Creates a virtual private cloud (VPC).
Usage notes
When you call this operation, take note of the following items:
- You can specify only one CIDR block for each VPC.
- After you create a VPC, you cannot change its CIDR block. However, you can add secondary IPv4 CIDR blocks to the VPC.
- In each VPC, cloud services can use a maximum of 60,000 private IP addresses. You cannot increase the quota.
- After you create a VPC, a vRouter and a route table are automatically created.
- At most three user CIDR blocks can be added to a VPC. If a user CIDR block includes another user CIDR block, the one with the shorter subnet mask takes effect. For example, if both 10.0.0.0/8 and 10.1.0.0/16 are specified, only 10.0.0.0/8 takes effect.
- CreateVpc is an asynchronous operation. After a request is sent, the system returns a request ID and runs the task in the background. You can call the DescribeVpcAttribute operation to query the status of the task:
- If the VPC is in the Creating state, the VPC is being created.
- If the VPC is in the Created state, the VPC is created.
- You cannot repeatedly call the DeleteRouteEntry operation to create default VPCs within a specific time period. However, you can repeatedly call this operation to create custom VPCs within a specific time period.
Debugging
Request parameters
| Parameter | Type | Required | Example | Description |
| Action | String | Yes | CreateVpc | The operation that you want to perform. Set the value to CreateVpc. |
| RegionId | String | Yes | cn-hangzhou | The ID of the region to which the VPC belongs. You can call the DescribeRegions operation to query the most recent region list. |
| CidrBlock | String | No | 172.16.0.0/12 | The CIDR block of the VPC.
|
| Ipv6CidrBlock | String | No | 2408:XXXX:0:6a::/56 | The IPv6 CIDR blocks of the VPC. |
| VpcName | String | No | abc | The name of the VPC. The name must be 1 to 128 characters in length and cannot start with |
| EnableIpv6 | Boolean | No | false | Specifies whether to enable IPv6. Valid values:
|
| Description | String | No | This is my first Vpc | The description of the VPC. The description must be 1 to 256 characters in length and cannot start with |
| ResourceGroupId | String | No | rg-acfmxazb4ph6aiy**** | The ID of the resource group. For more information about resource groups, see What is a resource group? |
| Tag.N.Key | String | No | FinanceDept | The key of tag N to add to the resource. You can specify at most 20 tag keys. The tag key cannot be an empty string. The tag key can be at most 128 characters in length. It cannot start with |
| Tag.N.Value | String | No | FinanceJoshua | The value of tag N to add to the resource. You can specify at most 20 tag values. The tag value can be an empty string. The tag value can be up to 128 characters in length, and cannot contain |
| DryRun | Boolean | No | false | Specifies whether to perform only a dry run, without performing the actual request. Valid values:
|
| UserCidr | String | No | 192.168.0.0/12 | The user CIDR block. Separate user CIDR blocks with commas (,). You can specify up to three user CIDR blocks. For more information about user CIDR blocks, see the |
| ClientToken | String | No | 123e4567-e89b-12d3-a456-426655440000 | 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 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. |
| Ipv6Isp | String | No | BGP | The type of the IPv6 CIDR block of the VPC. Valid values:
Note If your Alibaba Cloud account is allowed to use single-ISP bandwidth, you can set this parameter to ChinaTelecom, ChinaUnicom, or ChinaMobile. |
| Ipv4IpamPoolId | String | No | ipam-pool-sycmt3p2a9v63i**** | The ID of the IP Address Manager (IPAM) pool of the IPv4 type. |
Response parameters
| Parameter | Type | Example | Description |
| VpcId | String | vpc-bp15zckdt37pq72zv**** | The ID of the created VPC. |
| VRouterId | String | vrt-bp1lhl0taikrteen8**** | The ID of the vRouter that is automatically created by the system after the VPC is created. |
| RequestId | String | 0ED8D006-F706-4D23-88ED-E11ED28DCAC0 | The request ID. |
