Forum

  • In a 802.11g environment can short slot be used
    when


    CAp info
    -----------
    Short preamble =0

    Erp:
    -----
    Non -Erp present =0
    Barker mode = 0
    Enable protection =0

    Help me guys.

    Best Regards,
    S.Senthilraj

  • I use a Linksys AP for my tests.I got the Answer for my question.
    Yeahhhh...

    I think in Mixed Mode 802.11g AP doesnt use Short Preambles.
    But when there is no Non-ERP client associated they tend to use Short slot time.

    In 802.11G Mixed mode and no NON-ERP
    -----------------------------------------------

    short preamble =0
    slot time = 9ms


    Barker mode = 0
    Non ERP = 0
    Use protection =0

    In 802.11G Only mode
    --------------------------

    short preamble =1
    slot time = 9ms


    Barker mode = 0
    Non ERP = 0
    Use protection =0

    In 802.11G Mixed mode with a NON-ERP which is only Long Preamble
    -----------------------------------------------------------------------------Capable
    ----------
    short preamble =0
    slot time = 20 ms


    Barker mode = 1
    Non ERP = 1
    Use Protection =1

    In 802.11G Mixed mode with a NON-ERP ( Long and short preamble Capable but currently using long)
    ----------------------------------------
    short preamble =0
    slot time = 20 ms


    Barker mode = 0
    Non ERP = 1
    Use protection = 1


    Good that i found out the answer myself and didnt waste others time .

Page 1 of 1
  • 1