CDA enables the interconnectivity between the local data center and the resources on the cloud.

Application Scenarios

You can connect the local data center to the eSurfing Cloud Virtual Private Cloud (VPC) through CDA, thus achieving the interconnectivity between the local data center and cloud resources. The specific enabling process is shown in the figure below:

Prerequisites

You have made preliminary network planning for the use of CDA according to your business needs, such as how many CDAs are required, the bandwidth rate of CDA, etc. For details about the planning elements, please see FAQ > Management > What factors should I consider in the early stage of CDA access?
You have created a VPC on the cloud.

Procedure

Log in to the Console .
Click in the upper left corner of the Console and select the region.
Click and select Network Console>Cloud Dedicated Access to go to the Quick Start page.

Contact your exclusive account manager or eSurfing Cloud customer service to apply for a dedicated physical line as promoted on the navigation page. If you do not have an exclusive account manager, please call the eSurfing Cloud customer service number for consultation.
Enable the dedicated physical line. Our account manager will collect CDA-enabling information from the customer, including the client-side network segment and cloud-side network segment that need communication, the number of dedicated lines required, the bandwidth rate of the CDA, etc. Our account manager will also help you submit a work order to complete the enabling of the dedicated physical line. After the dedicated physical line is enabled, you can see related enabling information on the Cloud Dedicated Access> Physical Dedicated Line page of the Network Console .

Enable the CDA gateway. After the dedicated physical line is activated, our account manager will help you complete the enabling of the CDA gateway in the background. The CDA gateway is the transmission bridge between the client site and the VPC on the cloud. For details about how to enable the CDA gateway, please see Creating a CDA Gateway. After the CDA gateway is successfully created, you can see related enabling information on the Cloud Dedicated Access> Dedicated Line Gateway page of the Network Console .

Add the client-side route. After the enabling of the CDA gateway is completed, you need to configure the client-side route, that is, the route entry from the CDA gateway to the local data center to realize the interconnectivity between your local data center and the CDA gateway. For details on the adding procedure, see Adding Client-Side Route. Once added, you can view the routing information on the Client Side Routing tab on the Dedicated Line Gateway Details page.

Add a VPC. Considering the two ends connected by the dedicated physical line, in addition to the client-side route, you also need to configure the subnet information of the VPC on the cloud. You need to add VPC configuration to realize the interconnectivity between the CDA gateway and the VPC on the cloud. For details, see Adding a VPC. Once added, you can view the VPC configuration information for the CDA gateway on the VPC tab of the Dedicated Line Gateway Details page.

Conduct the verification test. You can verify the end-to-end connectivity between the data center and the server on the cloud. When conducting a connectivity test, you can open a command line window on a server in the local data center and execute the ping command to test whether the communication among the local data center, CDA gateway, and the VPC on the cloud is normal. If the reply packet can be received, it means that the connection has been successful.

Note: You can also modify the client-side network segment and cloud-side (VPC) network segment information through the eSurfing Cloud Console to realize the change of routing rules. It is recommended that you conduct the network segment planning in the early stage.

Cloud Dedicated Access

Enabling CDA