Connectivity Framework Annex E : Assessment Template : CoAP
E . 6.5 Implementation Viewpoint E . 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 ? CoAP is agnostic to network topologies .
CoAP has been used on low power networks that have a central point of connectivity to the outside ( sink ). What is the span of the transport : LAN vs . WAN ?
CoAP can be used within the LAN or across the WAN . CoAP clients and servers can be located in either the LAN or WAN .
CoAP implementations provide proxy mechanisms to deal with firewalls and other restrictions encountered when going across the WAN .
Can the transport support multiple independent and isolated communication paths between the same network endpoints ?
Yes , CoAP is an IP based communication protocol . As such it can support multiple independent and isolated communication paths between the same network endpoints using the underlying IP network ' s mechanisms for path redundancy and isolation .
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