| Developer | Extreme Networks |
|---|---|
| OS family | Unix-like |
| Working state | Current |
| Source model | Closed source and partly Open source |
| Initial release | version 10.1: February, 2004 |
| Latest release | 16.1.3.6 Patch4 (21.1.1 Patch2 for Gen2 Devices) / 05.05.2016 (02.05.2016) |
| Available in | English |
| Platforms | Extreme Networks Network switches |
| Kernel type | Monolithic (Linux) |
| Default user interface | Command-line interface |
| Official website | www |
ExtremeXOS is the software or the network operating system used in newer Extreme Networks network switches.[1] It is Extreme Networks second generation operating system after the VxWorks based ExtremeWare operating system.
ExtremeXOS is based on the Linux kernel and BusyBox.[2] In July 2008 legal action was taken against Extreme Networks due to alleged violation of the GNU General Public License.[3] Three months later the lawsuit was settled out of court.[4]