Oam Statistics - ZyXEL Communications MSC1000G User Manual

Chapter 12 Statistics Screens
Table 246 SFP Statistics (continued)
LABEL
DDMI Info
Temperature
Supply Voltage
Tx Bias Current
Tx Power (uW)
Rx Power (uW)
Tx Power (dBm)
Rx Power (dBm)

12.23 OAM Statistics

To view Ethernet OAM (Operational, Administration and Maintenance) details about an Ethernet line
card port, click Statistics > OAM.
488
DESCRIPTION
If the SFP module provides a Digital Diagnostics Monitoring Interface (DDMI), this section
displays current status details you can use for troubleshooting.
This field displays the current temperature inside the SFP module.
This field displays the level of voltage currently being supplied to the SFP module.
This field displays the current in milliamps (mA) being supplied to the SFP module's Laser
Diode Transmitter. Track the Tx bias to know how the laser component is aging relative to
your network's other SFP modules. This helps you know when to do preventative
maintenance instead of having to deal with an unexpected SFP module failure.
This field displays the number of micro Watts (uW) of light the SFP module is currently
transmitting. This value does not reflect the condition of the cable. Refer to this number
to monitor the laser's health.
Compare the Tx power at one end of a fiber cable with the Rx power at the other end to
measure the attenuation. This lets you check if the cable path's performance is as
expected or if there may be some interference. Tracking the attenuation over time also
helps you see if the cable is deteriorating.
This field displays the number of micro Watts (uW) of light currently being received from
the fiber optic cable.
This field displays the amount of light (in dBm) the SFP module is currently transmitting.
This value does not reflect the condition of the cable. Refer to this number to monitor the
laser's health.
This field displays the amount of light (in dBm) currently being received from the fiber
optic cable.
Management Switch Card User's Guide