Overview

Traffic governance is a core function of Istio. It provides you with non-intrusive traffic governance capabilities. You only need to focus on your own service logic rather than service access management. The problems to be solved by traffic governance are as follows:

• Dynamically modifying load balancing policies for cross-service access, such as configuring consistent hashing to forward traffic to specific service pods
• Distributing a certain proportion of traffic to a specific version of a service when the service has two online versions
• Protecting services, for example, limiting the number of concurrent connections and requests, and isolating faulty service pods
• Dynamically modifying the content of a service or simulating a service running fault

ASM supports traffic governance capabilities such as retry, timeout, connection pool, outlier detection, load balancing, HTTP header, and fault injection, meeting governance requirements in most service scenarios.