Function

This API is used to change the specification of a gateway. Currently, only pay-per-use gateways are supported.

Calling Method

For details, see Calling APIs.

URI

POST /v5/{project_id}/vpn-gateways/{vgw_id}/update-specification

**Table 1** Parameter description
Parameter	Type	Mandatory	Description
project_id	String	Yes	Specifies a project ID. You can obtain the project ID by referring to Obtaining the Project ID.
vgw_id	String	Yes	Specifies the ID of a VPN gateway instance.

Request

Request parameters

**Table 2** Request parameters
Parameter	Type	Mandatory	Description
vpn_gateway	UpdateVgwSpecificationRequestBodyContent object	Yes	Specifies the VPN gateway object.

**Table 3** UpdateVgwSpecificationRequestBodyContent
Parameter	Type	Mandatory	Description
flavor	String	Yes	Specifies the new specification of the VPN gateway. Value range: Basic: The maximum forwarding bandwidth is 100 Mbit/s. Professional1: The maximum forwarding bandwidth is 300 Mbit/s. Professional1-NonFixedIP: The maximum forwarding bandwidth is 300 Mbit/s. (It is currently not supported.) Professional2: The maximum forwarding bandwidth is 1 Gbit/s. Professional2-NonFixedIP: The maximum forwarding bandwidth is 1 Gbit/s. (It is currently not supported.) NOTE: The specification of a VPN gateway cannot be changed between Basic and Professional. For details about the value range supported by each gateway, see the supported_flavors field in the response to the request for Querying a Specified VPN Gateway.

Example request

POST https://{Endpoint}/v5/{project_id}/vpn-gateways/{vgw_id}/update-specification

{
    "vpn_gateway": {
        "flavor": "Basic"
    }
}

Response

Response parameters

Returned status code 200: successful operation

**Table 4** Parameters in the response body
Parameter	Type	Description
vpn_gateway	ResponseVpnGateway object	Specifies the VPN gateway object.
request_id	String	Specifies a request ID.

