Sliding Window

What is Sliding Window?

Definition and meaning of Sliding Window

Sliding Window is a technique for conTrolling transmitted inFormation Packets among two Network Computers where reliable and sequential delivery of information packets is required, such as when the use of the Data Link Layer (OSI Model) or Transmission Control Protocol (TCP).

In the sliding window approach, each facts packet (for most statistics link Layers) and byte (in TCP) consists of a unique consecutive sequence number, which is utilized by the receiving Laptop to area Records in the ideal order. The Objective of the sliding window Method is to apply the series numbers to avoid reproduction records and to request missing statistics.

Sliding window is likewise called windowing.

What Does Sliding Window Mean?

The sliding window approach locations various limits at the Range of records packets which might be sent before looking ahead to an acknowledgment Signal back from the receiving pc. The range of Data Packets is known as the window size. The limits on window size vary depending at the fee at which the receiving pc can method the records packets, and on the capability of its Buffer.

If the Software in the receiving Computer techniques the facts packets at a slower rate than the sending laptop is sending them, the acknowledgment sign from the receiving laptop will inform the sending Computer to decrease the range of packets inside the window length inside the subsequent transmission, or to briefly prEvent transmission to unfastened the buffer. If, alternatively, the receiving application can technique the information packets faster than the sending pc is sending them, the acknowledgment sign will inform the sending laptop to boom the number of packets inside the subsequent transmission. For green records packet transmission, the Transmitter need to not be forced to stop sending for an unnecessarily long time. This will happen if the receiving pc sends an acknowledgment signal to stop and does not send every other signal to start transmitting while its buffer has to be had area or is empty. Other concerns for efficient statistics packet transmission encompass:

• Round-ride delay time
• End-to-cease delay
• Bandwidth put off

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