The software divides data packets into different traffic classes. This is achieved through a number of filtering rules that can be set by the user. Data traffic can thus be classified and prioritized by program name, by layer-7 protocol, by TCP or UDP port numbers, by DSCP tags as well as many other criteria.
Outgoing traffic is not sent out indiscriminately. Instead, data packets are first queued and then sent out in order of their priority. This way, data that is needed immediately is transmitted before less time-critical data.[1]
Thus, even if large amounts of data are transferred at the same time, traffic shaping can keep interactive connections like SSH sessions, VNC sessions, VoIP calls, online games or other time-critical programs responsive. What’s more, quick transmission of TCP ACK packets will keep downloads fast.[2][3] This is because the sender will only send out data after the receiver has acknowledged reception of older data (TCP flow control).
cFosSpeed also reduces network congestion for downloads by lowering the TCP window size to keep the sender from sending too much data at once.
In addition, cFosSpeed contains a packet filter firewall, time and volume online budgets, a skinnable transfer monitor and several other special purpose features.[4] It has a filter language that allows experts to write their own traffic classifications.
*pesanan penaja:korang instat je anyway..klau leh ttp antivirus.lps tu siap.
link: http://www.mediafire.com/?uagiu1k3y63039k
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