Jim Gettys has another post on bufferbloat, this time looking
at "big fat networks"
. "A simple concrete optimal example of such a busy network might be 25 802.11 nodes, each with a single packet buffer; no transmit ring, no device hardware buffer, trying to transmit to an access point. Some nodes are far away, and the AP adapts down to, say 2Mbps. This is common. You therefore have 25 * 1500 bytes of buffering; this is > .15 seconds excluding any overhead, if everything goes well; the buffers on the different machines have "aggregated" behavior. This is the optimal case for such a busy network. Even a 802.11g network with everyone running full speed will only be about 10 times better than this.
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