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360 Zhihui Cloud Developer
360 Zhihui Cloud Developer
Aug 14, 2025 · Cloud Computing

How Cloud Connect Network v1 Optimizations Boost Performance and What Challenges Remain

This article explains the Cloud Connect Network (CCN) background, describes the V1 optimization that switched packet forwarding to a session model, outlines the resulting issues, proposes a route‑based session list redesign, presents performance test results, and discusses future enhancements for high‑performance cloud networking.

DPDKPerformance OptimizationSession Management
0 likes · 10 min read
How Cloud Connect Network v1 Optimizations Boost Performance and What Challenges Remain
360 Zhihui Cloud Developer
360 Zhihui Cloud Developer
Nov 12, 2024 · Cloud Computing

How Session‑Based Acceleration Cuts Cloud Connect Latency from 500 ms to 1 ms

This article examines the Cloud Connect Network gateway architecture, identifies performance bottlenecks in the V1 packet‑forwarding process, proposes a session‑based optimization that reduces query complexity from O(n) to O(1), and validates the improvement with latency tests showing a drop from 500 ms to about 1 ms.

DPDKSession ManagementVXLAN
0 likes · 11 min read
How Session‑Based Acceleration Cuts Cloud Connect Latency from 500 ms to 1 ms
Liangxu Linux
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
Open Source Linux
May 7, 2024 · Operations

Why Spine‑Leaf IP Fabric Beats Traditional Data Center Networks

This article compares traditional three‑tier data‑center networking with modern spine‑leaf IP Fabric architectures, highlighting differences in bandwidth, availability, scalability, security, convergence time, multi‑tenant support, ECMP routing, configuration complexity, automation, and cost to help engineers choose the optimal design.

BGP EVPNData centerScalability
0 likes · 14 min read
Why Spine‑Leaf IP Fabric Beats Traditional Data Center Networks
Open Source Linux
Open Source Linux
Mar 29, 2024 · Fundamentals

Why Spine‑Leaf IP Fabric Beats Traditional Data Center Networks

This article compares traditional three‑tier data‑center networking with modern leaf‑spine IP‑Fabric architectures, detailing bandwidth, availability, scalability, security, and the advantages of BGP EVPN and VXLAN in terms of scalability, convergence, multi‑tenant support, automation, and overall cost.

BGP EVPNData centerIP fabric
0 likes · 14 min read
Why Spine‑Leaf IP Fabric Beats Traditional Data Center Networks
Linux Code Review Hub
Linux Code Review Hub
Mar 6, 2024 · Operations

Advanced Congestion Management Techniques for Lossless Ethernet Storage Networks

The article examines high‑level strategies for preventing and recovering from congestion in lossless Ethernet storage networks, including disconnecting faulty devices, early frame dropping, traffic isolation, endpoint notifications, rate limiting, pause‑timeout, PFC watchdog mechanisms, detailed Cisco configuration commands, and the benefits and limitations of each approach.

Cisco NexusCongestion ManagementECN
0 likes · 33 min read
Advanced Congestion Management Techniques for Lossless Ethernet Storage Networks
Open Source Linux
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
Ziru Technology
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.

Data centerDistributed GatewayNetwork Virtualization
0 likes · 8 min read
How VXLAN Transforms Data Center Networking: Principles and Real-World Deployment
Liangxu Linux
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
Open Source Linux
Open Source Linux
Jun 8, 2023 · Operations

Build a BGP EVPN‑Based VXLAN Lab on Linux with FRR

This article explains the different VXLAN control‑plane options, focuses on the BGP EVPN approach, and provides a step‑by‑step Linux lab using FRR to configure VTEP devices, establish route‑reflector sessions, and verify MAC and FDB propagation across the overlay network.

BGP EVPNFRRLinux
0 likes · 17 min read
Build a BGP EVPN‑Based VXLAN Lab on Linux with FRR
Open Source Linux
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
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.

Data centerEVPNNetwork Virtualization
0 likes · 32 min read
Mastering VxLAN: From Fundamentals to Advanced EVPN Integration
Open Source Linux
Open Source Linux
Dec 12, 2022 · Cloud Computing

Why VXLAN Is the Key to Scalable Data Center Networks

This article explains how VXLAN overcomes traditional data‑center network limits on VM scale, isolation, and migration by using MAC‑in‑UDP encapsulation, a 24‑bit VNI, and BGP EVPN control plane, and shows its practical deployment in cloud‑campus environments with gateways, VTEP, NVE, and VBDIF.

BGP EVPNCloud CampusData Center Networking
0 likes · 15 min read
Why VXLAN Is the Key to Scalable Data Center Networks
Architects' Tech Alliance
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.

