new locations.

Wi-Fi Alliance® is extending Wi-Fi CERTIFIED 6™ into 6 GHz to ensure Wi-Fi users can quickly benefit from additional capacity, wider channels, and less congested spectrum. Certification for Wi-Fi 6E – the brand name for Wi-Fi 6 devices operating in 6 GHz – will be available in early 2021. Wi-Fi Alliance has been working to prepare interoperability certification as soon as Wi-Fi 6E devices enter the market so 6 GHz benefits can reach consumers, device manufacturers, and service providers more quickly.

Undersea cables are responsible for moving data between countries and continents at high speeds, making everything from photo sharing to financial transactions possible. These cables use fiber optics to move data at high speeds to land, where the data is then conveyed via fiber optics to homes and businesses. Yet, despite the billions of people relying on the data moved by undersea cables, there are only about 380 of them worldwide as of 2019, according to CNN estimates, though they span more than 745,000 miles—or more than three times the distance to the moon.

Kubernetes networking design can be intimidating, especially when you are the one to make decisions for cluster-level network choices. In this session, we will discuss how these choices will affect cluster routing and load balancing, focusing on KubeProxy modes(iptables vs IPVS) and network solutions. The main purpose of this blog is to help Kubernetes users to get comfortable with K8S major network components, common usage patterns, and corresponding troubleshooting tools.

Open Virtual Network (OVN) is a subproject of Open vSwitch (OVS), a performant, programmable, multi-platform virtual switch. OVN adds to the OVS existing capabilities the support for overlay networks by introducing virtual network abstractions such as virtual switches and routers. Moreover, OVN provides native methods for setting up Access Control Lists (ACLs) and network services such as DHCP.Many Red Hat products, such as Red Hat OpenStack Platform and Red Hat Virtualization, are now using OVN, andRed Hat OpenShift Container Platform will be using OVN soon.