Wireless Access

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Access network design for branch, remote, outdoor and campus locations with Aruba access points, and mobility controllers.
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About 802.11 broadcast frames

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  • 1.  About 802.11 broadcast frames

    Posted Sep 14, 2017 02:32 PM

    Hi community,

     

    Do you know how broadcast frames are handled in Wi-Fi? I have been googling but the information I have found in several sites is contradictory. This is some sentences I have found about when an AP sends a broadcast frame:

     

    • Broadcast frames are converted to unicast and sent independently to every single station associated with the AP.
    • Broadcast frames are sent as usual and every station is able to understand them.
    • Broadcast frames are acknowledged by every station.
    • Broadcast frames do not need to be acknowleged.

    Do you know what of these senteces are true? Or does the behaviour depends on the vendor?



  • 2.  RE: About 802.11 broadcast frames

    Posted Sep 14, 2017 02:35 PM

    This book will answer a majority of your questions on here:

    https://www.amazon.com/CWNA-Certified-Wireless-Administrator-Official/dp/111812779X



  • 3.  RE: About 802.11 broadcast frames
    Best Answer

    Posted Sep 19, 2017 04:07 PM

    Well, after browsing at this book and others, I can conclude that broadcast frames are sent as usual (not converted to unicast) and every station will hear them. In addition, these broadcast frames do not need to be acknowledged.