SAG-1000 can provide standby connections between private networks and Alibaba Cloud. When an error occurs in the leased line, the system automatically switches to the standby connections. You can check the high availability (HA) status of leased lines and SAG devices in the Smart Access Gateway (SAG) console.
Prerequisites
- A leased line and virtual border router (VBR) are deployed. For more information, see What is Express Connect?.
- The VBR is associated with the SAG instance. For more information, see Attach a network.