All Products
Search

This Product

    Cloud Enterprise Network:CreateCen

    Document Center

    Cloud Enterprise Network:CreateCen

    Last Updated:Oct 22, 2024

    Cloud Enterprise Network (CEN) instances are basic network resources that are used to manage interconnected networks. You can use a CEN instance to manage a network that covers one or multiple regions. Before you can connect network instances, you must first call the CreateCen operation to create a CEN instance.

    Operation description

    CreateCen is an asynchronous operation. After you a request is sent, the system returns a request ID and runs the task in the background. You can call DescribeCens to query the status of the task.

    • If a CEN instance is in the Creating state, the CEN instance is being created. You can query the CEN instance but cannot perform other operations.
    • If a CEN instance is in the Active state, the CEN instance is created.

    Debugging

    You can run this interface directly in OpenAPI Explorer, saving you the trouble of calculating signatures. After running successfully, OpenAPI Explorer can automatically generate SDK code samples.

    Authorization information

    The following table shows the authorization information corresponding to the API. The authorization information can be used in the Action policy element to grant a RAM user or RAM role the permissions to call this API operation. Description:

    • Operation: the value that you can use in the Action element to specify the operation on a resource.
    • Access level: the access level of each operation. The levels are read, write, and list.
    • Resource type: the type of the resource on which you can authorize the RAM user or the RAM role to perform the operation. Take note of the following items:
      • The required resource types are displayed in bold characters.
      • If the permissions cannot be granted at the resource level, All Resources is used in the Resource type column of the operation.
    • Condition Key: the condition key that is defined by the cloud service.
    • Associated operation: other operations that the RAM user or the RAM role must have permissions to perform to complete the operation. To complete the operation, the RAM user or the RAM role must have the permissions to perform the associated operations.
    OperationAccess levelResource typeCondition keyAssociated operation
    cen:CreateCencreate
    • CenInstance
      acs:cen:*:{#accountId}:ceninstance/*
      none
    		none

    Request parameters

    ParameterTypeRequiredDescriptionExample
    ClientTokenstringNo

    The client token that is used to ensure the idempotence of the request.

    You can use the client to generate the token, but you must make sure that the token is unique among different requests. The client token can contain only ASCII characters.

    Note If you do not specify this parameter, the system automatically uses the request ID as the client token. The request ID may be different for each request.
    		02fb3da4-130e-11e9-8e44-001****
    NamestringNo

    The name of the CEN instance.

    The name can be empty or 1 to 128 characters in length and cannot start with http:// or https://.

    		testname
    DescriptionstringNo

    The description of the CEN instance.

    The description can be empty or 1 to 256 characters in length and cannot start with http:// or https://.

    		testdesc
    ProtectionLevelstringNo

    The level of CIDR block overlapping.

    Set the value to REDUCED (default). This value specifies that CIDR blocks can overlap but cannot be the same.

    		REDUCED
    Tagarray<object>No

    The tags.

    You can specify up to 20 tags in each call.

    objectNo
    KeystringNo

    The tag key.

    The tag key cannot be an empty string. The tag key can be up to 64 characters in length and cannot start with acs: or aliyun. It cannot contain http:// or https://.

    You can specify up to 20 tag keys.

    		tagtest
    ValuestringNo

    The tag value.

    The tag value can be 0 to 128 characters in length, and cannot start with aliyun or acs:. It cannot contain http:// or https://.

    Each tag key must have a unique tag value. You can specify up to 20 tag values in each call.

    		tagtest

    Response parameters

    ParameterTypeDescriptionExample
    object

    The returned results.

    CenIdstring

    The CEN instance ID.

    		cen-dc4vwznpwbobrl****
    RequestIdstring

    The request ID.

    		0C2EE7A8-74D4-4081-8236-CEBDE3BBCF50

    Examples

    Sample success responses

    JSONformat

    {
  "CenId": "cen-dc4vwznpwbobrl****",
  "RequestId": "0C2EE7A8-74D4-4081-8236-CEBDE3BBCF50"
}

    Error codes

    HTTP status codeError codeError messageDescription
    400IllegalParam.ResourceGroupIdResourceGroupId is illegal.The error message returned because the specified resource group is invalid.
    400InvalidParameterInvalid parameter.The error message returned because the parameter is set to an invalid value.
    400UnauthorizedThe AccessKeyId is unauthorized.The error message returned because you do not have the permissions to perform this operation.

    For a list of error codes, visit the Service error codes.

    Change history

    Change timeSummary of changesOperation
    No change history