**Table 5** ResponseVpnGateway
Parameter	Type	Description
id	String	Specifies a VPN gateway ID. The value is a UUID containing 36 characters.
name	String	Specifies the name of a VPN gateway. The value is a string of 1 to 64 characters, which can contain digits, letters, underscores (_), and hyphens (-).
network_type	String	Specifies the network type of the VPN gateway. Value range: public: public network private: private network The default value is public.
attachment_type	String	Specifies the association mode. Value range: vpc: virtual private cloud. er: enterprise router
ip_version	String	Specifies the IP protocol version of the VPN gateway. The value is ipv4.
er_id	String	Specifies the ID of the enterprise router instance to which the VPN gateway connects. This parameter is available only when attachment_type is set to er.
vpc_id	String	vpc_id specifies the ID of the service VPC associated with the VPN gateway. This parameter is available only when attachment_type is set to vpc.
local_subnets	Array of String	Specifies a local subnet. This subnet is a cloud-side subnet that needs to communicate with an on-premises network through a VPN. An example subnet is 192.168.52.0/24. This parameter is returned only when attachment_type is set to vpc.
local_subnets_v6	Array of String	(Currently not supported) Specifies an IPv6 local subnet. This subnet is a cloud-side subnet that needs to communicate with an on-premises network through a VPN. An example subnet is 16af:cacc:1097::/48. This parameter is returned only when attachment_type is set to vpc and ip_version is set to ipv6.
connect_subnet	String	Specifies the ID of the VPC subnet used by the VPN gateway.
bgp_asn	Long	Specifies the BGP AS number of the VPN gateway.
flavor	String	Specifies the specification of the VPN gateway. Value range: Basic: The maximum forwarding bandwidth is 100 Mbit/s. Professional1: The maximum forwarding bandwidth is 300 Mbit/s. Professional1-NonFixedIP: The maximum forwarding bandwidth is 300 Mbit/s. (It is currently not supported.) Professional2: The maximum forwarding bandwidth is 1 Gbit/s. Professional2-NonFixedIP: The maximum forwarding bandwidth is 1 Gbit/s. (It is currently not supported.)
availability_zone_ids	Array of String	Specifies the AZ where the VPN gateway is deployed. This parameter is available when an AZ is specified. If no AZ is specified, this parameter is available only when the VPN gateway is in ACTIVE state.
connection_number	Integer	Specifies the maximum number of VPN connections supported for the VPN gateway.
used_connection_number	Integer	Specifies the number of VPN connections that have been used by the VPN gateway.
used_connection_group	Integer	Specifies the number of VPN connection groups that have been used by the VPN gateway. A connection group consists of two connections between a customer gateway and a VPN gateway. By default, 10 VPN connection groups are included free of charge with the purchase of a VPN gateway.
enterprise_project_id	String	Specifies an enterprise project ID. The value is a UUID containing 36 characters. If no enterprise project ID is specified during VPN gateway creation, 0 is returned, indicating that the resource belongs to the default enterprise project. Note that 0 is not the ID of an existing enterprise project.
eip1	ResponseEip object	Specifies the first EIP of the VPN gateway in the active-active mode or the active EIP of the VPN gateway in the active/standby mode. This parameter is available when the VPN gateway is in ACTIVE state.
eip2	ResponseEip object	Specifies the second EIP of the VPN gateway in the active-active mode or the standby EIP of the VPN gateway in the active/standby mode. This parameter is available when the VPN gateway is in ACTIVE state.
created_at	String	Specifies the time when the VPN gateway is created. This parameter is available when the VPN gateway is in ACTIVE state. The UTC time format is yyyy-MM-ddTHH:mm:ss.SSSZ.
updated_at	String	Specifies the last update time. This parameter is available when the VPN gateway is in ACTIVE state. The UTC time format is yyyy-MM-ddTHH:mm:ss.SSSZ.
master_eip	master_eip	Specifies the first EIP used by the VPN gateway. This parameter is available when the VPN gateway is in ACTIVE state. This parameter has been deprecated, but is retained for compatibility purposes. Using this parameter is not recommended.
slave_eip	slave_eip	Specifies the second EIP used by the VPN gateway. This parameter is available when the VPN gateway is in ACTIVE state. This parameter has been deprecated, but is retained for compatibility purposes. Using this parameter is not recommended.
access_vpc_id	String	Specifies the ID of the access VPC used by the VPN gateway. The value is a UUID containing 36 characters.
access_subnet_id	String	Specifies the ID of the subnet in the access VPC used by the VPN gateway. The value is a UUID containing 36 characters.
access_private_ip_1	String	Specifies a private IP address used by the VPN gateway to connect to a customer gateway when the network type is private network. This address is the first private IP address of the VPN gateway in active-active mode or the active private IP address of the VPN gateway in the active/standby mode. An example is 192.168.52.9. This parameter is available only when network_type is set to private.
access_private_ip_2	String	Specifies a private IP address used by the VPN gateway to connect to a customer gateway when the network type is private network. This address is the second private IP address of the VPN gateway in active-active mode or the standby private IP address of the VPN gateway in the active/standby mode. An example is 192.168.52.9. This parameter is available only when network_type is set to private.
ha_mode	String	Specifies the HA mode of the gateway. The value can be active-active or active-standby. Value range: active-active, active-standby
tags	Array of VpnResourceTag objects	Specifies a tag list.

