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Jul 12, 2025 · Cloud Computing

Unlocking High‑Performance VM Networking: A Deep Dive into vhost/virtio and QEMU Backend Design

This article explains why virtual machine communication becomes a bottleneck in cloud and big‑data environments, introduces the vhost/virtio acceleration technique, and provides a step‑by‑step guide to hand‑crafting vhost/virtio, configuring QEMU's VIRTIO backend, and understanding the vhost‑user protocol and vhost‑net implementation.

Network Virtualizationkernelvhost

0 likes · 44 min read

Unlocking High‑Performance VM Networking: A Deep Dive into vhost/virtio and QEMU Backend Design

Liangxu Linux

Jun 12, 2024 · Cloud Computing

How VXLAN Extends VLAN for Scalable Cloud Networks – A Hands‑On Guide

This article explains the fundamentals of VXLAN, compares it with VLAN, and provides step‑by‑step Linux kernel and Open vSwitch implementations, including configuration commands, packet‑flow analysis, and practical testing to demonstrate overlay networking in cloud environments.

LinuxNetwork VirtualizationOpen vSwitch

0 likes · 16 min read

How VXLAN Extends VLAN for Scalable Cloud Networks – A Hands‑On Guide

Open Source Linux

May 8, 2024 · Cloud Native

Mastering VXLAN: Deep Dive into Linux Overlay Networks and Practical Configurations

This article explains the VXLAN protocol, its advantages over VLAN, the underlying encapsulation process, essential configuration commands, and hands‑on demos using Linux network namespaces, multicast groups, and bridge networking to build scalable overlay networks for cloud environments.

IP routingLinux networkingNetwork Virtualization

0 likes · 50 min read

Mastering VXLAN: Deep Dive into Linux Overlay Networks and Practical Configurations

Deepin Linux

Mar 29, 2024 · Backend Development

Understanding QEMU Vhost‑User Backend for Virtio‑Net Devices

This article explains the architecture and implementation of the virtio/vhost device model, details how QEMU creates and initializes virtio‑net‑pci devices, describes the vhost‑user communication protocol and its integration with DPDK and the Linux vhost‑net kernel driver, and provides practical command‑line examples and code snippets.

BackendDPDKNetwork Virtualization

0 likes · 31 min read

Understanding QEMU Vhost‑User Backend for Virtio‑Net Devices

360 Smart Cloud

Mar 4, 2024 · Cloud Computing

Virtual Network Fundamentals: Virtual NIC, Virtio Backend, KVM Interaction, and Node-Level Switching

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.

KVMNetwork VirtualizationOVS

0 likes · 21 min read

Virtual Network Fundamentals: Virtual NIC, Virtio Backend, KVM Interaction, and Node-Level Switching

MaGe Linux Operations

Jan 28, 2024 · Cloud Native

How to Build Virtual Networks with NFV: VLAN, VPN, vRouter, and vFirewall Code Samples

This article explains NFV (Network Function Virtualization) concepts and demonstrates how to create virtual network types—VLAN, VPN, vRouter, and vFirewall—using code examples in Python, Java, Go, and C++ for flexible, elastic network deployment.

Code SamplesNFVNetwork Virtualization

0 likes · 4 min read

How to Build Virtual Networks with NFV: VLAN, VPN, vRouter, and vFirewall Code Samples

Open Source Linux

Nov 14, 2023 · Operations

Understanding Network Virtualization: VXLAN, NVGRE, STT, and SPBM Explained

This article explains how network virtualization decouples logical and physical networks, introduces Underlay and Overlay architectures, and compares four major overlay protocols—VXLAN, NVGRE, STT, and SPBM—highlighting their mechanisms and benefits for modern data‑center design.

Data Center NetworkingNVGRENetwork Virtualization

0 likes · 10 min read

Understanding Network Virtualization: VXLAN, NVGRE, STT, and SPBM Explained

Liangxu Linux

Oct 29, 2023 · Fundamentals

How EVPN Transforms VXLAN Control Plane: Types, Routing, and MAC Learning Explained

This article explains the fundamentals of EVPN, how it extends MP‑BGP to provide a control plane for VXLAN, details the five EVPN route types, and shows how MAC learning, head‑end replication, and ARP suppression work in a distributed VXLAN network.

BGPData Center NetworkingEVPN

0 likes · 26 min read

How EVPN Transforms VXLAN Control Plane: Types, Routing, and MAC Learning Explained

Ziru Technology

Jun 30, 2023 · Cloud Computing

How VXLAN Transforms Data Center Networking: Principles and Real-World Deployment

This article explains the background, technical principles, deployment methods, and practical implementation of VXLAN in a large-scale data center, covering its encapsulation over UDP, distributed gateway architecture, MTU considerations, and lessons learned from real-world rollout at Ziroom Technology.

