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Lets look at our 3-layer architecture in more detail, as shown in Figure 2. The Application Layer includes the Topology Monitor which monitors network topology state, the Fault Detector which identifies fault nodes, Path Configuration which manages path reconfiguration scenarios, and the Flow Controller which interfaces with the SDN controller via RESTCONF API. The Control Layer consists of RESTCONF Northbound for interfacing with the upper layer, Topology Manager for managing topology information, OpenFlow Plugin for handling the OpenFlow protocol, and Flow Service for managing flow rules. Finally, the Data Layer handles Packet Forwarding through OpenFlow switches, VLAN Processing for tagging and processing, and Multi-Path support for multi-path routing. |
IEEE/ICACT20260257 Slide.08
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