toggle several media options (sonet/sdh, for example) with ifconfig and to see the carrier state in ifconfig's output. It gives also read/write access (given the right privilegs) to the S/Uni registers to user space programs.
toggle several media options (sonet/sdh, for example) with ifconfig and to see the carrier state in ifconfig's output. It gives also read/write access (given the right privilegs) to the S/Uni registers to user space programs.