Transmit All Ones / Alarm Indication Signal
The Transmit All Ones or TAOS feature causes an interface to transmit an error signal when the opposite interface is down. The TAOS MIB Variable allows generation of the alarm signal to be enabled or disabled. So for example, when
csdtf100TAOSFiber is set to
enabled(1), the Fiber interface transmits an error signal when the Copper interface loses link.
The Alarm Indication Signal is a status indicator that this alarm signal is currently being received from a remote device.