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Container Network Interfaces (CNI)#

MKE 4k supports Container Network Interface (CNI) plugins to enable the networking functionalities needed for container communication and management within a cluster. These plugins are responsible for setting up, modifying, and tearing down network interfaces when containers are created or removed. They provide MKE 4k with a wide range of networking functionalities, including IP address management, routing, NAT, and network isolation.

CNI plugins that MKE 4k currently supports include Calico OSS

Important

MKE 4k supports upgrades from MKE 3 clusters that are using Calico OSS or an unmanaged CNI. For more information, refer to Upgrade from MKE 3.7 or 3.8.