How is the logical network structure implemented in Kubernetes?

In Kubernetes, the logical network structure is based on the fact that each Pod receives its own IP address, and all Pods can communicate directly with each other without NAT.

Main principles:

• Flat network — all Pods are in the same network space, simplifying interaction.
• Service — an abstraction that provides a stable IP and DNS name for accessing a group of Pods, ensuring load balancing.
• Network Plugins (CNI) — implement network functionality, providing routing and isolation.

Thus, the Kubernetes logical network allows Pods to interact as if in a single network, and services provide access and load balancing between them.