Product Overview

Application scenarios

Interconnectivity and isolation between multiple VPCs

By attaching multiple Virtual Private Clouds (VPCs) to a Transit Router (TR) and configuring flexible policies as needed, the TR service helps you achieve flexible private interconnectivity and isolation between VPCs. Learn more

Interconnectivity and isolation between multiple VPCs and an on-premises data center

By attaching VPCs and a Virtual Private Network (VPN) or Direct Connect (DC) Gateway to a TR and flexibly selecting route configuration as needed, the TR service helps you achieve interconnectivity between each VPC and the on-premises data center, while maintaining isolation between VPCs. Learn more

Unify Internet egress for multiple VPCs

By allowing multiple VPCs to share an Internet NAT gateway via the TR and use a unified Elastic IP Address (EIP) to access the Internet, the TR service facilitates centralized management of Internet egress and enhances business security. Learn more

Dynamic routing and failover

By flexibly configuring routes on the TR, the TR service helps you achieve dynamic multi-path selection and automatic link failover in the event of an outage:

Enabling load balancing between two dedicated DC links, providing high reliability for services.

Enabling active-standby redundancy between two dedicated DC links or between a DC link and a VPN link. This enables automatic failover when one link fails and avoids service disruption.

Secure communication between VPCs

By forwarding bidirectional traffic between VPCs to security devices via the TR, the TR service helps you achieve secure communication between VPCs. Learn more

Hybrid cloud scenarios

By associating VPCs, VPNs, and DC Gateways with respective TRs and configuring routes for intercommunication, the TR service helps you implement cross-region hybrid networking scenarios, achieving interconnectivity between VPCs, between VPC and data center, and between data centers.

Last updated: 2026.09.01 11:37:09