Official guide for Alibaba Cloud Virtual Private Cloud (VPC) covering concepts, setup, routing, and usage scenarios.
About this manual
The Alibaba Cloud VPC User Guide explains how to create and manage a Virtual Private Cloud, including defining CIDR blocks, creating VSwitches, and configuring routers and route tables. It details the differences between classic and dedicated networks, the isolation mechanisms, and the constraints for each component.
The guide also describes advanced features such as NAT gateways, Elastic IPs, and software‑defined networking, and provides usage scenarios like cross‑zone deployment, VPN and dedicated line connections, and high‑availability configurations. Service terms and troubleshooting tips are included at the end of the document. This manual is written in Chinese.
What's inside
- Product Overview
- Terminology
- VPC CIDR Block
- Router and Route Table
- VSwitch Management
- Network Isolation Features
- Software Defined Network
- Usage Scenarios
- Key Features (NAT, EIP)
- Service Terms & Troubleshooting
Specifications
| Maximum routers per VPC | 1 |
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| Router supports static routes only | No BGP/OSPF |
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| VSwitch type | Layer‑3 switch, no layer‑2 broadcast/multicast |
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| CIDR block modification | Not allowed after VPC creation |
Frequently asked questions
Can the CIDR block of a VPC be changed after it is created?
No, the CIDR block cannot be modified once the VPC is created.
How many routers does a VPC contain?
Each VPC has exactly one router.
What types of routing protocols does the VPC router support?
The router only supports static routes; dynamic protocols like BGP and OSPF are not supported.
What is required before deleting a VPC?
All resources inside the VPC, such as security groups, VSwitches, cloud instances, and route entries, must be deleted first.