This article compares LVS (Layer 4) and Nginx (Layer 7) load balancers, explaining why LVS achieves higher throughput by only inspecting IP headers while Nginx terminates TCP connections for HTTP-aware routing, health checks, and request retry — at the cost of added latency and configuration complexity.
This guide walks through the differences between 4‑layer (TCP) and 7‑layer (HTTP) load balancing in Nginx, explains when to use each, and provides step‑by‑step configuration examples, health‑check setups, performance tuning, SSL handling, WebSocket support, and common pitfalls.
This guide explains the fundamental differences between Layer 4 (transport‑level) and Layer 7 (application‑level) load balancers, compares Alibaba Cloud and Tencent Cloud offerings across performance, features, and pricing, and provides practical selection tips and common pitfalls to avoid.
This guide explains the differences between Layer 4 and Layer 7 load balancing in Nginx, shows how to select the appropriate mode for various scenarios, provides detailed configuration examples—including upstream settings, health checks, SSL handling, and performance tuning—and shares best‑practice tips to avoid common pitfalls.
This article explains how Ethernet switches learn MAC addresses, forward frames, prevent loops, and differ across store‑and‑forward, cut‑through, and multi‑layer designs, while also covering routing fundamentals, layer‑3 switching operation, and the principles of layer‑4 load‑balancing switches.
This article compares Nginx and LVS load balancers, detailing their layer‑4 versus layer‑7 operation, features, advantages, and how static‑dynamic separation and health checks affect performance and operability in modern server architectures.
This article explains the operating principles, main functions, characteristics, and classifications of Ethernet switches, covering layer‑2 learning and forwarding, layer‑3 routing, layer‑4 load‑balancing, and the technical criteria used to evaluate switch performance.
This article explains the fundamentals of load balancing, compares four‑layer and seven‑layer approaches, outlines their roles and advantages, and reviews popular software solutions and typical application scenarios for modern large‑scale web infrastructures.
HAProxy is an open‑source, high‑performance load‑balancing software that operates at both layer 4 (TCP) and layer 7 (HTTP), offering strong reliability, massive concurrency handling, flexible algorithms, and powerful monitoring, making it ideal for large‑scale web and database workloads.
The article explains how direct connections to a single web server create a single point of failure and limit scalability, then introduces layer‑4 (transport‑level) load balancing that distributes traffic among multiple backend servers, and finally describes layer‑7 (application‑level) load balancing that routes requests based on URL paths such as “/” and “/blog”, highlighting the added complexity and proxy‑like behavior required.
