This router can work well through many-many years, as it contains no spinning parts, except for the coolers in the power supply and CPU. Version 1.0_pre01 (PHDS) was released January 4, 2003.
ARSIG Linux (Arl) is optimized for use on LAN routers. The primary goal of this distribution is that it is adapted to work on a read-only filesystem. Arl is booting up from a flash card (256Mb) and all components of filesystem, that needs write access is mounted in RAM.
In result, we have a router, that can work well many-many years, as it contains no spining parts, except for cooler in power source and cooler on CPU.