News

ARP and MAC address resolution: the first step in LAN communication

In a local area network, whether you are accessing a printer or browsing a web page, the first step is actually to "ask for directions" - and this process of asking for directions relies on the ARP protocol.

11 2025-04

HTTP status code review: from "404 Not Found" to "418 I am a teapot"

Whether you are an ordinary Internet user, a front-end developer or a webmaster, this article will open a door for you to the inner workings of the HTTP protocol.

11 2025-04

NAT technology revealed: Do you really understand static NAT, dynamic NAT and PAT?

Static NAT, dynamic NAT and PAT (Port Address Translation) are the three major mechanisms of NAT, showing unique advantages in different scenarios.

10 2025-04

Detailed explanation of STP Spanning Tree Protocol: basic concepts, related terms

After the spanning tree protocol is deployed in an Ethernet switching network, if a loop occurs in the network, the spanning tree protocol can eliminate the loop

10 2025-04

Practice: When multiple wireless routers are connected to the workshop, a large number of ARPs

The IT department of a joint venture automobile company built a new automated workshop. Taking cost into consideration, the workshop's wired and wireless network considered using a pure fool-proof

09 2025-04

Switches and VLANs: Understanding the secrets of broadcast and collision domains

In an enterprise, public network address resources are limited, but the number of intranet hosts is huge. We can use the NAT address pool to dynamically map

09 2025-04

Detailed explanation of Jumbo Frames

Jumbo Frame is a manufacturer-standard extra-long frame format. The maximum frame length of the Ethernet standard is 1518 bytes.

08 2025-04

FastAPI routing explained in detail: path parameters, query parameters, request body,

This article will show you how to fully master the three most commonly used parameter types in FastAPI, and use Pydantic validation to easily build high-quality APIs!

08 2025-04

What are the types of "Layer 2 loops" that have caused numerous network crashes? How can we troubleshoot and resolve them?

The existence of Layer 2 loops will have a serious impact on network performance and stability. Therefore, during network design and deployment, effective measures must be taken to prevent and control the occurrence of Layer 2 loops.

07 2025-04

From standard formulation to large-scale implementation

Recently, the Guangxi Electronics Society officially released the "High-speed Ethernet All-optical Network System Construction Specification" (T/GXIE 009-2025).