This article explains how virtual networks operate in cloud computing by covering virtual NIC implementation, Virtio frontend/backend mechanisms, KVM signal interaction, and both layer‑2 and layer‑3 forwarding within a node using OVS and related technologies.
This article explains Linux's virtual network devices—including Tap and Tun virtual NICs, Veth-pair links, Bridge bridges, Network namespaces, VLAN sub‑interfaces, MACVLAN and MACVTAP—detailing their architecture, driver components, configuration commands, and practical examples for building isolated or connected virtual networking environments.
This article introduces Open vSwitch, compares it with Linux Bridge, details its features, provides step‑by‑step installation on CentOS 7, explains its architecture and packet‑forwarding process, and clarifies key components and terminology for building virtual networking in cloud environments.
The article introduces Cable, a new virtual network architecture that unifies management of physical, virtual, and container networks across OpenStack and Kubernetes, detailing its design, key components such as a virtual data plane and self‑developed control plane, compatibility with existing OpenStack APIs, and future development plans.
This guide explains how VMware Workstation simulates physical network devices, sets up virtual NICs and switches, and uses DHCP and NAT services to enable guest VMs to communicate internally, bridge to the host network, or access the Internet.
