After a Red Alarm is declared, the device sends a Yellow Signal to the far-end. The far-end, when receives the Yellow Signal, declares a Yellow Alarm. This is a character string specified by the circuit vendor, and is useful when communicating with the vendor during the troubleshooting process. The interface identified by a particular value of this index is the same interface as identified by the same value an ifIndex object instance. The number of seconds that have elapsed since the beginning of the current error-measurement period.
Any fraction is rounded up.
The number of previous intervals for which valid data was collected. The value will be 96 unless the CSU device was brought online within the last 24 hours, in which case the value will be the number of complete 15 minute intervals the CSU has been online. This variable indicates the variety of DS1 Line implementing this circuit. The type of circuit affects the number of bits per second that the circuit can reasonably carry, as well as the interpretation of the usage and error statistics. This variable describes the variety of Zero Code Suppression used on the link, which in turn affects a number of its characteristics.