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A Transmission Control Protocol (TCP) port is a logical endpoint for a connection between two devices that use TCP to communicate. TCP is a core internet protocol that ensures reliable and ordered data delivery. TCP is connection-based, meaning the client and the server must be established before the data is sent. TCP is more reliable than UDP (user datagram protocol) but transfers data more slowly. TCP and UDP are part of the Internet Protocol (IP) suite, sometimes called TCP/IP. They form what's called the transport layer and define process-to-process communication.

A Transmission Control Protocol (TCP) port is a logical endpoint for a connection between two devices that use TCP to communicate. TCP is a core internet protocol that ensures reliable and ordered data delivery. TCP is connection-based, meaning the client and the server must be established before the data is sent. TCP is more reliable than UDP (user datagram protocol) but transfers data more slowly. TCP and UDP are part of the Internet Protocol (IP) suite, sometimes called TCP/IP. They form what's called the transport layer and define process-to-process

UDP (User Datagram Protocol) is a fundamental protocol in the Internet Protocol (IP) suite, essential for establishing low-latency and loss-tolerant connections between internet applications. Unlike TCP, UDP is connectionless, prioritizing speed over reliability by not guaranteeing packet delivery. Day 11 #TryHackMe

Understand Difference Between TCB and socket: TCB (Transmission Control Block) and socket are both fundamental concepts in networking, but they serve different purposes: 1. TCB: ● TCB is a data structure used by the TCP (Transmission Control Protocol) to manage the state of each active connection. ● It holds information such as sequence numbers, window sizes, connection state, and other parameters required for reliable communication between two hosts. ● TCB is managed by the operating system's TCP/IP stack. 2. Socket: ● A socket is an endpoint for communication between two machines over a network. ● It is identified by an IP address and a port number. ● Sockets are used by applications to establish connections and exchange data over the network. ● There are two types of sockets: stream sockets, typically used with TCP, and datagram sockets, typically used with UDP (User Datagram Protocol). In summary, TCB is an internal data structure used by the TCP protocol to manage connections, while a socket is an abstraction provided to applications for network communication. The socket interfaces with the TCB to establish and manage connections. #tcp #tcb #socket #networkengineer #Cisco #learning #pmnetworking

How the universal internet TCP/IP transport protocol is used for the #Modbus messaging structure. Modbus Organization #industrialnetworking

I have come to realise that UDP based communications (Bacnet, Trend Control Systems Protocol and others) are the biggest problem in larger installations. They are not designed for what is being asked of them, they are not designed to be deployed without any thought or consideration of segregation. Recently I have learned that routing via Bacnet IP on a Trend IQ4 cannot be disabled this further compounds the issue. Unstable systems causing controller failure or reboots or unable to get data efficiently are the main symptoms of this. So the next large scale project you design consider these points and avoid using these communications and if you have to use port segregation and have no more than 100 BACNet controllers on any single port and no more than 5 large Trend Controllers on any system. TCP/IP based comms are the future.

While the OSI model for data traveling is a strong one, there is a more practical implementation of this model in TCP/IP protocol which is a primary nowadays for sending data. #IP makes sure packets arrive at the right destination, and #TCP ensures that packets arrive safely and in the correct order. TCP/IP is a practical, comparatively simple way to approach data traveling. Yet, it has its distinctive 4 layers: 1. #NetworkInterfaceLayer on which data is being transmitted between modes on the same network 2. #InternetLayer that forwards data to the destination 3. #TransportLayer that is responsible for delivering data between apps on separate hosts 4. #ApplicationLayer that provides the interface

The Spanning Tree Protocol (STP) is a network protocol that is situated in Layer 2 (Data Link Layer) of the Open Systems Interconnection (OSI) model. It was built to prevent the problems that arise when data is exchanged through computers over a Local Area Network (LAN). If 2-3 switches are connected together, they broadcast by default. When a message is broadcasted, it is sent all across the switches back and forth. This could lead to a broadcast storm or the formation of a loop.

Want to connect devices from OPC UA, HTTP, S7comm, and more inputs? Try our protocol converter, which additionally allows you to organize the data within the ISA95 hierarchy. Watch Denis's tutorial on how to use the UMH protocol converter, based on the open-source Benthos-UMH project. This tutorial requires a running UMH instance and at least the demo version. You can get the free community edition here: https://www.umh.app/ #ProtocolConverter #HTTP #S7comm #ISA95 #nodered #mqtt #OpenSource