| RouteTableId | String | vtb-bp145q7glnuzdv**** | The ID of the route table that is automatically created by the system after the VPC is created. |
| ResourceGroupId | String | rg-acfmxazb4ph6aiy**** | The ID of the resource group. |
Examples
Sample requests
http(s)://[Endpoint]/?Action=CreateVpc
&RegionId=cn-hangzhou
&CidrBlock=172.16.0.0/12
&Ipv6CidrBlock=2408:XXXX:0:6a::/56
&VpcName=abc
&EnableIpv6=false
&Description=This is my first Vpc
&ResourceGroupId=rg-acfmxazb4ph6aiy****
&Tag=[{"Key":"FinanceDept","Value":"FinanceJoshua"}]
&DryRun=false
&UserCidr=192.168.0.0/12
&ClientToken=123e4567-e89b-12d3-a456-426655440000
&Ipv6Isp=BGP
&Ipv4IpamPoolId=ipam-pool-sycmt3p2a9v63i****
&Common request parameters
Sample success responses
XML format
HTTP/1.1 200 OK
Content-Type:application/xml
<CreateVpcResponse>
<VpcId>vpc-bp15zckdt37pq72zv****</VpcId>
<VRouterId>vrt-bp1lhl0taikrteen8****</VRouterId>
<RequestId>0ED8D006-F706-4D23-88ED-E11ED28DCAC0</RequestId>
<RouteTableId>vtb-bp145q7glnuzdv****</RouteTableId>
<ResourceGroupId>rg-acfmxazb4ph6aiy****</ResourceGroupId>
</CreateVpcResponse>
JSON format
HTTP/1.1 200 OK
Content-Type:application/json
{
"VpcId" : "vpc-bp15zckdt37pq72zv****",
"VRouterId" : "vrt-bp1lhl0taikrteen8****",
"RequestId" : "0ED8D006-F706-4D23-88ED-E11ED28DCAC0",
"RouteTableId" : "vtb-bp145q7glnuzdv****",
"ResourceGroupId" : "rg-acfmxazb4ph6aiy****"
}
Error codes
| HttpCode | Error code | Error message | Description |
| 400 | InvalidParameter | Specified CIDR block is not valid | The specified CIDR block is invalid. |
| 400 | ResourceNotAvailable | Resource you requested is not available in this region or zone. | You cannot create a vSwitch in the current region or zone. |
| 400 | InvalidVpcName.Malformed | Specified VPC name is not valid. | The format of the VPC name is invalid. Enter a valid VPC name and try again. |
| 400 | InvalidVpcDiscription.Malformed | Specified VPC description is not valid. | The format of the VPC description is invalid. |
| 400 | QuotaExceeded.Vpc | VPC quota exceeded. | The number of VPCs in this account has reached the upper limit. |
| 400 | ResourceNotAvailable.Vpc | Resource you requested is not available in this region or zone. | The requested resource is unavailable in this region or zone. |
| 400 | InvalidParameter | Specified UserCidr invalid format. | The format of the user CIDR block is invalid. |
| 400 | InvalidParameter | Specified UserCidr Subnet mask is not valid . | The subnet mask of the user CIDR block is invalid. |
| 400 | InvalidUserCidr.Quota | Specified UserCidr number is greater than 3. | The number of user CIDR blocks has reached the upper limit. |
| 400 | InvalidUserCidr.Malformed | Specified UserCidr overlapping in of 100.64.0.0/10. | The user CIDR block that you specify overlaps with 100.64.0.0/10. |
| 400 | InvalidResourceGroupId | The specified ResourceGroupId does not exist. | The specified resource group ID does not exist. |
| 400 | OperationUnsupported.ResourceGroupId | ResourceGroup is not supported in this region. | The resource group feature is disabled. |
| 400 | UnsupportedFeature.Ipv6Isp | The Ipv6Isp feature is not supported. | The specified IPv6 ISP is not supported. |
| 400 | ResourceNotEnough.Ipv6Cidr | The specified resource of Ipv6Cidr is not enough. | IPv6 addresses are insufficient. |
| 400 | UnsupportedFeature.IPAM | VPCs cannot be created by using IPAM. | You cannot use IPAM to create a VPC. |
| 403 | Forbidden | User not authorized to operate on the specified resource. | You are unauthorized to perform this operation on the specified resource. You can apply for the required permissions and try again. |
| 404 | InvalidRegionId.NotFound | Specified value of "regionId" is not supported. | RegionId is set to an invalid value. Check whether the service is available in the specified region. |
| 500 | InternalError | The request processing has failed due to some unknown error. | Some unknown errors occurred. |
For a list of error codes, see Service error codes.