Network interface
A network interface is a physical or logical connection point through which a system sends and receives network traffic.
Google Anthos in Action
A network interface is a software or hardware connection through which a computing workload sends and receives network traffic.
- How it is used
- Supports edge and telco Pods that require separated, higher-performance, or isolated network flows.
- How deep it goes
- Explains interface naming, supported CNI choices, and the three configuration steps, but stops short of detailed runtime networking internals.
- Examples
- Uses cluster YAML, an IPvlan NetworkAttachmentDefinition, and a Deployment annotation assigning multiple networks.
- What you can do after
- Configure multiple Pod interfaces through Anthos cluster settings, NetworkAttachmentDefinition resources, and workload annotations.
Read how Google Anthos in Action explains network interface →
Amazon Web Services in Action, Third Edition: An in-depth guide to AWS
A network interface is a virtual network attachment that provides an instance with network connectivity and associated IP addresses.
- How it is used
- Provides EC2 and Lambda workloads with selected network connectivity, IP addresses, subnet placement, and access to separated or private networks.
- How deep it goes
- Defines the attachment, explains multiple-interface use cases, and gives console steps for creation and attachment without detailing networking internals.
- Examples
- Uses a two-interface EC2 web server, eth0 and eth1 output, separate virtual hosts, and a Lambda health check for an internal website.
- What you can do after
- Operate/configure additional interfaces through the EC2 console and connect Lambda functions to private VPC resources when necessary.
Acing the CCNA Exam: Volume 1 Fundamentals and Protocols
A network interface is a connection point through which a device communicates with other devices in a network.
- How it is used
- Connects devices through physical and software-represented endpoints while supporting configuration and communication.
- How deep it goes
- Explains port terminology, router-versus-switch behavior, and practical settings for description, speed, duplex, and enablement.
- Examples
- Uses router R1 and switch SW1 configurations, end-user connections, and disabled unused switch ports.
- What you can do after
- Operate/configure Cisco IOS interfaces with descriptions, IP addresses, speed, duplex, enablement, and shutdown settings.
Read how Acing the CCNA Exam: Volume 1 Fundamentals and Protocols explains network interface →
Related concepts
- podpart of · A Kubernetes Pod is the smallest deployable unit in Kubernetes, grouping one or more co-located containers that share networking and other resources.
- show ip interface briefmeasured by · show ip interface brief is a Cisco IOS command that displays concise IPv4 addressing and operational status information for interfaces.
- access control listconfigured by · An access control list is a collection of rules specifying which subjects or traffic may access a resource or perform particular operations.
- loopback interfacecontrasts with · A loopback interface is a virtual network interface that routes traffic back through the same host or network stack without using an external network.
- no shutdown commandconfigured by · The Cisco IOS no shutdown command removes an administrative shutdown from an interface, enabling it to operate.
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