cFosSpeed
| Developer(s) | cFos Software GmbH |
|---|---|
| Initial release | 7 July 2004 |
| Stable release | 13.00 Build 3000
/ 27 February 2024 |
| Operating system | Windows 11 and Windows 10 |
| Platform | IA-32 and x86-64 |
| Type | Traffic shaping |
| License | Shareware |
| Website | www |
cFosSpeed is a traffic shaping software often bundled with MSI motherboards for the Windows operating system. The program attaches itself as a device driver to the Windows network stack where it performs packet inspection and layer-7 protocol analysis. It has been noted as causing some issues with network connections, and can be difficult to uninstall when bundled.[1]
A version of the software is bundled with some Gigabyte_Technology motherboards under the name "Gigabyte Speed"[2] and some ASRock motherboards as "XFast LAN".[3]
Operational summary
The software divides data packets into different traffic classes through filtering rules. It has been noted to cause problems with some users' internet connections.[4] Data traffic can 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 queued and sent out in order of priority.[5] The program uses TCP flow control to send new data only after older data has been received. Data may also be throttled by lowering the TCP window size. The software contains a packet filter firewall.[6] Users are also able to write their own traffic classifications.[7]
In recent years some driver issues have been found with cFosSpeed but they are easily fixable.[8]
Similar Products
References
- ^ Loynds, Joel (5 October 2021). "cFosSpeed: How to Uninstall on Windows 11 and 10". PC Guide. Retrieved 16 January 2022.
- ^ "GIGABYTE - Motherboard - Socket 1150 - GA-Z87X-D3H (rev. 1.x)". Gigabyte website. Gigabyte Technology. Retrieved 2015-10-03.
- ^ "ASRock XFast LAN - cFos Software". cFos website. cFos Software GmbH. Retrieved 2014-01-14.
- ^ Loynds, Joel (5 October 2021). "cFosSpeed: How to Uninstall on Windows 11 and 10". PC Guide. Retrieved 16 January 2022.
- ^ Lüders, Christoph; Winkler, Martin (20 February 2008). "Tweaking TCP/IP". The H Online. Heise Media UK Ltd.
- ^ "List of cFosSpeed's features". cFos website. cFos Software GmbH. Retrieved 18 January 2011.
- ^ "Filter language used to classify packets". cFos website. cFos Software GmbH. Retrieved 18 January 2011.
- ^ Gautam, Abhay (2022-08-29). "cFosSpeed Driver Windows 11: How to Fix Installation Error". Retrieved 2023-02-06.