Once an optic is detected by the software, it reads the erasable programmable read only memory (EPROM) to determine if it is Extreme certified. The data is read periodically to monitor the health. If it is not able to access the EPROM of any optic, that particular optic is put into failed state and the port link will not come up. Optics which are not certified by Extreme are not monitored. However these port links are not prevented form coming up.
The optic parameters that can be monitored are listed and described below.
|
SFP parameter |
Description |
Suggested SFP impact |
|---|---|---|
|
Temperature |
Measures the temperature of the optic, in degrees Celsius. |
High temperature suggests that the optic might be damaged. |
|
Receive power (RXP) |
Measures the amount of incoming laser, in µWatts. |
Describes the condition of the optic. If this parameter exceeds the threshold, the optic is deteriorating. |
|
Transmit power (TXP) |
Measures the amount of outgoing laser power, in µWatts. |
Describes the condition of the optic. If this parameter exceeds the threshold, the optic is deteriorating. |
|
Current |
Measures the amount of current supplied to the optic transceiver. |
Indicates hardware failures. |
|
Voltage |
Measures the amount of voltage supplied to the optic. |
A value higher than the threshold indicates the optic is deteriorating. |
For all Extreme certified optics, optical monitoring is performed using Fabric Watch (FW).