802.11v Packet Formats 
==========================

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        **What are 802.11v packet formats?**

        They define the structure of frames used to exchange management, control, and data information with 802.11v features.

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        **How do 802.11v packet formats differ from standard 802.11?**

        802.11v extends standard management frames with additional information elements for network management.

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        **What types of frames are modified in 802.11v?**

        Management frames like Action frames and Beacon frames are enhanced with 802.11v-specific fields.

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        **What is an Action frame in 802.11v?**

        It’s a management frame subtype used for network management functions like BSS Transition and measurements.

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        **What Information Elements (IEs) are introduced in 802.11v?**

        Elements such as BSS Transition Candidate List, BSS Transition Management Request, and Measurement Request IEs.

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        **How are BSS Transition Management frames formatted?**

        They contain specific IEs defining candidate APs and transition timing for client roaming assistance.

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        **Are 802.11v packets backward compatible?**

        Yes, packets maintain compatibility with legacy 802.11 devices by extending, not replacing, frame structures.

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        **How does 802.11v support Network Assisted Power Saving in packets?**

        Special IEs in management frames communicate power-saving information between AP and clients.

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        **What role do Measurement Request and Report frames play?**

        They enable clients to measure and report network conditions, helping the AP optimize performance.

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        **What is the format of a Measurement Report frame?**

        It includes details like measurement type, duration, and results such as channel load or noise.

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        **How are Extended Capabilities signaled in 802.11v packets?**

        Through IEs that indicate support for specific 802.11v features like BSS Transition and network-assisted power save.

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        **What is a BSS Transition Candidate List IE?**

        A list included in management frames that suggests alternative APs for client roaming.

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        **Do 802.11v packets include security features?**

        Yes, they incorporate fields compatible with existing security protocols to protect management exchanges.

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        **How are 802.11v Action frames identified?**

        By their Category field set to ‘Radio Management’ with specific Action field codes for 802.11v functions.

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        **Are vendor-specific elements used in 802.11v packets?**

        Occasionally, for proprietary extensions, but core 802.11v uses standardized IEs.

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        **How do packet formats enable seamless client roaming?**

        By exchanging transition candidate lists and requests that guide client handoffs with minimal disruption.

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        **What is the size impact of 802.11v packet extensions?**

        Slightly larger management frames due to added IEs, but optimized to minimize overhead.

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        **Can 802.11v packets carry custom data?**

        Not typically; they focus on standard management and control information for network optimization.

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        **Where can detailed 802.11v packet format specs be found?**

        In the official IEEE 802.11v amendment document and related IEEE 802.11 management frame specifications.


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        Topics in this section,

                * :ref:`Reference links <packet_formats_v_step17>`


.. _packet_formats_v_step17:

.. tab-set::

    .. tab-item:: Reference links

       * Reference links