Distributed GatewayNetwork VirtualizationVXLAN

0 likes · 8 min read

How VXLAN Transforms Data Center Networking: Principles and Real-World Deployment

Liangxu Linux

Jun 29, 2023 · Cloud Computing

How VXLAN Extends VLAN for Scalable Cloud Networks – A Hands‑On Linux and OVS Guide

VXLAN (Virtual eXtensible LAN) overcomes VLAN’s 12‑bit limitation by using 24‑bit VNIs, encapsulating Ethernet frames in UDP, and enabling large‑scale, multi‑tenant overlay networks; the article explains its principles, packet format, and provides step‑by‑step Linux kernel and Open vSwitch implementation examples with commands and flow‑table configurations.

LinuxNetwork VirtualizationOpen vSwitch

0 likes · 16 min read

How VXLAN Extends VLAN for Scalable Cloud Networks – A Hands‑On Linux and OVS Guide

Baidu Intelligent Cloud Tech Hub

May 19, 2023 · Cloud Computing

How DPU‑Powered Cloud IaaS Revolutionizes Compute, Networking, and Storage

Baidu Intelligent Cloud’s 2023 GTC presentation details how its DPU‑based IaaS architecture unifies high‑performance compute, networking, storage, and security, addressing rapid AI workload growth, reducing CPU bottlenecks, and delivering elastic, cost‑effective solutions across virtual machines, bare‑metal servers, and specialized RDMA instances.

DPUHigh‑performance computingIaaS

0 likes · 17 min read

How DPU‑Powered Cloud IaaS Revolutionizes Compute, Networking, and Storage

Open Source Linux

May 17, 2023 · Cloud Computing

Mastering VXLAN: Principles, Linux & Open vSwitch Implementation Guide

This article explains VXLAN's role in cloud networking, details its 24‑bit VNI architecture, shows how Linux kernel and Open vSwitch implement VXLAN tunnels, and provides step‑by‑step command examples and flow‑table configurations to achieve overlay networking across multiple hosts.

LinuxNetwork VirtualizationOpen vSwitch

0 likes · 16 min read

Mastering VXLAN: Principles, Linux & Open vSwitch Implementation Guide

AI Cyberspace

May 13, 2023 · Cloud Computing

Mastering VxLAN: From Fundamentals to Advanced EVPN Integration

This article provides a comprehensive guide to VxLAN technology, covering its architecture, tunneling mechanisms, NVE/VTEP roles, L2/L3 gateway designs, MTU considerations, and the integration of EVPN MP‑BGP with detailed explanations of route types and deployment scenarios.

EVPNNetwork VirtualizationOverlay Networking

0 likes · 32 min read

Mastering VxLAN: From Fundamentals to Advanced EVPN Integration

AI Cyberspace

May 5, 2023 · Cloud Native

Master Open vSwitch: Architecture, Installation, and Advanced Configuration

This guide explains Open vSwitch's origins, core features, software architecture, key components such as ovsdb-server, ovs-vswitchd, and the kernel module, provides step‑by‑step installation on CentOS 7, and details configuration of bridges, ports, SSL, controllers, and flow handling for SDN environments.

LinuxNetwork VirtualizationOVS

0 likes · 34 min read

Master Open vSwitch: Architecture, Installation, and Advanced Configuration

Architects' Tech Alliance

Nov 27, 2022 · Cloud Computing

VXLAN Overview and Its Applications in Data Center and Campus Networks

This article explains the limitations of traditional data‑center networking for server virtualization, introduces VXLAN as an overlay VPN solution, describes its core components and tunnel mechanisms, and demonstrates how VXLAN is applied in cloud‑campus architectures with centralized and distributed gateway designs.

Network VirtualizationOverlay NetworksVXLAN

0 likes · 17 min read

VXLAN Overview and Its Applications in Data Center and Campus Networks

Architects' Tech Alliance

Oct 6, 2022 · Cloud Computing

Overview of NVIDIA BlueField DPU Features and Architecture

This article provides a comprehensive overview of NVIDIA BlueField DPU technology, detailing its interface and driver architecture, work modes, kernel representation model, multi‑host capabilities, virtual switch implementations, scalable functions, RDMA support, security accelerators, and related performance‑enhancing features for modern cloud and data‑center environments.

