GlobalRouter is a global routing capability provided by TKE based on the underlying VPC instance. It implements a routing policy for mutual access between the container network and the VPC instance. This network mode has the following characteristics:
Container routing is performed directly through the VPC instance.
Containers and nodes are located on the same network plane.
Container IP ranges are dynamically assigned without occupying other IP ranges in the VPC instance.
The GlobalRouter mode is suitable for general use cases and can be seamlessly used with standard Kubernetes features. The following diagram illustrates how it works:
Use Limits
The IP address ranges of the cluster network and container network cannot overlap.
The IP address ranges of container networks in different clusters within the same VPC instance cannot overlap.
If the container network and the VPC route overlap, traffic will be preferentially forwarded within the container network.