Data centerNetwork VirtualizationOverlay Networks
0 likes · 17 min read
VXLAN Overview and Its Applications in Data Center and Campus Networks
Top Architect
Top Architect
Nov 21, 2022 · Cloud Native

Understanding Underlay and Overlay Network Models in Kubernetes

This article provides a comprehensive overview of Kubernetes networking by explaining the concepts of underlay and overlay network models, describing their implementations such as flannel host‑gw, Calico BGP, IPVLAN/MACVLAN, and tunneling technologies like VxLAN and IPIP, and offering practical references for each approach.

CNICalicoFlannel
0 likes · 14 min read
Understanding Underlay and Overlay Network Models in Kubernetes
Architects' Tech Alliance
Architects' Tech Alliance
Jun 29, 2022 · Fundamentals

VXLAN vs MPLS: Why VXLAN Is Gaining Preference in Metro and Wide‑Area Networks

The article compares VXLAN and MPLS, explaining their underlying virtualization concepts, cost and operational differences, and demonstrates why VXLAN is increasingly favored over MPLS for metro‑area and wide‑area network deployments due to lower hardware costs, simpler engineering, and flexible overlay capabilities.

Data centerMPLSMetro WAN
0 likes · 11 min read
VXLAN vs MPLS: Why VXLAN Is Gaining Preference in Metro and Wide‑Area Networks
Architects' Tech Alliance
Architects' Tech Alliance
Apr 23, 2022 · Cloud Computing

Understanding VXLAN: Architecture, Benefits, and Comparison with Other Overlay Technologies

This article provides a comprehensive overview of VXLAN, explaining its purpose, architecture, frame format, VTEP implementations, and advantages over VLAN, Q‑in‑Q, MPLS, and other overlay protocols, while also discussing control‑plane options such as BGP EVPN and SDN automation for modern data‑center networks.

BGP EVPNDPUData Center Networking
0 likes · 14 min read
Understanding VXLAN: Architecture, Benefits, and Comparison with Other Overlay Technologies
Open Source Linux
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
Cloud Native Technology Community
Jan 5, 2022 · Operations

Understanding Open vSwitch Flow Tables: Concepts, Match Fields, Actions, and Practical Commands

This article, the second part of the “Open vSwitch Full Analysis” series, explains the structure and operation of OVS flow tables, detailing match fields, actions, priorities, timeouts, and provides practical ovs‑ofctl command examples for configuring flows, VLANs, and tunnels such as VXLAN and GRE.

Flow TableGREOpen vSwitch
0 likes · 16 min read
Understanding Open vSwitch Flow Tables: Concepts, Match Fields, Actions, and Practical Commands
Cloud Native Technology Community
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
Open Source Linux
Open Source Linux
Dec 21, 2021 · Fundamentals

Why VLANs Matter: Unlocking Network Efficiency and Security

This article explains VLAN fundamentals, why they are needed, how they differ from subnets, the role of VLAN tags and IDs, various interface types, practical deployment scenarios, related protocols, and the challenges VLANs face in modern cloud environments.

Layer 2NetworkingVLAN
0 likes · 12 min read
Why VLANs Matter: Unlocking Network Efficiency and Security
Architects' Tech Alliance
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
Open Source Linux
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.

Data centerEVPNNetwork Virtualization
0 likes · 19 min read
Why VXLAN Is Essential for Modern Data Center Virtualization
Architects' Tech Alliance
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.

Data centerEVPNNetwork Virtualization
0 likes · 21 min read
Understanding VXLAN: Architecture, Operation, and Deployment in Cloud‑Native Networks
Liangxu Linux
Liangxu Linux
Jun 30, 2021 · Cloud Native

Understanding Overlay vs. Underlay Networks in Kubernetes

This article explains the concepts, mechanisms, and trade‑offs of Overlay and Underlay network models for container networking in Kubernetes, covering VXLAN, MAC VLAN, IP VLAN, and direct‑routing approaches with practical examples and configuration details.

Direct RoutingIP VLANKubernetes
0 likes · 13 min read
Understanding Overlay vs. Underlay Networks in Kubernetes
Liangxu Linux
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.

Data centerNetwork VirtualizationOverlay Networking
0 likes · 30 min read
Understanding VXLAN: How Virtual Extensible LAN Powers Scalable Data Center Networks
Open Source Linux
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.

Data centerNetwork VirtualizationOverlay Networks
0 likes · 28 min read
How VXLAN Enables Scalable Data Center Networking and Seamless VM Migration
Architects' Tech Alliance
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.

