298 Rockwell Automation Publication 1783-UM007G-EN-P - February 2017
Chapter 7 Configure Switch Features
Traffic egressing the RedBox PRP channel group can be mixed, that is, destined
to either SANs (connected only on either LAN-A or LAN-B) or DANs. To
avoid duplication of packets for SANs, the switch learns source MAC addresses
from received supervision frames for DAN entries and source MAC addresses
from non-PRP (regular traffic) frames for SAN entries. The switch maintains
these addresses in the Node table. When forwarding packets out of the PRP
channel to SAN MAC addresses, the switch looks up the entry and determines
which LAN to send to rather than duplicating the packet.
A RedBox with VDANs needs to send supervisory frames on behalf of those
VDANs. For traffic coming in on all other ports and going out PRP channel
ports, the switch learns source MAC addresses, adds them to the VDAN table,
and starts sending Supervisory frames for these addresses.
You can add static entries to the VDAN and Node tables.
Configure PRP via Device Manager
From the Configure menu, choose PRP.
PRP Channel Table
To add a PRP channel, follow these steps.
1. From the PRP window, click the Channel Table tab.
2. Click Add, and then complete the fields, and then click OK.
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