BlueFieldDPDKDPU

0 likes · 12 min read

Overview of NVIDIA BlueField DPU Features and Architecture

Architects' Tech Alliance

Jul 16, 2022 · Industry Insights

Why VXLAN Is Outpacing MPLS for Metro and WAN Networks

This article compares VXLAN and MPLS, explaining how VXLAN’s lower hardware costs, looser edge‑core coupling, and broader engineer expertise make it a more attractive overlay solution for modern metro and wide‑area networks.

Control PlaneMPLSMetro Ethernet

0 likes · 11 min read

Why VXLAN Is Outpacing MPLS for Metro and WAN Networks

Open Source Linux

Apr 26, 2022 · Cloud Computing

Why Cloud Networking Is the Future of IT Infrastructure

This article explains what cloud networking is, its historical evolution, how it differs from traditional networking and cloud computing, and outlines its key benefits such as cost reduction, scalability, resilience, and operational efficiency for modern enterprises.

Cost reductionIT infrastructureNetwork Virtualization

0 likes · 7 min read

Why Cloud Networking Is the Future of IT Infrastructure

Open Source Linux

Jan 13, 2022 · Fundamentals

VLAN vs QinQ vs VXLAN: Which Virtual LAN Technology Wins?

This article explains the fundamentals of VLAN, QinQ, and VXLAN, compares their tagging methods, scalability, and use cases, and helps readers understand which virtual LAN technology best fits modern network and cloud environments.

Network VirtualizationQinQVLAN

0 likes · 9 min read

VLAN vs QinQ vs VXLAN: Which Virtual LAN Technology Wins?

Cloud Native Technology Community

Jan 5, 2022 · Cloud Native

Understanding Open vSwitch: Concepts, Installation, and Architecture

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.

Cloud NativeInstallationLinux Bridge

0 likes · 11 min read

Understanding Open vSwitch: Concepts, Installation, and Architecture

Cloud Native Technology Community

Jan 5, 2022 · Cloud Native

Implementing Flat, VLAN, and VXLAN Networks with Open vSwitch and Docker

This article demonstrates how to build flat, VLAN, and VXLAN networking topologies using Open vSwitch integrated with Docker containers, covering architecture concepts, required host configurations, step‑by‑step command sequences, and connectivity testing across single‑host and multi‑host environments.

DockerNetwork VirtualizationOpen vSwitch

0 likes · 12 min read

Implementing Flat, VLAN, and VXLAN Networks with Open vSwitch and Docker

iQIYI Technical Product Team

Dec 3, 2021 · Operations

DPVS v1.9.0 Release: High-Performance Network Load Balancer Update

DPVS v1.9.0, the latest open‑source four‑layer network load balancer from iQIYI, now fully supports DPDK‑20.11 LTS, offers streamlined compilation, universal flow management, dynamic mbuf fields, enhanced per‑core scheduling and UDP health checks, and has been running stably in production for three months.

DPDKDPVSNetwork Virtualization

0 likes · 18 min read

DPVS v1.9.0 Release: High-Performance Network Load Balancer Update

Architects' Tech Alliance

Oct 24, 2021 · Cloud Computing

Why VXLAN Is the Key to Scaling Modern Data Centers

This article explains how VXLAN technology overcomes traditional data‑center network constraints—such as limited MAC tables, VLAN isolation, and VM migration scope—by using MAC‑in‑UDP encapsulation, VNI identifiers, and BGP EVPN control, and demonstrates its practical deployment in a CloudCampus solution.

BGP EVPNCloudCampusData Center Networking

0 likes · 16 min read

Why VXLAN Is the Key to Scaling Modern Data Centers

Refining Core Development Skills

Oct 14, 2021 · Cloud Native

Understanding Linux Bridge and veth for Docker Networking

This article explains how Linux bridge and virtual Ethernet (veth) devices work together to enable communication between Docker containers, covering the creation of network namespaces, veth pairs, bridge setup, kernel implementation details, and packet forwarding processes.

LinuxNetwork VirtualizationVeth

0 likes · 15 min read

Understanding Linux Bridge and veth for Docker Networking

Open Source Linux

Sep 17, 2021 · Fundamentals

Why VXLAN Is Essential for Modern Data Center Virtualization

This article explains how VXLAN extends Layer‑2 networks over IP using UDP encapsulation, enabling seamless VM live migration and massive tenant isolation, compares VXLAN with traditional VLANs, details packet structure, VTEP/VNI roles, gateway designs, and the EVPN control plane for efficient forwarding.

