Ativa Pro comes complete with
everything you need to optimize and enhance your internet connection
speed and improve PC to ISP reliability. What makes Ativa Pro
extraordinary is its built in DUN Tweaker which provides the ultimate in
Dial Up Networking configurability.
Optimizing Dial-Up Modem Connection Speed
By optimizing the MaxMTU & MaxMSS
settings, together with the RWIN and TTL settings you can increase
dialup modem connection reliability and performance by as much as 200%.
What is the MTU and MSS?
MTU stands for Maximum Transmission
Unit and it defines the maximum size of a packet that can be
transferred in one frame over a network.
MSS or Maximum Segment
Size defines how much actual data can put in that packet, and it
should be a slightly smaller value than MTU to allow for packet
addressing and other information.
Why do the default values need to
be changed?
By default Windows hardcodes the value of
MTU to equal 1500 bytes. This value is adequate for normal LAN
networking, but when you're connecting to the Internet with a modem this
value is too high. This can show itself in different ways, the most
noticeable affect is less than peak performance.
By adjusting this value to more closely
match the requirements of a modem Internet connection, major performance
gains can be achieved.
Optimizing the
DefaultRcvWindow & DefaultTTL Settings
The optimization of RcvWindow and DefaultTTL, together with the other
registry settings - MaxMTU and MaxMSS can speed up TCP/IP modem
networking connections (eg. Internet connections).
RWIN (Receive WINdow)
is the buffer your machine waits to fill with data before attending to
whatever other TCP transactions are occurring on the other threads and
sockets WinSock has open while a connection is in progress.
TTL (Time To
Live) defines how long a packet can stay active before being
discarded. The default value is '32'
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