Cloud Enterprise Network (CEN) is a service that allows you to create a global network for rapidly building a distributed business system with a hybrid cloud computing solution. CEN enables you to build a secure, private, and enterprise-class interconnected network between VPCs in different regions and your local data centers. CEN provides enterprise-class scalability that automatically responds to your dynamic computing requirements.



Components

CEN consists of the following components:

  • CEN instances

    A CEN instance is basic resource of creating and managing your network.

    To connect your network worldwide, you must first create a CEN instance, you can attach networks to it, and then purchase a bandwidth package and configure a bandwidth for cross-region communication.

  • Networks

    Networks are the network resources that you want to connect using CEN. The networks attached to a CEN instance can communicate with one another across the regions you have selected. The supported networks include both VPC and VBR. For more information, see What is VPC and Virtual border router.

  • Bandwidth package

    A bandwidth package is required only for cross-region communications. When purchasing a bandwidth package, you must specify the interconnection areas for the network resources to communicate. An area is a collection of Alibaba Cloud regions. Areas of communication include Mainland China, Asia Pacific, United States of America, and Europe.

    Note
    No bandwidth package is required for interconnection in the same region. No need to purchase bandwidth packages if you want to connect networks in the same region; However, a bandwidth package is required if you want to connect networks in different regions. (By default, 1 Kbps bandwidth is provided for connectivity test. To run normal business, you must buy a bandwidth package and set a proper interconnection bandwidth).
    The relationship between areas and regions are shown in the following table:
    Area Included regions
    Mainland China China (Qingdao), China (Beijing), China (Zhangjiakou), China (Shenzhen), China (Hangzhou), China (Shanghai), China (Hohhot)
    North America US (Silicon Valley), US (Virginia)
    Asia Pacific Hong Kong, Singapore, Malaysia (Kuala Lumpur), Japan (Tokyo), India (Mumbai), Indonesia (Jakarta)
    Europe Germany (Frankfurt)
    Australia Australia (Sydney)

    For example, if you want to connect a network in China (Beijing) with a network in US (Silicon Valley), the interconnection areas are China Mainland and North America. For more information, see Scenarios.