nanog mailing list archives
Re: Latency, TCP ACKs and upload needs
From: Mikael Abrahamsson <swmike () swm pp se>
Date: Wed, 20 Apr 2016 17:51:44 +0200 (CEST)
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 here:
https://www.ietf.org/mail-archive/web/aqm/current/msg01482.html -- Mikael Abrahamsson email: swmike () swm pp se
Current thread:
- Re: Latency, TCP ACKs and upload needs, (continued)
- Re: Latency, TCP ACKs and upload needs Eric Kuhnke (Apr 19)
- Re: Latency, TCP ACKs and upload needs joel jaeggli (Apr 19)
- Re: Latency, TCP ACKs and upload needs Eric Kuhnke (Apr 19)
- Re: Latency, TCP ACKs and upload needs Leo Bicknell (Apr 20)
- Re: Latency, TCP ACKs and upload needs Jean-Francois Mezei (Apr 20)
- Re: Latency, TCP ACKs and upload needs Lee (Apr 20)
- Re: Latency, TCP ACKs and upload needs Tony Finch (Apr 20)
- Re: Latency, TCP ACKs and upload needs Eygene Ryabinkin (Apr 21)
- Re: Latency, TCP ACKs and upload needs Chris Welti (Apr 24)
- Re: Latency, TCP ACKs and upload needs Lee (Apr 20)
- Re: Latency, TCP ACKs and upload needs Mikael Abrahamsson (Apr 20)