[Bloat] wifi AP switching time

[Michael Richardson]

I asked
    > A comment was made a month ago or so about how long it takes wifi APs
    > to switch from transmitting (unicast) to one station to another.  That
    > there was quite a large latency here, and that this was one reason that
    > the AP designers wanted large buffers to accmulate, so that the
    > switching time could be amortized over a larger number of packets.

Pedro Tumusok <pedro.tumusok at gmail.com> replied
    > I might be way of here, but to me this sounds like a-mpdu which is
    > used to aggregate frames to get higher throughput. Thats in the
    > specification, its 
    > in 802.11ac and I believe that it go introduced with 802.11n.
    > 
    > It is there to mitigate the overhead of aquiring the channel.

Does this mean that 802.11a,b do not suffer from this problem?

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]   Michael Richardson, Sandelman Software Works        | network architect  [ 
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