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To simplify routing and allow SD-Branch deployments to build scalable and secure VPNs on demand, the Aruba SD-Branch solution supports the SD-WAN Software-Defined Wide Area Network. SD-WAN is an application for applying SDN technology to WAN connections that connect enterprise networks across disparate geographical locations. Orchestrator. The SD-WAN orchestrator centralizes orchestration of tunnels and routes. The SD-WAN Wide Area Network. WAN is a telecommunications network or computer network that extends over a large geographical distance. Orchestrator automates the route configuration process. It also distributes routing information learned from each connected branch in a dynamic way as per the routing segmentation requirements.
Branch gateways and VPNCs in an SD-WAN topology use the Overlay Agent Protocol (OAP). OAP is used to automatically build the SD-WAN overlay topology. The OAP allows advertising local routes to the SD-WAN Orchestrator in Aruba Central.
The route orchestration service learns the following attributes in the routes advertised by the peer devices:
- IP address of the device that receives routes.
- IP address of the LAN Local Area Network. A LAN is a network of connected devices within a distinct geographic area such as an office or a commercial establishment and share a common communications line or wireless link to a server. side router that originates routes.
- The WAN service over which the distribution of routes occur.
- The site from where the route originates.
- Number of preferred data centers.
- Source protocol from which the routes originate.
- Metric and cost assigned to the routes.
For more information, see the following sections:
