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When you use ActiveSpeed, you change the way your computer exchanges data over the Internet connection you already have. |
While ActiveSpeed does a lot more, the most basic and most easily understood settings are the MTU, PMTU, RWIN, and TTL settings. These are the four key settings in controlling the way data is delivered to your computer over the Internet.
What
is TTL?When you download a file, it is broken into many packets of data before it is sent to your computer (where it is then reassembled). Not all of these data packets use the same path along the Internet to your computer. Some packets may not arrive in a reasonable length of time and some may even become lost. An arrangement of incorrect routing tables could cause a packet to loop endlessly and congest the network. Not good!
Because of this, packets of data are set with an "expiration date" and will be discarded after a certain number of hops (a hop occurs every time a packet is sent from one computer to the next along a path). TTL stands for Time To Live. After a packet is discarded, your computer will have to request the missing packet(s) again from the originator.
Setting your TTL too low would make it impossible for some packets to reach their destination. Setting it too high would cause the network to become congested. This value is set automatically by all three Optimization Modes, although expert users and network engineers are free to make their own adjustments on the Detailed Optimization tab.
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