[Cake] Query on ACK

[Sebastian Moeller]

Dear All,

just as a side-note. I believe that ACK filtering is one more application that directly profits from flow-queueing (as the set of packets to compare with is already separated out from the set of all queued packets), as one needs to collect ACKs according to their 4-Tuples which FQ does naturally. 

Best Regards
	Sebastian




> On May 7, 2020, at 09:07, Sebastian Moeller <moeller0 at gmx.de> wrote:
> 
> I think that you will remove all redundant Backs in one go considerably advancing the new ACK in the queue. And more importantly, in most relevant modes cake will apply one queue per flow stochastically, so almost all packet's in a reverse ACK flow will be ACK with identical 5-tupel....
> 
> On 7 May 2020 08:44:59 CEST, Avakash bhat <avakash261 at gmail.com> wrote:
> 
> Thanks for the quick response. I also had a followup question. 
> 
> If the ack filter adds the new ack to the tail of the queue after removing an ack from the queue, won't it be starving the ack? 
> The replaced ack was much ahead in the queue than the ack we replaced at the tail right?
> 
> Thanks,
> Avakash Bhat
> 
> -- 
> Sent from my Android device with K-9 Mail. Please excuse my brevity.
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