On 11/13/11 10:54 PM, Erich Weiler wrote:
Have you considered empty ACK prioritization? I implemented this a year
ago on a pair of production edge routers and noticed significant
improvement on throughput. I have production code examples if you
require them, but this link should be more than enough to get you started:

Fascinating. pfSense does have traffic shaping options, among them ACK prioritization and queues. Let me play with that a bit. Totally could be affecting me - my downstream traffic could be great enough to crowd out ACKs, thus causing the TCP stream resets. Sounds plausible, at least.

As I said before, try shaping traffic in each direction to be just a little less than what the other limits (e.g. your link) might be.

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