[Codel] About Packet Drop in Codel

[Jonathan Morton]

In fact, this is the fundamental point of AQM. Dropping (or marking)
occasional packets in order to signal congestion to the hosts, which then
know to back offand avoid filling the buffer.

A related fundamental point is that a full buffer means induced delay -
potentially lots of it.

Missing those fundamental points will make it very difficult for you to
conduct any sort of coherent research into AQM.

- Jonathan Morton
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