How to Perfectly Combine Siemens PLC with Real-Time Database? Unveiling the Core Technology of High-Speed Data Processing to Support Industrial Big Data Applications! Hello everyone, I am Hanhan! Today we will discuss the “super combination” in the industrial field— the perfect combination of Siemens PLC and real-time databases. This duo is like the “Superhero Alliance” … Read more
The discussion of HTTP performance here is based on the simplest model, which is the HTTP performance of a single server. Of course, this also applies to large-scale load-balanced clusters, as such clusters are composed of multiple individual HTTP servers. Additionally, we exclude scenarios where the client or server itself is under heavy load or … Read more
In daily life, when shopping online or mailing an item, one must fill out both parties’ addresses, contact information, and whether insurance is needed, among other details. Additionally, the courier company may have other regulations that need to be included in the purchase and mailing details. The purpose of these actions is to ensure the … Read more
Background Having been in a long-distance relationship with my girlfriend for over a year, I suggested that we video chat every night to maintain our feelings. Since we started dating, we have managed to keep this up for over a year. Problem Sometimes during our chats, either my network or hers might be unstable, causing … Read more
Source: https://juejin.im/post/6844903490595061767 Author: Ruheng 1. TCP/IP Model The TCP/IP protocol model (Transmission Control Protocol/Internet Protocol) includes a series of network protocols that form the foundation of the Internet and is the core protocol of the Internet. The reference model based on TCP/IP divides the protocols into four layers: Link Layer, Network Layer, Transport Layer, and … Read more
This article is reprinted from WeChat public account: Linwan Village Chinchilla 1. Introduction TCP is a connection-oriented protocol. Before either party sends data in any direction, a connection must be established between the two parties. The state transition diagram for connection creation and termination is as follows: 2. Three-Way Handshake to Establish Connection The process … Read more
Click the “Learn Algorithms in Five Minutes” above and choose the “Star” public account Heavy content delivered first Source: Juejin, Author: Ruheng Link: https://juejin.im/post/6844903490595061767 1. TCP/IP Model The TCP/IP protocol model (Transmission Control Protocol/Internet Protocol) includes a series of network protocols that form the foundation of the Internet and is the core protocol of the … Read more
High-definition image, sourced from the internet. Suggestions: 1) View on PC 2) If viewing on mobile, please click the image to zoom Application Layer, Presentation Layer, Session Layer: HTTP, FTP, SMTP, POP3, encryption and decryption, compression and decompression, session management Transport Layer: TCP, UDP, ensuring data segments arrive effectively Network Layer: IP, ICMP, RIP, packet … Read more
The establishment of a TCP connection can be simply referred to as a three-way handshake, while the termination of the connection can be called a four-way handshake. TCP is a connection-oriented protocol, so both parties need to establish a connection before sending data. This is completely different from the protocols discussed earlier. All the previous … Read more
Background: I have been in a long-distance relationship with my girlfriend for over a year. To maintain our relationship, I suggested that we video chat every night. Since we started dating, we have managed to stick to this for over a year. Author: Champin, Original: https://my.oschina.net/u/3708120/blog/1581023 Issue Sometimes during our chats, either my network or … Read more