Re: [vpp-dev] TCP delay ACK

[liuyacan]

Hi  Florin,

     Oh, I just found it by accident When I compare the packet capture result with the kernel's.

Best regards,

Yacan

On 3/24/2021 15:09，Florin Coras<fcoras.li...@gmail.com> wrote：

Hi Yacan, 

We don’t support delayed acks on purpose, the reasoning being that by construction we only send an ack per burst of packets received. Moreover, delayed acks tend to interfere with congestion control algorithms and rtt estimators. 

Out of curiosity, why are you looking into that?

Regards,

Florin

On Mar 23, 2021, at 10:57 PM, liuyacan <liuya...@corp.netease.com> wrote:

Hi All,

     It seems that  macro TCP_ALWAYS_ACK is not used now，Are there any considerations? Is there any way I can Enable delay ACK ?

Best regards,

yacan

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