Updating Subnet Information

Function

This API is used to update information about a subnet.

URI

PUT /v1/{project_id}/vpcs/{vpc_id}/subnets/{subnet_id}

Table 1 describes the parameters.

Table 1 Parameter description
Parameter	Mandatory	Description
project_id	Yes	Specifies the project ID. For details about how to obtain a project ID, see Obtaining a Project ID.
vpc_id	Yes	Specifies the VPC ID of the subnet.
subnet_id	Yes	Specifies the subnet ID that uniquely identifies the subnet. If you use the management console, the value of this parameter is the Network ID value.

Request Parameters

Table 2 Request parameter
Parameter	Mandatory	Type	Description
subnet	Yes	subnet object	Specifies the subnet objects.

Table 3 subnet objects
Parameter	Mandatory	Type	Description
name	Yes	String	Specifies the subnet name. The value can contain 1 to 64 characters, including letters, digits, underscores (_), hyphens (-), and periods (.).
description	No	String	Provides supplementary information about the subnet. The value can contain no more than 255 characters and cannot contain angle brackets (< or >).
ipv6_enable	No	Boolean	Specifies whether IPv6 is enabled. The value can be true (enabled) or false (disabled).
dhcp_enable	No	Boolean	Specifies whether DHCP is enabled for the subnet. The value can be true (enabled) or false (disabled). If this parameter is left blank, the system automatically sets it to true by default. If this parameter is set to false, newly created ECSs cannot obtain IP addresses, and usernames and passwords cannot be injected using Cloud-init.
primary_dns	No	String	Specifies the primary IP address of DNS server on the subnet. The value must be a valid IP address.
secondary_dns	No	String	Specifies the standby IP address of DNS server on the subnet. The value must be a valid IP address. The value of secondary_dns must be different from that of primary_dns. If there is only one DNS server address, only primary_dns is displayed.
dnsList	No	Array of strings	Specifies the DNS server address list of a subnet. This field is required if you need to use more than two DNS servers. This parameter value is the superset of both DNS server address 1 and DNS server address 2.

Example Request

Change the name of the subnet whose ID is 4779ab1c-7c1a-44b1-a02e-93dfc361b32d to subnet02, and also change its DNS and DHCP configurations.

PUT https://{Endpoint}/v1/{project_id}/vpcs/{vpc_id}/subnets/4779ab1c-7c1a-44b1-a02e-93dfc361b32d

{
    "subnet": {
        "name": "subnet02",
        "ipv6_enable": true,
        "dhcp_enable": false,
        "primary_dns": "114.xx.xx.115",
        "secondary_dns": "114.xx.xx.116"
    }
}

Response Parameters

Table 4 Response parameter
Parameter	Type	Description
subnet	subnet object	Specifies the subnet objects.

Table 5 subnet objects
Parameter	Type	Description
id	String	Specifies a resource ID in UUID format.
status	String	Specifies the status of the subnet. The value can be ACTIVE, UNKNOWN, or ERROR. ACTIVE: indicates that the subnet has been associated with a VPC. UNKNOWN: indicates that the subnet has not been associated with a VPC. ERROR: indicates that the subnet is abnormal.

Example Response

{
    "subnet": {
        "id": "4779ab1c-7c1a-44b1-a02e-93dfc361b32d",
        "status": "ACTIVE"
    }
}

Status Code

See Status Codes.

Error Code

See Error Codes.

Parent topic: Subnet

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