Industrial Internet Connectivity Framework | Page 119

Connectivity Framework Annex F : Assessment Template : MQTT
F . 6.5 Implementation Viewpoint F . 6.5.7 Network Layer Considerations
Topology ( Section 5.2.1.1 )
Span ( Section 5.2.1.2 )
Segmentation ( Section 5.2.1.3 )
What network topologies are allowed ? Hub and Spoke . The broker ( MQTT-Server ) is the hub . All messages flow via the broker . What is the span of the transport : LAN vs . WAN ?
MQTT can span globally over the WAN , as long as the broker is accessible via TCP / IP .
Can the transport support multiple independent and isolated communication paths between the same network endpoints ?
Segmentation is tied to the MQTT-Servers . Clients connected to different Servers are segmented from each other .
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