In this chapter, we demonstrated Istio's traffic management capabilities for traffic shifting, setting request timeouts, controlling Ingress and Egress traffic, circuit breaking to protect services from overload and attacks, and mirroring traffic from one route to another route.
These were the breakthroughs from the earlier concepts of achieving the same results either through coding in the application or by using libraries for every language. The capability to control traffic at the edge of the cluster gives operations staff ease-of-use to manage the application infrastructure dynamically and resiliently without needing intervention from developers. As an example, it is possible to completely block access to any external service from the distributed microservices application except whitelisted service entries.
It is worth noting that all of the features we learned...
