TRILL - Transparent Interconnection of Lots of Links
=======================================================

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        **What is TRILL?**

        TRILL (Transparent Interconnection of Lots of Links) is a networking protocol designed to improve the scalability and performance of Ethernet networks by combining the advantages of bridging and routing.

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        **Why is TRILL useful?**

        * It prevents loops like Spanning Tree Protocol but allows all paths to be used for forwarding.
        * Provides faster convergence and better load balancing.
        * Enables large and complex Layer 2 networks with improved reliability.

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        **How it works?**

        * Uses IS-IS (Intermediate System to Intermediate System) routing protocol for path computation.
        * Encapsulates Ethernet frames with a TRILL header for transport between switches (called RBridges).
        * Supports multipath routing to use all available paths.
        * Ensures loop-free topology with shortest path forwarding.

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        **Where is TRILL used?**

        * Large data centers and enterprise networks.
        * Environments requiring scalable and efficient Layer 2 network topologies.
        * Networks that need better traffic distribution and faster failover than STP.

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

        * TRILL operates at the Data Link Layer (Layer 2) with routing capabilities.
        * It bridges the gap between traditional bridging and routing.

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        **IS TRILL windows specific?**

        * No, TRILL is not Windows-specific.
        * It is implemented in network switches regardless of OS.

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        **IS TRILL Linux Specific?**

        * No, TRILL is not Linux-specific.
        * It is a protocol implemented in network hardware and software across platforms.

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

        * TRILL uses the IS-IS routing protocol which runs directly over Layer 2.
        * It does not use TCP or UDP.

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        **Which Port is used by TRILL?**

        * TRILL does not use traditional TCP/UDP ports.
        * It communicates directly over Layer 2 Ethernet frames using a reserved EtherType (0x22F3).

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        **Is TRILL using Client server model?**

        * No, TRILL is a distributed protocol.
        * Network devices called RBridges exchange information peer-to-peer to build the network topology.

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        Topics in this section,

                * :ref:`Learnings in this section <TRILL_step1>`

                * :ref:`Terminology <TRILL_step2>`

                * :ref:`Version Info <TRILL_step3>`

                * :ref:`TRILL Version&IEEE Details <TRILL_step5>`

                * :ref:`TRILL Basic Setup on Ubuntu using IPv4 <TRILL_step18>`

                * :ref:`TRILL Basic Setup on Ubuntu using IPv6 <TRILL_step19>`

                * :ref:`TRILL Protocol Packet Details <TRILL_step6>`

                * :ref:`TRILL Usecases <TRILL_step7>`

                * :ref:`TRILL Basic Features <TRILL_step8>`
                    
                * :ref:`Reference links <TRILL_step17>`


.. _TRILL_step1:

.. tab-set::

    .. tab-item:: Learnings in this section

        * In this section, you are going to learn

.. _TRILL_step2:

.. tab-set::

    .. tab-item:: Terminology
        
       * Terminology


.. _TRILL_step3:

.. tab-set::

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


.. _TRILL_step5:

.. tab-set::

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

        * rfc details

.. _TRILL_step18:

.. tab-set::

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

       * setup

.. _TRILL_step19:

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

     * setup
       
.. _TRILL_step6:

.. tab-set::

    .. tab-item:: TRILL Protocol Packet Details

        * packet details
       


.. _TRILL_step7:

.. tab-set::

    .. tab-item:: TRILL Usecases

       * usecases
        
        

.. _TRILL_step8:

.. tab-set::

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



.. _TRILL_step17:

.. tab-set::

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