Cambium Networks cnReach N500, User Manual

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cnReach N500 User Guide
Technical Reference
phn-4673_002v000 (March 2018)
3-25
Networking Features
Routing
SCADA networks built with Ethernet bridges often exist within the same broadcast domain as the
Enterprise network where the SCADA network terminates. With multiple PC’s, printers and other
network appliances from the Enterprise network also existing within the same broadcast domain,
broadcast traffic from these network appliances can also traverse the SCADA system via the RF Links.
This unwanted broadcast traffic eats up RF Bandwidth, reducing the efficiency of the links. One way to
reduce broadcast traffic is to add a router between the SCADA and Enterprise networks so that each
system belongs to it’s own broadcast domain.
This approach reduces the broadcast traffic from the Enterprise network but with the SCADA system
being a flat network inside a single broadcast domain it remains likely that broadcast traffic from all
connected devices could cause concern with a large deployment.
cnReach N500 Multi-Layer radios make it possible to build RF networks with data routed across
multiple subnets, eliminating all unnecessary Ethernet traffic from the RF links.