Arg. TCP slow start killing me.

Erich Weiler weiler at soe.ucsc.edu
Mon Nov 14 00:33:12 UTC 2011


Actually, another question might be:  How can I prove that my firewall 
really is dropping packets in transit, as it forwards them on?  Is there 
some sysctl oid that would show dropped packets, so some netstat counter 
I can look at?

On 11/13/11 4:22 PM, Erich Weiler wrote:
>> Yeah, skimming fail, I didn't realize the machine was not the
>> termination point of your connections. I do have patches back ported
>> that would likely get the modular congestion control working on 8.1,
>> but neither my suggestions nor the implementation of Cubic will help
>> much as mentioned.
>
> Given that my firewall is simply forwarding packets in and out, and is
> not an endpoint, does anyone think tuning up buffers would help here? If
> so, which buffers/sysctl parameters would be worth trying?
>
> Thanks for the help everyone!
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