Smart Access Gateway (SAG) provides different scenarios with solutions to migrate workloads to the cloud. You can choose a suitable network topology based on your actual requirements.
Connect mobile devices to Alibaba Cloud
To connect mobile devices or remote devices to Alibaba Cloud, you can use the SAG app. The SAG app supports dial-up access from client devices such as personal computers (PCs) and mobile phones to Alibaba Cloud. Network connections between private networks and Alibaba Cloud are encrypted. The SAG app is suitable for office automation and remote O&M.
Connect small-scale networks to Alibaba Cloud
To connect small office branches or stores to Alibaba Cloud, you can deploy SAG devices in inline mode.
Before you connect a small-scale network to Alibaba Cloud, we recommend that you purchase a 4G card which supports data transmission and insert the 4G card into the SAG device. The 4G card supports standby connections to Alibaba Cloud. If the active connection fails, the 4G card takes over data transmissions. This solution ensures network reliability.
Connect large-scale networks to Alibaba Cloud
To connect large-scale networks to Alibaba Cloud, you can deploy SAG devices in one-arm mode.
Before you connect a large-scale network to Alibaba Cloud, we recommend that you purchase a SIM card and activate Express Connect. In this way, the broadband network, 4G network, and Express Connect are deployed in active-standby mode. This improves network reliability.
Deploy an Express Connect circuit (connected to an SAG device) to set up standby network connections
If you connect an Express Connect circuit to an SAG device, network traffic from the on-premises network is preferentially transmitted over the Express Connect circuit.
Deploy an Express Connect circuit (connected to a local Internet-facing device) to set up standby network connections
If you connect an Express Connect circuit to a self-managed device, you can configure priorities on the self-managed device for the SAG device and Express Connect circuit based on business requirements.