Siemens SIMATIC NET System Manual

Network structures and network configuration
2.3 Media redundancy
Industrial Ethernet
System Manual, 09/2019, C79000-G8976-C242-10
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Multiple RSTP network areas and MRP ring
Another use case of RSTP+ is the connection of two or more RSTP network areas over one
MRP ring. RSTP+ must be enabled for all devices in the MRP ring that are connected to one
of the RSTP networks. In the example shown here, these are the devices RSW1, RSW2,
RSW3 and RSW4.

Siemens SIMATIC NET Specifications

General

Category	Industrial Communication Software
Manufacturer	Siemens
Operating Systems	Windows, Linux
Protocols Supported	PROFIBUS, PROFINET, OPC UA
Compatibility	Siemens PLCs, Third-party devices with supported protocols