[Cake] [PATCH net-next v12 3/7] sch_cake: Add optional ACK filter

Eric Dumazet eric.dumazet at gmail.com
Thu May 17 07:56:26 EDT 2018

On 05/17/2018 04:23 AM, Toke Høiland-Jørgensen wrote:

> We don't do full parsing of SACKs, no; we were trying to keep things
> simple... We do detect the presence of SACK options, though, and the
> presence of SACK options on an ACK will make previous ACKs be considered
> redundant.

But they are not redundant in some cases, particularly when reorders happen in the network.

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