re6st was created to fix problems of current Internet through an IPv6 overlay network.
In today's Internet, latency is usually sub-optimal and telecommunication providers provide unreliable transit. There are lots of network cuts. DPI systems introduce sometimes data corruption in basic protocols (ex. TCP). Governments add censorship and bogus routing policies, in China for example. There is no way to ensure that two points A and B on the Internet can actually interconnect. The probability of connectivity fault is about 1% in Europe/USA and 10% inside China. It is too much for industrial applications.
Without re6st, SlapOS (or any distributed container system) can not work. If one has to deploy 100 orchestrated services over a network of edge nodes with a 1% probability of faulty routes, the overall probability of failure quickly becomes too close to 100%. There is therefore no way to deploy edge without fixing the Internet first.
This is very easy to understand in China. But it is also true in Europe and USA (maybe not yet in Japan).
re6st routing provides one solution to that. re6st is available in China (license: 中华人民共和国增值电信业务经营许可证：沪A1-20140091). Nexedi has the right to provide global low latency high resiliency IPv6 network for IoT.
In addition to re6st, we use buffering to that we do not lose data sent by edge nodes (gateways or sensors) in case of application server failure for example:
Both re6st and fluentd are used in all IoT deployments done by Nexedi and based on SlapOS.