Cloud Enterprise Network:CEN instances

Create a CEN instance

Prerequisites

Before you begin, make sure that you have:

• An Alibaba Cloud account with permissions to create CEN resources

• (Optional) A resource group to organize the CEN instance. If not specified, the instance is added to the default resource group. For more information, see What is Resource Management?

1. Log on to the CEN console.

2. On the Instances page, click Create CEN Instance.

3. In the Create CEN Instance dialog box, configure the following parameters, and then click OK.

   Parameter	Description
   Name	Enter a name for the CEN instance.
   Description	Enter a description for the CEN instance.
   Resource Group	Select a resource group. If no resource group is selected, the instance is added to the default resource group. Manage resource groups in the Resource Management console.
   Tag	Add tags to the CEN instance. You can add multiple tags. Tag key constraints: maximum 64 characters, cannot be an empty string, cannot start with acs: or aliyun, and cannot contain http:// or https://. Tag value constraints: maximum 128 characters, can be an empty string, cannot start with acs: or aliyun, and cannot contain http:// or https://. For more information, see Manage tags.

   The CEN instance appears on the Instances page after creation.

To create a CEN instance by calling an API operation, see CreateCen.

Next steps

After creating a CEN instance, create a transit router in the target region and attach network instances such as VPCs and VBRs. For more information, see the following topics:

• Create a transit router

• Create a VPC connection

• Create a VBR connection

Delete a CEN instance

Deleting a CEN instance permanently removes it and all associated configurations. Before deleting, remove all dependent resources from every transit router in the instance.

Prerequisites

Before you delete a CEN instance, make sure that the following conditions are met.

Network connections

• All network instance connections are deleted. For more information, see Delete a network instance connection.

• All inter-region connections are deleted. For more information, see Delete an inter-region connection.

• No bandwidth plans are associated with the CEN instance. For more information, see Disassociate a bandwidth plan from a CEN instance.

Routing configuration

• All custom route tables on the transit router are deleted. For more information, see Delete a custom route table.

• The default route table contains no custom route entries. For more information, see Delete a custom route from an Enterprise Edition transit router.

• No prefix lists are associated with transit router route tables. For more information, see Disassociate a prefix list from a transit router route table.

• All aggregate routes are deleted. For more information, see Delete an aggregate route.

Advanced features

• The transit router is not associated with any multicast domain. For more information, see Delete a multicast domain.

• No traffic marking policies are associated with the transit router. For more information, see Delete a traffic marking policy.

1. Log on to the CEN console.

2. On the Instances page, find the CEN instance to delete and click Delete in the Actions column.

3. In the Delete CEN Instance message, verify the instance ID and click OK.

   The CEN instance is removed from the Instances page.

To delete a CEN instance by calling an API operation, see DeleteCen.

References

• CreateCen - Create a CEN instance by calling an API operation.

• DeleteCen - Delete a CEN instance by calling an API operation.