You can view the optical monitoring default values by entering show defaults threshold followed by the SFP type.
The following example command will display the defaults for type 1GLR SFPs:
device# show defaults threshold sfp type 1GLR Type: 1GLR +------------+-------------------------+-------------------------+--------+ | | High Threshold | Low Threshold | Buffer | | Area | Value | Above | Below | Value | Below | Value | | | | Action | Action | | Action | | +------------+-------+--------+--------+-----------+-------------+--------+ | Temp C | 90 | raslog | none | -45| raslog | 0| +------------+-------+--------+--------+-----------+-------------+--------+ | RXP uWatts | 501 | raslog | none | 6| raslog | 0| +------------+-------+--------+--------+-----------+-------------+--------+ | TXP uWatts | 794 | raslog | none | 71| raslog | 0| +------------+-------+--------+--------+-----------+-------------+--------+ | Current mA | 45 | raslog | none | 1| raslog | 0| +------------+-------+--------+--------+-----------+-------------+--------+ | Voltage mV | 3700 | raslog | none | 2900| raslog | 0| +------------+-------+--------+--------+-----------+-------------+--------+ device#