NetWeaver Gateway is a middleware for request/response
- Communication is request/response, stateless, un-buffered, http-based.
- Gateway exposes OData services for easy consumption.
- Routes requests 1:1 and changes protocol from http to RFC.
- Provides Push/Notification/Subscription capabilities for events and workflow.
SUP 2.1.x is a reverse proxy (not a MW) for online applications
- Connects devices from internet to intranet and routes requests to Gateway.
- Provides User Handling & Security (guards the Gateway).
- Leverages Push/Notification/Subscription (scalability of push for high volumes, planned).
- In contrast to Gateway no content development happens in this layer.
