Question
In KNXnet/IP Routing, several IP Routers on the same VLAN share traffic via multicast 224.0.23.12, forming an IP backbone with no master-slave hierarchy between the routers.
Answer
True
The architecture is peer-to-peer over multicast: each IP Router transmits and receives independently on 224.0.23.12, with no central coordinator. This delivers robustness (no single point of failure) but requires IGMP Snooping on the switches to avoid flooding the rest of the network with KNX multicast traffic.
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