7SR21 & 7SR22 - Installation Guide
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6.7.1 RSTP – Rapid Spanning Tree Protocol
RSTP is a redundancy protocol with a minimal response time that has been standardized in IEEE-802.1D (2004).
The reconfiguration time depend on the topology and start at 50 ms.
RSTP need to be enabled on the device within Reydisp Manager (See Reydisp Manager user guide). Network
rings with up to 30 devices is possible.
Figure: 6.7.1-1 RSTP Ethernet Network Ring Configuration
6.7.2 PRP – Parallel Redundancy Protocol
The HSR redundancy protocol according to the IEC 62439-3 standard is based on double transmission of
message frames over ring-topology networks in both directions. In the case of an error, the message frame will be
transmitted without any delay. No reconfiguration time is necessary for the network, as is the case for RSTP.
PRP need to be enabled on the device within Reydisp Manager (See Reydisp Manager user guide).
Summary of Contents for Argus 7SR21
Page 1: ...Energy Management 7SR21 7SR22 Argus Overcurrent Relay Reyrolle Protection Devices ...
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Page 4: ...Contents 7SR11 and 7SR12 Page 2 of 2 2018 Siemens Protection Devices Limited ...
Page 185: ...7SR210 Settings Guide Unrestricted 2018 Siemens Protection Devices Limited Page 61 of 61 ...
Page 277: ...7SR220 Settings Guide Unrestricted Page 72 of 107 2013 Siemens Protection Devices Limited ...
Page 382: ...7SR220 Technical Manual Chapter 4 Page 2 of 96 2017 Siemens Protection Devices Limited ...
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