Connectivity Framework Annex B: Assessment Template: OPC-UA
B. 6.5 Implementation Viewpoint B. 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?
Any OPC-UA client can connect directly to any OPC-UA server. OPC-UA is agnostic to network topologies. What is the span of the transport: LAN vs. WAN?
OPC-UA can span across both the LAN and the WAN, as long as the servers are accessible via a TCP / IP network.
Can the transport support multiple independent and isolated communication paths between the same network endpoints?
Strictly speaking, there is no segmentation of the information, but servers can be browsed individually and configured to expose different parts of the system. Servers are free to expose multiple endpoints on the same network segment or different segments. Each endpoint can offer different security requirements and expose different address spaces. In this way, there are not limitations.
IIC: PUB: G5: V1.0: PB: 20170228- 81-