EVPNNetwork VirtualizationOverlay Networks

0 likes · 19 min read

Why VXLAN Is Essential for Modern Data Center Virtualization

Refining Core Development Skills

Sep 16, 2021 · Cloud Native

Deep Dive into Linux veth Pairs: Usage, Kernel Implementation, and Network Communication

This article provides a comprehensive technical analysis of Linux virtual Ethernet (veth) pairs, detailing their practical configuration, underlying kernel creation mechanisms, and complete network communication workflow within containerized environments like Docker.

Network VirtualizationVethcontainer networking

0 likes · 12 min read

Deep Dive into Linux veth Pairs: Usage, Kernel Implementation, and Network Communication

Architects' Tech Alliance

Sep 13, 2021 · Cloud Native

Understanding VXLAN: Architecture, Operation, and Deployment in Cloud‑Native Networks

VXLAN (Virtual Extensible LAN) is a network‑virtualization overlay that encapsulates Ethernet frames in UDP packets to create logical Layer‑2 domains over IP networks, enabling seamless VM migration, massive tenant isolation, and flexible gateway designs, while EVPN provides a scalable control plane for dynamic tunnel management.

EVPNNetwork VirtualizationOverlay Networking

0 likes · 21 min read

Understanding VXLAN: Architecture, Operation, and Deployment in Cloud‑Native Networks

360 Tech Engineering

Jan 8, 2021 · Cloud Native

Understanding Virtio, OVS, vhost-net, vhost-user, and vdpa: Architecture and Performance Analysis

This article explains the principles and performance characteristics of virtio networking, OVS virtual switching, and the related vhost‑net, vhost‑user, and vdpa mechanisms, comparing their architectures, data‑plane offloads, and suitability for cloud‑native environments.

Network VirtualizationOVScloud-native

0 likes · 16 min read

Understanding Virtio, OVS, vhost-net, vhost-user, and vdpa: Architecture and Performance Analysis

Liangxu Linux

Nov 11, 2020 · Cloud Computing

Understanding VXLAN: How Virtual Extensible LAN Powers Scalable Data Center Networks

This article explains the fundamentals of VXLAN, its tunnel-based architecture, why it is needed for virtual machine migration and multi‑tenant isolation, how it differs from VLAN, the packet format, VTEP and VNI concepts, tunnel establishment methods, gateway types, and detailed forwarding processes within both centralized and distributed VXLAN deployments.

Network VirtualizationOverlay NetworkingVNI

0 likes · 30 min read

Understanding VXLAN: How Virtual Extensible LAN Powers Scalable Data Center Networks

Open Source Linux

Oct 23, 2020 · Cloud Computing

How VXLAN Enables Scalable Data Center Networking and Seamless VM Migration

This article explains the VXLAN technology, its tunnel‑based architecture, why it is needed for virtual machine migration and multi‑tenant isolation, how it differs from VLAN, the roles of VTEP and VNI, gateway designs, and the detailed packet‑forwarding processes in both centralized and distributed data‑center networks.

Network VirtualizationOverlay NetworksVNI

0 likes · 28 min read

How VXLAN Enables Scalable Data Center Networking and Seamless VM Migration

Architects' Tech Alliance

Oct 18, 2020 · Cloud Computing

Understanding VXLAN: Concepts, Architecture, and Deployment in Data Center Networks

This article explains VXLAN technology, covering its definition, tunnel architecture, VTEP and VNI concepts, differences from VLAN, packet format, tunnel establishment methods, gateway types, and detailed forwarding processes for both same‑subnet and cross‑subnet communications in data‑center networks.

Network VirtualizationOverlay NetworkingVNI

0 likes · 30 min read

Understanding VXLAN: Concepts, Architecture, and Deployment in Data Center Networks

Sohu Tech Products

Jun 24, 2020 · Cloud Computing

Understanding Overlay Networks and VxLAN in Cloud Computing

This article explains the concept of overlay networks, their implementation with VxLAN, how they enable virtual machine migration, reduce MAC address pressure, and provide large‑scale network isolation in cloud environments, while detailing packet processing steps and design trade‑offs.

KubernetesNetwork VirtualizationOverlay Network

0 likes · 12 min read

Understanding Overlay Networks and VxLAN in Cloud Computing

Architects Research Society

Jun 6, 2020 · Cloud Computing

Cisco VXLAN Flood and Learn Spine‑and‑Leaf Network Overview

This article explains Cisco's VXLAN flood‑and‑learn spine‑and‑leaf architecture, covering its standards compliance, encapsulation format, underlay and overlay network design, multicast and ingress replication, host discovery, routing, and multi‑tenant support for both Layer 2 and Layer 3 environments.

