Cloud Connect Network (CCN) is a matrix that consists of distributed access gateways of Alibaba Cloud. CCN is an important component of Smart Access Gateway (SAG). After you associate an SAG instance with a CCN instance, the SAG instance connects associated on-premises networks to Alibaba Cloud through the CCN instance.
You must select an area when you create a CCN instance. For more information about areas that support CCN, see Supported areas.
- If the CCN instance and the virtual private cloud (VPC) that you want to connect belong
to the same area, the on-premises networks associated with the CCN instance can directly
communicate with cloud resources in the VPC.
For example, if you want to connect the network of a branch in Hangzhou to a VPC in the China (Shanghai) region by using SAG, you need to only associate the network of the branch with a CCN instance in the Chinese mainland, and then connect the CCN instance to the CEN instance to which the VPC is attached.
- If the CCN instance and the VPC that you want to connect belong to different areas, you must perform the following operations after you use CEN to connect the CCN instance to the VPC: Purchase a bandwidth plan for the CEN instance, and then configure bandwidth for inter-region connections. This way, the on-premises networks associated with the CCN instance can communicate with the resources in the VPC.
For more information, see What is CEN?.
CCN areas and CEN regions
A CCN instance is created in an area rather than a region. An area of CCN consists of one or more regions of CEN. A CCN instance can connect networks in different regions in the same area.
- The on-premises networks associated with the CCN instance can directly communicate with VPC1 and VPC2. You do not need to configure bandwidth for inter-region connections.
- To enable communication between the on-premises networks associated with the CCN instance and VPC3, or the communication between VPC1 and VPC2, you must configure bandwidth for inter-region connections.
|CCN area||CEN region|
|Chinese mainland||China (Qingdao), China (Beijing), China (Zhangjiakou), China (Hohhot), China (Ulanqab), China (Shenzhen), China (Heyuan), China (Guangzhou), China (Hangzhou), China (Shanghai), China (Nanjing - Local Region), and China (Chengdu)|
|China (Hong Kong)||China (Hong Kong)|
|Singapore (Singapore)||Singapore (Singapore)|
|Malaysia (Kuala Lumpur)||Malaysia (Kuala Lumpur)|
|Indonesia (Jakarta)||Indonesia (Jakarta)|
|Japan (Tokyo)||Japan (Tokyo)|
|Germany (Frankfurt)||Germany (Frankfurt)|
|Australia (Sydney)||Australia (Sydney)|