API Guide

Digital optical monitoring
The digital optical monitoring (DOM) feature monitors the digital optical media for temperature, voltage, bias, transmission
power (Tx), and reception power (Rx). This feature also generates event logs, alarms, and traps for any fluctuations, when
configured thresholds are reached.
There are four threshold levels for each of the DOM categories—temperature, voltage, bias, transmission power, and reception
power as summarized in the following table:
● High
● High warning
● Low
● Low warning
The OS10 DOM subsystem periodically monitors the optical transceivers for temperature, voltage, bias, transmission power and
reception power changes and generate event logs, alarms, and traps when their respective values cross the predefined
thresholds.
Table 49. DOM Alarms
Alarm Category Alarm Name Traps Generated? Severity Level
Temperature Temperature high Y Major
Temperature high
warning
N Minor
Temperature low Y Major
Temperature low
warning
N Minor
Voltage Voltage high Y Major
Voltage high
warning
N Minor
Voltage low Y Major
Voltage low warning N Minor
Bias Bias high Y Major
Bias high warning N Minor
Bias low Y Major
Bias low warning N Minor
Power transmission
(Tx)
Tx high Y Major
Tx high warning N Minor
Tx low Y Major
Tx low warning N Minor
Power reception
(Rx)
Rx high Y Major
Rx high warning N Minor
Rx low Y Major
Rx low warning N Minor
You can enable or disable the DOM feature, configure traps, and view the DOM status.
Enable DOM and DOM traps
To generate DOM alarms, do the following.
Interfaces
279