CiscoNetwork VirtualizationOverlay Network

0 likes · 11 min read

Cisco VXLAN Flood and Learn Spine‑and‑Leaf Network Overview

Architects' Tech Alliance

Feb 8, 2020 · Cloud Computing

Demystifying FPGA: Architecture, Performance, and Microsoft's Data Center Deployment

FPGA, a reconfigurable hardware architecture, offers low latency and high efficiency compared to CPUs, GPUs, and ASICs, making it ideal for both compute‑intensive and communication‑intensive tasks, and Microsoft’s multi‑stage data‑center deployments illustrate its scalability, flexibility, and impact on cloud services.

FPGAHardware accelerationLow latency

0 likes · 21 min read

Demystifying FPGA: Architecture, Performance, and Microsoft's Data Center Deployment

Cloud Native Technology Community

Jan 9, 2020 · Industry Insights

What the NSDI 2015 OVS Paper Reveals About OpenFlow Performance and Caching

The article reviews the NSDI 2015 OVS paper, explaining OVS’s architecture, the challenges of OpenFlow‑based software switching, and the cache‑centric performance optimizations such as Tuple Space Search, MicroFlow and MegaFlow caching, while also suggesting further engineering improvements.

Network VirtualizationOVSOpen vSwitch

0 likes · 14 min read

What the NSDI 2015 OVS Paper Reveals About OpenFlow Performance and Caching

Efficient Ops

Dec 3, 2019 · Cloud Computing

Why SD‑WAN Is the Cost‑Effective Bridge Between Enterprise Networks and the Cloud

This article explains how SD‑WAN leverages SDN to connect enterprise networks, data centers, internet applications and cloud services, highlighting its four core features, cost‑performance advantages, QoS compensation methods, market growth, and the evolving stance of telecom operators.

Hybrid WANNetwork VirtualizationSD-WAN

0 likes · 7 min read

Why SD‑WAN Is the Cost‑Effective Bridge Between Enterprise Networks and the Cloud

Cloud Native Technology Community

Mar 28, 2019 · Cloud Native

Kubernetes Networking Limitations and the Promise of OVS/OVN Solutions

This article reviews the shortcomings of Kubernetes networking, explains the capabilities of OVS and OVN as unified solutions, maps OVN abstractions to Kubernetes concepts, and outlines future directions for enhancing cloud‑native network functionality, followed by an extensive Q&A session.

CNICloud NativeKubernetes

0 likes · 15 min read

Kubernetes Networking Limitations and the Promise of OVS/OVN Solutions

360 Tech Engineering

Mar 26, 2019 · Cloud Native

Cable: A Unified Virtual Network Architecture for OpenStack and Kubernetes

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.

Cable architectureCloud NativeKubernetes

0 likes · 5 min read

Cable: A Unified Virtual Network Architecture for OpenStack and Kubernetes

NetEase Game Operations Platform

Mar 8, 2019 · Operations

Achieving Non‑Stop Game Maintenance: Practices and Network Solutions at NetEase Games

This article details how NetEase Games implemented non‑stop maintenance for large‑scale online titles by reusing resources with Docker virtualization, evaluating Calico and Flannel overlay networks, and building a custom SDN solution, ultimately improving operational efficiency and player experience.

DockerKubernetesNetwork Virtualization

0 likes · 9 min read

Achieving Non‑Stop Game Maintenance: Practices and Network Solutions at NetEase Games

Didi Tech

Jan 7, 2019 · Cloud Native

Hot Upgrade of OVS‑DPDK in Didi Cloud: Achieving Millisecond‑Level Downtime

By integrating OVS‑DPDK with VF‑based flow separation, stateless forwarding, and dual redundant processes, Didi Cloud’s engineering team achieved millisecond‑level hot upgrades—approximately 80 ms per VM—while maintaining high‑performance packet forwarding, scalability across hundreds of VMs, and rapid fault recovery.

This article compiles a comprehensive list of open‑source SDN controllers, switches, and related tools—covering projects like OpenDaylight, RYU, Open vSwitch, and many others—to help network engineers and researchers navigate the rapidly evolving SDN ecosystem.

ControllersNetwork VirtualizationOpen-source

0 likes · 11 min read

Essential Open‑Source SDN Controllers and Switches You Should Know

Art of Distributed System Architecture Design

Apr 7, 2015 · Fundamentals

Review of SDN Definition, Applications, Challenges, and Recommendations

The article reviews various definitions of Software‑Defined Networking, examines its primary use in network virtualization, discusses additional application areas, outlines obstacles to adoption, critiques OpenFlow limitations, and offers practical recommendations for successful SDN deployment.

Network VirtualizationNetworkingOpenFlow

0 likes · 22 min read

Review of SDN Definition, Applications, Challenges, and Recommendations