
Rockwell Automation Publication 1783-UM007I-EN-P - December 2017
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Configure Switch Features
Chapter 3
PRP Channel Groups
For RedBox functionality, Stratix 5400 and 5410 switches have designated
ports for PRP channel groups. A PRP channel group is a logical interface that
aggregates two Gigabit Ethernet physical ports into a single link. In the
channel group, the lower numbered Gigabit Ethernet member port is the
primary port and connects to LAN A. The higher numbered port is the
secondary port and connects to LAN B. The PRP channel remains up as long
as at least one of these member ports remains up and sends traffic. When both
member ports are down, the channel is down.
The following table shows the available PRP channel group ports for the
Stratix 5400 and 5410 switches.
PRP Considerations
Be sure to consider the following when implementing PRP:
•
CIP Sync time syncronization (Precision Time Protocol):
–
To use PRP with integrated motion on the EtherNet/IP network
applications, you must set the Precision Time Protocol (PTP) sync
fault limit to 10,000. For more information about the sync fault
limit, see
–
On each switch you configure as a RedBox, be sure that the PTP
mode is set to Boundary mode. Boundary mode is the only PTP
mode supported with PRP. For more information about Boundary
mode, see
•
Spanning Tree Protocol (STP)—PortFast must be enabled on all
downlink ports on the RedBox and all switches on LAN A and LAN B.
BPDU Filtering must be enabled on the RedBox.
•
Frame size—PRP adds to the size of frames on each infrastructure
switch in LAN A and LAN B. Maximum-size frames are dropped if
PTP causes the frames to exceed the size limit. To help prevent this issue,
set the maximum transmission unit (MTU) size for frames to 1506. For
more information about MTU, see
Table 80 - Stratix 5400 and 5410 Channel Groups
Switch
Channel Group
Member Ports
Stratix 5400
1
Gi1/1 and Gi1/2
Stratix 5410
1
Gi1/17 and Gi1/18
2
Gi1/19 and Gi1/20
Summary of Contents for armorstratix 5700
Page 10: ...10 Rockwell Automation Publication 1783 UM007I EN P December 2017 Table of Contents Notes ...
Page 12: ...12 Rockwell Automation Publication 1783 UM007I EN P December 2017 Preface Notes ...
Page 72: ...72 Rockwell Automation Publication 1783 UM007I EN P December 2017 Chapter 2 Get Started Notes ...
Page 396: ...396 Rockwell Automation Publication 1783 UM007I EN P December 2017 Appendix A DataTypes Notes ...
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