| Registry Tip #24: W2K registry Tweaks to increase cable modem and dsl speed |
Hits: Failed to execute CGI : Win32 Error Code = 3
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Hive: HKEY_LOCAL_MACHINE
Key: SYSTEM\CurrentControlSet\Services\Tcpip\Parameters
Name: DefaultTTL
Type: REG_DWORD
Value: 128 default=32
default time to live (TTL) for TCP/IP packets
Name: EnablePMTUBHDetect
Type: REG_DWORD
Value: 0 default=0
whether the stack will attempt to detect Maximum Transmission Unit routers that do not send back ICMP fragmentation-needed messages.
Name: EnablePMTUDiscovery
Type: REG_DWORD
Value: 1 default=1
Specifies whether the TCP/IP stack will attempt to perform path MTU discovery as specified in RFC 1191.
Name: SackOpts
Type: REG_DWORD
Value: 1 default=0
Enables support for selective acknowledgements as documented by Request for Comment (RFC) 2018.
Name: Tcp1323Opts
Type: REG_DWORD
Value: 3 default=0
RFC 1323 time stamps and window scaling options. Legal values are: "0" = disable RFC 1323 options, "1" = window scale enabled only, "2" = time stamps enabled only and "3" = both options enabled.
Name: TcpWindowSize
Type: REG_DWORD
Value: 5ae4c default=0
Specifies the receive window size advertised by the TCP/IP stack.
Name: GlobalMaxTcpWindowSize
Type: REG_DWORD
Value: 5ae4c default=0
Specifies the system maximum receive window size advertised by the TCP/IP stack.
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Keywords: Windows NT 2000 Registry Tip, performace boost, registry tweak, cable modem, dsl, ntu