Although fiber offers higher speed, longer reach, and stronger interference resistance, its high component cost, complex installation, lack of PoE support, and over‑provisioned performance make Ethernet cables the more practical choice for most access‑layer and cost‑sensitive deployments.
At the 4th China IPv6 Innovation Development Conference, Alibaba Cloud showcased its rapid IPv6 deployment—boosting IDC traffic share from 12% to 40%, expanding cloud product support to 97%, and leveraging IPv6/SRv6 to meet AI large‑model network demands, while sharing best practices across industry and government partners.
The 2024 white paper on China's computing power network outlines the evolution of data centers and IDC services, quantifies the digital economy’s 50.2 trillion RMB size, details a 624.75 billion RMB market in 2022 with a projected 1.06 trillion RMB valuation by 2025, and examines technology, application sectors, and emerging standards driving the industry.
Researchers from Harbin Institute of Technology analyzed nearly 14,000 Chinese government websites, uncovering widespread security flaws such as missing DNS records, over‑reliance on a few DNS and ISP providers, vulnerable jQuery versions, and inadequate server redundancy, all of which could enable large‑scale attacks.
Radia Perlman, the inventor of the Spanning Tree Protocol and dubbed the ‘mother of the Internet,’ argues that while decentralized blockchain promises freedom, its infrastructure remains unstable, and centralized systems still offer reliability, accountability, and practical benefits, making blockchain more hype than a core technology.
Despite the rapid rise of fiber optics in data centers, copper cables remain essential for voice transmission, power delivery, and short‑range networking, offering easier installation, lower cost, and compatibility with legacy systems, making them unlikely to be fully replaced.
Google Fiber announced plans to roll out up to 100 Gbps service in the United States, detailing its current 1‑2 Gbps offerings, pricing, recent multi‑gigabit tests, expansion negotiations across several states, and past challenges with micro‑trenching deployments.
The article examines the concept of computing‑power networks as a new digital‑economy infrastructure, explains their definition and measurement, compares computing power to electricity, and outlines the technical breakthroughs needed—especially in DPU, AI chips, and data‑center architectures—to realize a nationwide, low‑carbon, high‑performance computing fabric.
The newly published Open Control Module (OCM) hardware specification standardizes white‑box switch control modules, addressing existing compatibility and performance issues while supporting next‑generation switch chips, diverse CPUs, and fostering ecosystem adoption through the S³IP collaborative project.
The article explores how modern cloud computing relies on high‑speed optical modules for massive data transmission, detailing the shift from proprietary, closed‑box solutions to open, scalable designs, the rapid development of 40G‑400G optics, quality‑control challenges, and future demands from AI, 5G, and edge computing.
Optical fiber, a glass or plastic strand transmitting light via total internal reflection, underpins modern high‑capacity communications; this article explains its principles, dispersion and loss mechanisms, compares multimode and single‑mode fibers, outlines standards such as ITU G.651‑G.657, and reviews connectors, patch cords, and major industry manufacturers.
This article explains how Douyin (TikTok) and its parent companies operate massive data centers with tens of thousands of servers and multi‑terabit outbound bandwidth, using dual‑link designs, CDN acceleration, and load‑balancing to support hundreds of millions of concurrent users.
The article explores how TikTok (Douyin) and its parent company ByteDance operate massive data centers with terabit‑level outbound bandwidth, thousands of servers, CDN acceleration, and multi‑link designs to support hundreds of millions of concurrent users, detailing server counts, bandwidth estimates, and the underlying networking technologies.
This article explains Power over Ethernet (PoE) technology, covering its definition, two power delivery methods, step‑by‑step operation, key advantages, troubleshooting tips, distance calculations, cable requirements, and guidelines for selecting the right PoE switch for reliable network and security deployments.
This article explains the concept, standards, power delivery methods, installation advantages, troubleshooting steps, distance calculations, and selection guidelines for Power over Ethernet (PoE) systems, helping network engineers design reliable PoE solutions for security, surveillance, and wireless access applications.
The article reviews the shift from 10G to 25G and higher‑speed optical modules, comparing 25G native chips with 10G over‑clock solutions, discussing supply‑chain dynamics, network upgrade paths, 400G packaging standards, and the growing demand for high‑speed transceivers in modern data‑center and telecom infrastructures.
Youku completed a six‑month, full‑scale IPv6 migration in 2018, upgrading client and server stacks, deploying dual‑stack then IPv6‑only networks with 4over6, solving challenges like lack of IPv6 environments, OS module updates, MTU handling, address libraries, CDN coordination, and robust fallback, testing, and monitoring.
The article traces China’s IPv6 evolution from the 1999 RIPE NCC allocation through low adoption rates, the 2017 national action plan, and the 2019 IPv4 exhaustion, while detailing Tencent Cloud’s four‑phase, dual‑stack migration—spanning over 50 products and 150 million users—driven by innovative SDN, DDoS defense, and automated address management technologies.
On November 25, 2019, the last remaining IPv4 addresses were allocated by RIPE NCC, marking the global exhaustion of the 4.3 billion‑address pool; the article recounts the regional allocation timeline, the role of the five RIRs, and highlights ongoing IPv6 adoption, especially in China.
Alibaba has fully rolled out IPv6 across its services, explaining the protocol’s massive address space, the urgent need caused by IPv4 exhaustion, and how this transition will enable limitless IoT devices, smarter cities, and stronger security for a wide range of industries.
Google’s ambitious but halted Google Fiber project, launched in 2010 and paused in 2016, not only demonstrated the feasibility of gigabit broadband but also triggered a competitive ‘gigabit war’, reshaping ISP investment, accelerating fiber deployments, influencing 5G rollout strategies, and redefining public‑private infrastructure partnerships.
Alibaba senior technology director Xie Chongjin explains the company's ambitious roadmap for optical communication networks, tracing their historical roots, current technical challenges such as the Shannon limit, and future standards that aim to accelerate data‑center bandwidth while keeping costs under control.
