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Date:      Wed, 3 Dec 2014 23:19:58 +0100
From:      Patrick Proniewski <patpro@patpro.net>
To:        Borja Marcos <borjam@sarenet.es>
Cc:        freebsd-net@freebsd.org, Steven Hartland <killing@multiplay.co.uk>
Subject:   Re: Horrendous upload network performance with VLAN (download seems OK)
Message-ID:  <998EBE7C-A619-41AA-9561-7276CDFF24A9@patpro.net>
In-Reply-To: <F537F496-27F4-4E31-850A-641C8F3719AC@sarenet.es>
References:  <727AB395-CF83-4D13-A2C3-50969C2969B0@patpro.net> <547F3352.3040101@multiplay.co.uk> <43C2162E-2B9F-437F-B4CF-E792CEC5DA7B@patpro.net> <DC8D5BD7-8743-4AB9-952B-54822723610D@sarenet.es> <E3234CED-CEB4-48AF-B3F9-1492AFF4DB46@patpro.net> <F537F496-27F4-4E31-850A-641C8F3719AC@sarenet.es>

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On 03 d=E9c. 2014, at 17:25, Borja Marcos wrote:

> TSO can be disabled in a global way using a sysctl variable: =
net.inet.tcp.tso

That's it! I've set net.inet.tcp.tso to 0 in /etc/sysctl.conf, rebooted =
-> Problem solved:

	# sysctl net.inet.tcp.tso
	net.inet.tcp.tso: 0
	# scp FILE esxi11.domain.tld:/dev/null
	Password:=20
	FILE                                  100%  347MB  19.3MB/s   =
00:18


Thanks a lot for your help.

Patrick=



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