Multinational businesses may need to deploy online applications in multiple regions to provide services in the various locations where their customers are based. In a distributed deployment such as this, businesses must ensure internal network communications between the regional sites and set up replication between regional databases. Alibaba Cloud offers services in a number of regions around the world, allowing you to set up a multiregional system and connect your regional networks with Cloud Enterprise Network (CEN). Additionally, you can use Data Transmission Service (DTS) to migrate data and enable real-time replication between regional databases.

This solution enables you to deploy applications in multiple regions; connect regional networks into a central internal network; migrate an Express Connect-based deployment to a CEN-based deployment; and deploy replication between multiple cross-regional ApsaraDB for RDS database systems.