Latency, TCP ACKs and upload needs
swmike at swm.pp.se
Wed Apr 20 15:51:44 UTC 2016
On Tue, 19 Apr 2016, Jean-Francois Mezei wrote:
> Considering a single download TCP connection. I am aware that modern TCP
> stacks will rationalize ACKs and send 1 ACK for every x packets
> received, thus reducing upload bandwidth requirements. Is this basically
> widespread and assumed that everyone has that ?
Typically you'll see one ACK per 2 packets, so you need approximately 1:50
bytes up/down ratio for the ACKs.
It's possible to have middle boxes suppress some ACKs, please see thread
Mikael Abrahamsson email: swmike at swm.pp.se
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