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TCP Connection State Transitions TCP connections progress through specific states during establishment and termination. The protocol defines 11 distinct states: State Categories Client-specific states: SYN_SENT, FIN_WAIT1, FIN_WAIT2, CLOSING, TIME_WAIT Server-specific states: LISTEN, SYN_RCVD, CLOSE_WAIT, LAST_ACK Shared states: CLOSED, ESTABL ...

Introduction to I/O Multiplexing In traditional I/O models, functions like read() and write() handle both the waiting phase and the data transfer phase of I/O operations. Since I/O efficiency is primarily determined by waiting time, a new paradigm emerged: delegate the waiting process to a dedicated mechanism that monitors multiple file descrip ...

This article walks through the implementation of a custom PipelineFilter in SuperSocket 2.0. The development environment is Windows 10, Visual Studio 2019, .NET Core 3.1, and SuperSocket 2.0.0-beta.8. 1. Project Creation Create a .NET Core console application using Visual Studio 2019 targeting .NET Core 3.1, and add the SuperSocket (2.0.0-beta. ...

User Datagram Protocol (UDP) provides a connectionless method for transmitting data across a network. Unlike TCP, UDP does not establish a persistent connection, making it suitable for scenarios where speed is prioritized over guaranteed delivery. Core UDP Communication Components UDP communication typically involves two primary classes: Datagr ...

OSI Model and EncapsulationData transmission across the ISO OSI seven-layer model involves encapsulation. Each layer prepends a header to the payload, with the data link layer appending an additional trailer. Decapsulation reverses this process, stripping headers and trailers as data moves up the stack.Transmission Control Protocol (TCP) Mechan ...

Understanding Network SocketsNetwork applications communicate through endpoints known as sockets. A socket serves as an abstraction for a network connection, relying on the underlying TCP/IP protocols managed by the operating system to route data. Programming languages like Java supply classes such as ServerSocket and Socket to wrap these nativ ...