Error Detection
=================

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        **What is Error Detection?**

        Error detection is a technique used in networking to identify if data has been altered during transmission. It ensures data integrity by detecting corrupted or tampered packets.

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        **Why is Error Detection useful?**

        It ensures that the data received is the same as what was sent. This is crucial for reliable communication, especially in noisy or unreliable networks.

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        **How does Error Detection work?**

        It works by using algorithms like checksums, cyclic redundancy checks (CRC), or parity bits. The sender computes a value based on the data, and the receiver recalculates it to verify accuracy.

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        **Where is Error Detection used?**

        Error detection is used in almost all networking layers and protocols — such as Ethernet, TCP/IP, Wi-Fi, and storage systems — to ensure data integrity.

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        **Which OSI layer does Error Detection belong to?**

        Error detection can occur at multiple OSI layers — especially at the **Data Link Layer (Layer 2)** and the **Transport Layer (Layer 4)**.

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        **Is Error Detection Windows specific?**

        No, error detection is not specific to Windows. It is a fundamental concept implemented in hardware and software across all systems.

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        **Is Error Detection Linux specific?**

        No, it is universally implemented across all major operating systems, network devices, and communication protocols.

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        **Which Transport Protocol is used by Error Detection?**

        TCP uses error detection through checksums at the Transport Layer. However, error detection also exists in lower layers like Ethernet (CRC) and IP headers.

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        **Is Error Detection using client-server model?**

        No, error detection is a communication feature, not a model. It operates independently of client-server architecture to ensure correct data delivery.


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        Topics in this section,

                * :ref:`Learnings in this section <Error_Detection_step1>`

                * :ref:`Terminology <Error_Detection_step2>`

                * :ref:`Version Info <Error_Detection_step3>`

                * :ref:`Error_Detection  Basic Setup on Ubuntu using IPv4 <Error_Detection_step18>`

                 * :ref:`TCP Feature : Error Detection <Error_Detection_step4>`
                
                * :ref:`Reference links <Error_Detection_step17>`

.. _Error_Detection_step1:

.. tab-set::

    .. tab-item:: Learnings in this section

        * In this section, you are going to learn

.. _Error_Detection_step2:

.. tab-set::

    .. tab-item:: Terminology
        
       * Terminology


.. _Error_Detection_step3:

.. tab-set::

    .. tab-item:: Version Info
    
         * Version Info


.. _Error_Detection_step18:

.. tab-set::

   .. tab-item:: Error_Detection Basic Setup on Ubuntu using IPv4
       
      * setup

.. _Error_Detection_step4:

.. tab-set::

    .. tab-item:: TCP Feature : Error Detection

        **Error Detection - Testcases**

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                 :file: ./TCP_Feature3_Error_detection_Test_Cases.csv
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.. _Error_Detection_step17:

.. tab-set::

    .. tab-item:: Reference links
     
       * Reference links