From the course: Certified Kubernetes Administrator (CKA) Cert Prep (2024)

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Understanding node networking requirements

Understanding node networking requirements - Kubernetes Tutorial

From the course: Certified Kubernetes Administrator (CKA) Cert Prep (2024)

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Understanding node networking requirements

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- So before setting up the cluster, it also help to knows a little bit about the networking requirements for your different nodes. In Kubernetes, different types of network communication are used. First, there is node communication. That is the part that is handled by the physical network, the part where all the nodes are directly connected to one another. There is External-to-Service communication, which is handled by Kubernetes Service resources. There a Pod-to-Service communication, which is handled by Kubernetes Services as well. And Pod-to-Pod communication is handled by the network plugin. And finally, there is the container-to-container communication, which is only applied if multiple containers are running in the same Pod. And this communication between these containers is handled within the Pod itself. An important part of the setup of your Kubernetes cluster considers the network add-on because without a network add-on, you can't define the Pod network. Now, the network…

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