Cloud Connect Network (CCN) is a matrix consisting of Alibaba Cloud distributed access gateways. It is an important component of Smart Access Gateway (SAG). After you associate an SAG instance with a CCN instance, the SAG instance connects associated private 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.

Note An SAG instance can be associated with a CCN instance that belongs to the same area as that of the SAG instance. You cannot associate an SAG instance with a CCN instance that belongs to a different area.

You can attach a CCN instance to a Cloud Enterprise Network (CEN) instance to connect on-premises workloads to Alibaba Cloud. For more information, see What is CEN?.

After you attach a CCN instance to a CEN instance, private networks associated with the CCN instance can communicate with cloud resources attached to the CEN instance.

  • Private networks associated with the CCN instance can directly communicate with cloud resources attached to the CEN instance in the same area. No cross-area bandwidth is required.

    For example, if you want to use SAG to connect the network of an office branch in Hangzhou to a virtual private cloud (VPC) in the China (Shanghai) region, attach the CCN instance associated with the SAG instance to the CEN instance to which the VPC is attached.

  • To enable communication across areas, you must purchase a CEN bandwidth plan and set cross-region bandwidth after you attach the CCN instance to the CEN instance.

    For more information, see CEN tutorial.

Areas of CCN and areas of CEN are defined in different ways. A CEN area is a collection of Alibaba Cloud regions. Each area of CEN may contain one or more Alibaba Cloud regions. The following table lists the areas of CCN and CEN.

CCN area CEN area Region in the CCN area
Mainland China Mainland China

China (Qingdao)

China (Beijing)

China (Zhangjiakou)

China (Hohhot)

China (Ulanqab)

China (Shenzhen)

China (Heyuan)

China (Hangzhou)

China (Shanghai)

China (Chengdu)

China (Hong Kong) Asia Pacific China (Hong Kong)
Singapore (Singapore) Singapore (Singapore)
Malaysia (Kuala Lumpur) Malaysia (Kuala Lumpur)
Indonesia (Jakarta) Indonesia (Jakarta)
Japan (Tokyo) Japan (Tokyo)
Germany (Frankfurt) Europe Germany (Frankfurt)
Australia (Sydney) Australia Australia (Sydney)