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    Windows network "tweaks", are they real?

    Discussion in 'Networking and Wireless' started by baii, Oct 19, 2013.

  1. baii

    baii Sone

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    Some "tweak" software says enable the following have positive effect on networking

    1. path MTU disocvery
    2.large TCP windows support
    3.sackopts

    Is it true, or mostly placebo or outdated features?
     
    baii, Oct 19, 2013
    #1
  2. oled

    oled Notebook Evangelist

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    I can't comment on newer versions but for XP they are very real. Before tweaking speeds were limited to about 400kb/s.

    Here I found some old config that I had applied, which made speeds upto 3.5mb/s possible that my ISP provided:
    Code: 
    Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]
"GlobalMaxTcpWindowSize"=dword:000faf00
"TcpWindowSize"=dword:000faf00
"Tcp1323Opts"=dword:00000001
"DefaultTTL"=dword:00000040
"EnablePMTUDiscovery"=dword:00000001
"SackOpts"=dword:00000001
"TcpMaxDupAcks"=dword:00000002
    Notes about TcpWindowSize (don't take them for granted):
    146000 (default)
    256960 (>3.5Mbps)
    513920 (>11Mbps)
    1027840 (>21Mbps) hex: 000faf00
    2055680 (>42Mbps)
    4111360 (>85Mbps)
     
    oled, Oct 30, 2013
    #2