Data centerNetwork VirtualizationOverlay Networking
0 likes · 30 min read
Understanding VXLAN: Concepts, Architecture, and Deployment in Data Center Networks
StarRing Big Data Open Lab
StarRing Big Data Open Lab
Aug 18, 2020 · Cloud Native

Why Overlay Networks Matter: Deep Dive into Flannel’s UDP, VXLAN, and Host‑gw Modes

This article explains why Kubernetes requires an overlay network, describes Docker’s virtual bridge limitations, introduces Flannel’s architecture and its three data‑forwarding modes—UDP, VXLAN, and host‑gw—detailing their mechanisms, performance trade‑offs, and how the StarRing TCOS platform leverages these modes for different cluster sizes and network topologies.

FlannelKubernetesOverlay Network
0 likes · 13 min read
Why Overlay Networks Matter: Deep Dive into Flannel’s UDP, VXLAN, and Host‑gw Modes
Sohu Tech Products
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
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.

CiscoData centerNetwork Virtualization
0 likes · 11 min read
Cisco VXLAN Flood and Learn Spine‑and‑Leaf Network Overview
Architects Research Society
Architects Research Society
Jun 4, 2020 · Cloud Computing

Network Overlay Technologies for Modern Virtualized Data Center Architectures

The article explains the requirements of modern virtualized data‑center structures, describes network overlay concepts and formats such as VXLAN, NVGRE, TRILL and LISP, outlines their benefits like optimized device functions, scalability and overlapping addressing, and reviews Cisco's spine‑and‑leaf designs that meet these needs.

CiscoNetwork OverlayVXLAN
0 likes · 5 min read
Network Overlay Technologies for Modern Virtualized Data Center Architectures
Architects Research Society
Architects Research Society
Feb 29, 2020 · Cloud Native

Performance Comparison of Kubernetes Container Network Solutions: Flannel, IPvlan, VXLAN, Host‑GW, and AWS‑VPC

This study evaluates Kubernetes container networking options—Docker host networking, Flannel, IPvlan, VXLAN, host‑gw, and AWS‑VPC—by measuring latency, throughput, and installation cost under high‑load conditions, revealing IPvlan as the lowest‑latency, highest‑throughput solution while host‑gw offers a balanced, low‑dependency alternative.

Cloud NativeFlannelKubernetes
0 likes · 13 min read
Performance Comparison of Kubernetes Container Network Solutions: Flannel, IPvlan, VXLAN, Host‑GW, and AWS‑VPC
Qunar Tech Salon
Qunar Tech Salon
Jun 22, 2018 · Operations

Evolution of Data Center Network Architecture at Qunar: From Traditional STP to Leaf‑Spine and VXLAN

The article outlines Qunar's data‑center network evolution, describing the limitations of traditional STP‑based designs, the adoption of vPC for active‑active redundancy, the transition to leaf‑spine topology for scalability, and the implementation of VXLAN to support large‑scale multi‑tenant cloud environments.

Data centerLeaf-SpineVPC
0 likes · 8 min read
Evolution of Data Center Network Architecture at Qunar: From Traditional STP to Leaf‑Spine and VXLAN
Architects' Tech Alliance
Architects' Tech Alliance
Dec 16, 2017 · Fundamentals

How VxLAN Powers Seamless Dual‑Active Data Center Failover

The article explains why traditional Layer‑2 networks hinder VM live migration in dual‑active data centers, introduces the concept of big‑layer networking, and details how VxLAN overcomes VLAN limits and loop issues to enable uninterrupted cross‑site service continuity.

Big Layer NetworkData centerDual-Active
0 likes · 4 min read
How VxLAN Powers Seamless Dual‑Active Data Center Failover
21CTO
21CTO
Jan 19, 2016 · Cloud Computing

How Meituan Cloud Scaled Its Network Architecture from Private to Public Cloud

This article details Meituan Cloud's evolution from a private, self‑developed cloud platform to a high‑performance public cloud, covering the motivations, architectural upgrades across physical links, host networking, gateways, controllers, and the adoption of overlay technologies like VXLAN to achieve industry‑leading scalability and reliability.

DPDKVXLANcloud computing
0 likes · 11 min read
How Meituan Cloud Scaled Its Network Architecture from Private to Public Cloud
Alibaba Cloud Infrastructure
Alibaba Cloud Infrastructure
May 22, 2015 · Operations

Case Study: SDN‑Based Overlay/Underlay Network Architecture and Automation at Alibaba

The presentation reviews Alibaba's ongoing transition to a large‑scale, SDN‑driven data‑center network using OpenFlow hybrid switches, VXLAN overlay, automated deployment, and discusses the challenges, solutions, and future directions for network elasticity, hybrid cloud integration, and standardization.

Data centerOpenFlowOverlay Network
0 likes · 11 min read
Case Study: SDN‑Based Overlay/Underlay Network Architecture and Automation at Alibaba