Sliding Window

(n.) Also referred to as windowing, a method of flow control for transferring data over networks. TCP sends data across a network in packets and requires the receiving device to send an acknowledgement, or ACK, when it successfully has received the packet, which signals the sending device that another packet can be sent. Window size is the number of data packets that can be sent without waiting for an ACK. With the sliding window method, the receiving device can send a single acknowledgement message for multiple packets of data sent in one window. Within that acknowledgement message is information about the receiving device s buffer size, which tells the sending device to increase or decrease the number of packets in the next transmission (this is where the “sliding” in the name comes in). If the application reading the data processes the packets at a slower rate than the sending device is transmitting them, it will tell the sending device to decrease the number of packets or temporarily cease transmission altogether, in order to free up room in the buffer; if the receiving application can process the packets faster than the sending device is transmitting them, it will tell the sending device to increase the number of packets in the next window as the application s buffer can handle more data.

Top Articles

Huge List Of Texting and Online Chat Abbreviations

From A3 to ZZZ we list 1,559 text message and online chat abbreviations to help you translate and understand today's texting lingo. Includes Top...

How To Create A Desktop Shortcut To A Website

This Webopedia guide will show you how to create a desktop shortcut to a website using Firefox, Chrome or Internet Explorer (IE). Creating a desktop...

The History Of Windows Operating Systems

Microsoft Windows is a family of operating systems. We look at the history of Microsoft's Windows operating systems (Windows OS) from 1985 to present...

Hotmail [Outlook] Email Accounts

  By Vangie Beal Hotmail is one of the first public webmail services that can be accessed from any web browser. Prior to Hotmail and its...

Legacy Code Definition &...

Legacy code refers to source code that has been inherited from a previous...

Unregulated Power Supply Definition...

An unregulated power supply is a system that transforms input voltage into direct...

Cybersecurity Awareness Training Definition...

Cybersecurity awareness training informs employees of the attack surfaces and vectors in their...