A smartphone, a computer, a new energy vehicle, or even a smart refrigerator—what is the “brain” behind them? The answer lies within a space the size of a fingernail—chips. From daily life to aerospace technology, chips serve as the “invisible cornerstone” of modern society, yet they are rarely truly understood. Today, we will unveil the … Read more
I have been writing RTL for over a decade and have encountered various engineering coding standards, constraints, and suggestions. Therefore, I am summarizing my experiences at this stage. The Verilog/SV coding suggestions and some engineering requirements mentioned and discussed in this series are based on what I have encountered and understood during my work process. … Read more
Air Force Information Communication Brigade — Network Coordination Tests Aggregation Efficiency ■ Zhao Weiguang, Zhang Han, PLA Daily Reporter, Li Jianwen “Operators, take your positions!” Inside the communication command cabin, as soon as the directive from the control team was given, the operators swiftly rushed to their posts, and the construction of channels such as … Read more
Scientific and Technological Powerhouse No 2 Core of this section: Now, there are only 10 years left to achieve the goal of becoming a scientific and technological powerhouse. A thousand years is too long; we must seize the day. Building a scientific and technological powerhouse, “the historical baton has been passed to our generation,” with … Read more
A multinational company experienced a network outage for 3 days due to a misconfiguration in MPLS cross-domain settings! “Overseas branch disconnected for 3 days”! MPLS VPN cross-domain is like international express delivery—if you choose the wrong transportation route, the package will be lost! Today, we will break down Huawei’s “three cross-domain solutions”, covering everything from … Read more
Hello, everyone!~ I am network engineer Bai Xi! 🌞 This article focuses on the configuration of Huawei IPSec VPN dynamic access scenarios. It details the barbaric mode negotiation mechanism, policy template application, and NAT priority tuning solutions, providing CLI templates for heterogeneous networking between headquarters and branches. Note In this experiment, the branch’s IP address … Read more
B.A.T.M.A.N.-adv (Better Approach To Mobile Ad-hoc Networking – Advanced) is a relatively latecomer among wireless mesh network (Ad-Hoc) routing protocols, specifically designed for decentralized, self-organizing multi-hop wireless networks. Compared to other ad-hoc routing technologies like HWMP and OLSR, its most distinctive feature is that it operates at L2 and can calculate the optimal path in … Read more
Large Campus Networking Solutions: VLAN Division and Bandwidth Calculation Example (with Configuration Template) Abstract: The efficient operation of large campus networks relies on scientific VLAN planning and precise bandwidth calculations. This article provides a step-by-step guide using a real case study of a campus with 5000 people, teaching you how to avoid broadcast storms, optimize … Read more
Recently, the National Tibetan Plateau Scientific Data Center, as a data repository for scientific papers, shared the “Near-Global Scale Surface Shortwave Radiation, Photosynthetically Active Radiation, and Ultraviolet Radiation Dataset (2018.6-2019.6)”, developed by Researcher Husi Letu and Researcher Shi Chong (first author) from the Chinese Academy of Sciences’ Aerospace Information Research Institute and their team. This … Read more
This Issue’s Topic: How to Network Between Extranet, Intranet, and Device Networks? Many friends have asked multiple times, what are the extranet, intranet, and intelligent device networks? What projects will use them? How to design the network? Weak current projects cannot do without these networks. In this issue, we will thoroughly understand how to design … Read more