**Table 6** ResponseEip
Parameter	Type	Description
id	String	Specifies an EIP ID. The value is a UUID containing 36 characters. If the default enterprise project is used, 0 is returned.
ip_version	Integer	Specifies the EIP version. The value can only be 4, indicating IPv4 address.
type	String	Specifies the EIP type. The value can be 5_bgp (dynamic BGP). For the value range, see the type field in "Assigning an EIP" in the Elastic IP API Reference.
ip_address	String	Specifies an EIP, that is, a public IPv4 address. The value is an IPv4 address, for example, 88.*.*.11.
charge_mode	String	Specifies the billing mode of EIP bandwidth. Value range: bandwidth: billed by bandwidth traffic: billed by traffic
bandwidth_id	String	Specifies the bandwidth ID of an EIP. The value is a UUID containing 36 characters.
bandwidth_size	Integer	Specifies the bandwidth (Mbit/s) of an EIP. The maximum EIP bandwidth varies according to regions and depends on the EIP service. You can submit a service ticket to increase the maximum EIP bandwidth under your account. The value ranges from 1 to 1000. For details, see the EIP documentation.
bandwidth_name	String	Specifies the bandwidth name of an EIP. The value is a string of 1 to 64 characters, which can contain digits, letters, underscores (_), hyphens (-), and periods (.).
share_type	String	Specifies the bandwidth type. Value range: PER: dedicated bandwidth WHOLE: shared bandwidth

**Table 7** VpnResourceTag
Parameter	Type	Description
key	String	Specifies a tag key. The value is a string of 1 to 128 characters that can contain digits, letters, Spanish characters, Portuguese characters, spaces, and special characters (_ . : = + - @).
value	String	Specifies a tag value. The value is a string of 0 to 255 characters that can contain digits, letters, Spanish characters, Portuguese characters, spaces, and special characters (_ . : = + - @).

Example response

Response to the request for updating a VPN gateway that does not support access via non-fixed IP addresses

{
    "vpn_gateway": {
        "id": "620d99b8-demo-a8df-va86-200b868f2d7d",
        "name": "vpngw-4321",
        "attachment_type": "vpc",
        "network_type": "public",
        "ip_version": "ipv4",
        "vpc_id": "cb4a631d-demo-a8df-va86-ca3fa348c36c",
        "local_subnets": [
            "192.168.0.0/24"
        ],
        "connect_subnet": "f5741286-demo-a8df-va86-2c82bd9ee114",
        "bgp_asn": 64512,
        "flavor": "Professional1",
        "availability_zone_ids": ["eu-de-01", "eu-de-02"],
        "connection_number": 200,
        "used_connection_number": 0,
        "used_connection_group": 0,
        "enterprise_project_id": "0",
        "eip1": {
            "id": "f1469b4a-demo-a8df-va86-bb7de91cf493",
            "ip_version": 4,
            "type": "5_bgp",
            "ip_address": "88.***.***.102",
            "charge_mode": "bandwidth",
            "bandwidth_id": "cff40e5e-demo-a8df-va86-7366077bf097",
            "bandwidth_size": 300,
            "bandwidth_name": "vpngw-bandwidth-1391"
        },
        "eip2": {
            "id": "6ad8e297-demo-a8df-va86-da0f885ccb98",
            "ip_version": 4,
            "type": "5_bgp",
            "ip_address": "88.***.***.188",
            "charge_mode": "bandwidth",
            "bandwidth_id": "d290f1ee-demo-a8df-va86-d701748f0851",
            "bandwidth_size": 300,
            "bandwidth_name": "vpngw-bandwidth-1392"
        },
	"created_at": "2025-06-15T08:56:09.386Z",
        "updated_at": "2025-06-15T11:13:13.677Z",
        "access_vpc_id": "0cf79a3f-demo-a8df-va86-d7ace626b0fa",
        "access_subnet_id": "f5741286-demo-a8df-va86-2c82bd9ee114",
        "ha_mode": "active-active"
    },
    "request_id": "33a2b77a-65f9-4fa0-90bd-4bd42038eb41"
}

Response returned when a VPN gateway being created fails to be updated

{
    "error_code":"VPN.0003",
    "error_msg":"resource (type=GATEWAY, ID=ff9bdca6-demo-a8df-va86-e4bcc1ea52bc) is not ready, currently CREATING",
    "request_id": "abafe41c-7744-41af-bf3d-4452872af799"
}

Status Codes

For details, see Status Codes.

Changing the Specification of a Gateway

Function

Calling Method

URI

Request

Response

Status Codes