[Tfug] Linux kernel tcp delay options

Adrian choprboy at dakotacom.net
Fri Jun 7 14:16:14 MST 2013


On Friday 07 June 2013 13:20, Nick Lopez wrote:
> On Jun 6, 2013, at 12:47 PM, Adrian <choprboy at dakotacom.net> wrote:
> > Does anybody know of a sysctl option to disable TCP delayed ack/turn off
> > nagle? I am having a Cyrus issue which I think is do to the built in TCP
> > delay/data packet aggregation, I need to temporarily turn it off to
> > confirm... but there doesn;t seem to be any option to do so in the
> > kernel.
>
>   There's a Cisco device involved, isn't there? :) I've had performance
> issues SACK and Cisco FWSMs, so net.ipv4.tcp_sack might be something to try
> turning off. I thought there was a sysctl for delayed ack, but I'm only
> seeing it on OSX now, not Linux.
>

Nope... no Cisco anywhere in the router chain. All various switches and 
Mikrotik (linux based) routers.


Adrian





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