Geneve - Generic Network Virtualization Encapsulation
=======================================================

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        **What is Geneve?**

        Geneve (Generic Network Virtualization Encapsulation) is a network virtualization tunneling protocol designed to encapsulate Layer 2 Ethernet frames within UDP packets for transport across Layer 3 networks.

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        **Why is Geneve useful?**

        Geneve is useful for enabling flexible, scalable network virtualization in data centers. It provides better extensibility and efficiency compared to earlier tunneling protocols like VXLAN and NVGRE.

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        **How it works?**

        Geneve encapsulates Ethernet frames into UDP packets with a Geneve header. It allows for optional metadata fields, enabling integration with SDN controllers and network functions. The encapsulated packets are transported over an IP network.

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        **Where is Geneve used?**

        Geneve is primarily used in modern data center environments, particularly in Software Defined Networking (SDN), Network Functions Virtualization (NFV), and cloud infrastructure platforms like OpenStack and VMware NSX.

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        **Which OSI layer does this protocol belong to?**

        Geneve operates at Layer 2 (Data Link) for encapsulation but is transported over Layer 3 (Network) using UDP, making it a cross-layer protocol.

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        **Is Geneve Windows specific?**

        No, Geneve is not Windows specific. It is a protocol implemented by network devices and platforms, and can be supported on Windows if networking drivers and hypervisors implement it.

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        **Is Geneve Linux specific?**

        No, but Linux has robust support for Geneve through the kernel, Open vSwitch (OVS), and cloud-native networking stacks.

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        **Which Transport Protocol is used by Geneve?**

        Geneve uses **UDP** as the transport protocol.

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        **Which Port is used by Geneve?**

        Geneve typically uses **UDP port 6081**.

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        **Is Geneve using Client server model?**

        No, Geneve does not use a client-server model. It is a tunneling and encapsulation protocol used for network transport.

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        Topics in this section,

                * :ref:`Learnings in this section <Geneve_step1>`

                * :ref:`Terminology <Geneve_step2>`

                * :ref:`Version Info <Geneve_step3>`

                * :ref:`Geneve Version&IEEE Details <Geneve_step5>`

                * :ref:`Geneve Basic Setup on Ubuntu using IPv4 <Geneve_step18>`

                * :ref:`Geneve Basic Setup on Ubuntu using IPv6 <Geneve_step19>`

                * :ref:`Geneve Protocol Packet Details <Geneve_step6>`

                * :ref:`Geneve Usecases <Geneve_step7>`

                * :ref:`Geneve Basic Features <Geneve_step8>`
                    
                * :ref:`Reference links <Geneve_step17>`


.. _Geneve_step1:

.. tab-set::

    .. tab-item:: Learnings in this section

        * In this section, you are going to learn

.. _Geneve_step2:

.. tab-set::

    .. tab-item:: Terminology
        
       * Terminology


.. _Geneve_step3:

.. tab-set::

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


.. _Geneve_step5:

.. tab-set::

    .. tab-item:: Geneve Version&RFC Details

        * rfc details

.. _Geneve_step18:

.. tab-set::

    .. tab-item:: Geneve Basic Setup on Ubuntu using IPv4

       * setup

.. _Geneve_step19:

.. tab-set::
  
   .. tab-item:: Geneve Basic Setup on Ubuntu using IPv6

     * setup
       
.. _Geneve_step6:

.. tab-set::

    .. tab-item:: Geneve Protocol Packet Details

        * packet details
       


.. _Geneve_step7:

.. tab-set::

    .. tab-item:: Geneve Usecases

       * usecases
        
        

.. _Geneve_step8:

.. tab-set::

    .. tab-item:: Geneve Basic Features
    
        * features 



.. _Geneve_step17:

.. tab-set::

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