Many low-voltage engineers often encounter network faults in projects that require detection and localization of the fault points through various commands. By using network commands, the troubleshooting work can achieve significant efficiency. Let’s review and learn anew! 1. Ping Command (Internet Packet Explorer) The ping command is a highly utilized utility primarily used to determine … Read more
9 Common Network Commands, Very Practical! 1. ping Command PING (Packet Internet Groper), the Internet packet explorer, is a program used to test network connectivity. Ping operates in the TCP/IP network architecture at the application layer, primarily sending ICMP (Internet Control Message Protocol) Echo request messages to a specific destination host to test whether the … Read more
Author: Shui De Original: http://blog.csdn.net/jxh_123/article/details/40316081 1. OSI, TCP/IP, and Five-Layer Protocol Architecture OSI Layers (7 layers): Physical Layer, Data Link Layer, Network Layer, Transport Layer, Session Layer, Presentation Layer, Application Layer. TCP/IP Layers (4 layers): Network Interface Layer, Internet Layer, Transport Layer, Application Layer. Five-Layer Protocol (5 layers): Physical Layer, Data Link Layer, Network Layer, … Read more
Directory Some friends asked: Why can’t we go online without configuring an IP address? What is the IP protocol? This starts with the TCP/IP protocol; the Internet uses the TCP/IP protocol, among which the IP protocol is one of the most important protocols. The IP protocol sends data packets to the destination host based on … Read more
This article is a translation of “Let’s code a TCP/IP stack, 1: Ethernet & ARP”. The translation process is also a learning experience for myself. Writing your own TCP/IP stack may seem like a daunting task. In fact, TCP has accumulated many specifications over its more than thirty years of life. However, the core specifications … Read more
The development of computer networks has come a long way. The various communication software we use today undoubtedly relies on computer networks. But do you know the background of the emergence of computer networks? We have eliminated the phenomenon of information silos now, but several years ago, did you know that computer networks could help … Read more
4 Network Layer IP The transmission of packets mainly goes through Application Layer, Transport Layer, Network Layer, and Link Layer. Following the explanation of the application layer HTTP and Transport Layer TCP, the application layer data is encapsulated by the transport layer and then needs to be encapsulated by the network layer. The core task … Read more
1. Overview of Computer Networks 1.1 Classification of Computer Networks According to the scope of the network: Wide Area Network (WAN), Metropolitan Area Network (MAN), Local Area Network (LAN); According to the users of the network: Public network, Private network. 1.2 Hierarchical Structure of Computer Networks Comparison of the TCP/IP four-layer model and the OSI … Read more
Click the blue text above to follow us Resource Release Huawei Certification Beginner to Advanced Practical Course ↓ Scan to watch the video online ↓ 1. Broadcast Domain As shown in the figure, an Ethernet composed of one or more switches has all stations within the same broadcast domain. As more switches are added, the … Read more
Introduction: In China’s “Artificial Intelligence Standardization White Paper (2018)”, a definition of artificial intelligence is given: “Artificial intelligence is the theory, methods, technologies, and application systems that utilize digital computers or machines controlled by digital computers to simulate, extend, and enhance human intelligence, perceive the environment, acquire knowledge, and use knowledge to achieve optimal results.”“ … Read more