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Manual Tune-Up (For Advanced Users Only)
What is Manual Tune Up?
Manual Tune-Up allows you to tune-up each individual component of your modem settings manually. This extra fine-tuning for a particular component will increase the modem's performance. The results will vary from Auto Tune-Up. Auto Tune-Up is recommended for first time users, as the optimization process is different.The main components that can be optimized are:
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Maximum Transmission Unit (MTU) | |
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Receive Window (RWIN) | |
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Time-to-live (TTL) | |
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Cache Size |
Do I need to know what settings I have and how do I optimize each?
Even though this is the manual mode, Modem Booster still does the work for you.
There is no need for you to know the values of each, but by activating each individual component tune-up, you can optimize that particular component with Modem Booster.
To activate tune-up, just click on the "Play" button after selecting the component you want to optimize.
To understand what each component means and why each one affect your modem speed, we first need to know what happens when you connect to the Internet.
What happens when I connect to the Internet?
When establishing connection ...
When you connect to the Internet, you need to establish a connection with your Internet Service
Provider (ISP) before you can surf. When connecting, some packets of information are
negotiated with the ISP.
MTU
(Maximum Transmission Unit) will be the amount of data that we would want to receive or send.
Should
MTU be bigger than what the ISP can receive or send, the information package will need
to be put into smaller packets and then reassembled at the destination. Otherwise, if the
MTU is smaller than what the ISP's capacity, then you are not maximizing the data
transmission capacity for data sending and receiving. Either way, data transmission is slowed down,
that is one reason why your connection is slow.
When you're surfing ...
When you surf the Internet, the information that you receive goes through your ISP
before reaching you. When you ask for any information, the
RWIN
(Receive Window) setting states how much information you can receive at a particular moment.
For example,
RWIN is too small, the data needs to be resent again if RWIN has reached its
capacity. If
RWIN is too large, and if the information package is damaged in the process of
transmission, it will take a longer time to re-transmit.
Along the way ...
At the same time, when transmitting data, TTL (Time To Live) is the expiry time value for
the information to reach you from the Internet, before the data timed out and retransmits again.
So if this time-out value is too short, the data will be re-transmitted several times before
you get a chance to download it. If
TTL is too long, in the case when data is lost during transmission, it will take too much
time to time-out and re-transmit it.
Now I have the data ... but ...
For Win 95/98 users, Cache Size determines the amount of recent temporary data from
the Web that can be held at a particular time in your computer, to be made available when you
need it. So if this is too small, the data requested need to be transferred from your ISP again instead of from the PC. If the
Cache Size is too large, then the retrieval of this information will take a long
time, thus slowing down the data transmission rate.
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