Fiber Monitoring Protocol - Siemens SIMATIC NET SCALANCE SC-600 Configuration Manual

Configuring with Web Based Management
4.5 "Layer 2" menu
4.5.7

Fiber Monitoring Protocol

Requirements
• You can only use Fiber Monitoring with transceivers capable of diagnostics. Note the
documentation of the devices.
• To be able to use the Fiber Monitoring function, enable LLDP. The Fiber Monitoring
information is appended to the LLDP packets.
Monitoring optical links
With Fiber Monitoring, you can monitor the received power and the loss of power on
optical links between two devices.
If you enable Fiber Monitoring on an optical port, the device sends the current transmit
power of the port to its connection partner using LLDP packets. In addition to sending,
the device also checks whether corresponding information is received from the
connection partner.
Regardless of whether the device receives diagnostics information from its connection
partner, it monitors the received power measured at the optical port for the set limit
values.
If Fiber Monitoring is enabled on the connection partner, the connection partner
transfers the current value for the transmit power of the port to the device. The device
compares the value it has received for the transmit power with the actually received
power. The difference between the received power and the transmit power represents
the power loss on the link. The calculated power loss is also monitored for the set limit
values.
If the value of the received power or the power loss falls below or exceeds the set limit
values, an event is triggered. You can set limit values in two stages for messages with
the severity levels "Warning" and "Critical".
In "System > Events > Configuration", you can specify how the device indicates the
event.
Note
If you have enabled Fiber Monitoring and a pluggable transceiver with diagnostics
capability is pulled, Fiber Monitoring is automatically disabled for this port and the set
limit values and a possibly pending error status are deleted.
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SCALANCE SC-600 Web Based Management (WBM)
Configuration Manual, 10/2021, C79000-G8976-C475-03