Last updated: 2020-10-16 18:46:46

1. API Description

Domain name for API request:

This API is used to create a network detection instance.

A maximum of 100 requests can be initiated per second for this API.

Note: This API supports Finance regions. If the common parameter Region is a Finance region, a domain name with the Finance region needs to be specified, for example:

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2. Input Parameters

The following request parameter list only provides API request parameters and some common parameters. For the complete common parameter list, see Common Request Parameters.

Parameter Name Required Type Description
Action Yes String Common parameter. The value used for this API: CreateNetDetect.
Version Yes String Common parameter. The value used for this API: 2017-03-12.
Region Yes String Common parameter. For more information, please see the list of regions supported by the product.
VpcId Yes String The ID of a VPC instance, such as vpc-12345678.
SubnetId Yes String The ID of a subnet instance, such as subnet-12345678.
NetDetectName Yes String The name of a network detection instance. The maximum length is 60 characters.
DetectDestinationIp.N Yes Array of String The array of detection destination IPv4 addresses, which contains at most two IP addresses.
NextHopType Yes String The type of the next hop. Currently supported types are:
VPN: VPN gateway;
DIRECTCONNECT: direct connect gateway;
PEERCONNECTION: peering connection;
NAT: NAT gateway;
NextHopDestination Yes String The next-hop destination gateway. The value is related to NextHopType.
If NextHopType is set to VPN, the value of this parameter is the VPN gateway ID, such as vpngw-12345678.
If NextHopType is set to DIRECTCONNECT, the value of this parameter is the direct connect gateway ID, such as dcg-12345678.
If NextHopType is set to PEERCONNECTION, the value of this parameter is the peering connection ID, such as pcx-12345678.
If NextHopType is set to NAT, the value of this parameter is the NAT gateway ID, such as nat-12345678.
If NextHopType is set to NORMAL_CVM, the value of this parameter is the IPv4 address of the CVM, such as
NetDetectDescription No String Network detection description.

3. Output Parameters

Parameter Name Type Description
NetDetect NetDetect The network detection (NetDetect) object.
RequestId String The unique request ID, which is returned for each request. RequestId is required for locating a problem.

4. Example

Example1 Creating a network detection instance

Input Example
&<Common request parameters>

Output Example

  "Response": {
    "NetDetect": {
      "VpcId": "vpc-12345678",
      "VpcName": "vpc-test",
      "SubnetId": "subnet-12345678",
      "SubnetName": "subnet-test",
      "NetDetectId": "netd-12345678",
      "NetDetectName": "test",
      "DetectDestinationIp": [
      "DetectSourceIp": [
      "NextHopType": "NORMAL_CVM",
      "NextHopDestination": "",
      "NextHopName": "",
      "NetDetectDescription": "",
      "CreateTime": "0000-00-00 00:00:00"
    "RequestId": "6aa316a4-07d2-4355-b87d-40b7f22972b0"

5. Developer Resources

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Command Line Interface

6. Error Code

The following only lists the error codes related to the API business logic. For other error codes, see Common Error Codes.

Error Code Description
InvalidParameter A parameter error occurred.
InvalidParameter.NextHopMismatch The next hop type does not match with the next hop gateway.
InvalidParameterValue Incorrect parameter value.
InvalidParameterValue.Malformed Invalid input parameter format.
InvalidParameterValue.NetDetectSameIp The detection destination IP address is the same as that of another network detection instance under the same subnet in the same VPC.
InvalidParameterValue.TooLong Invalid parameter value. The parameter value is too long.
LimitExceeded Quota limit is reached.
ResourceInsufficient Insufficient resources.
ResourceNotFound The resource does not exist.
UnsupportedOperation.EcmpWithUserRoute Form an ECMP with the user’s custom routes.
UnsupportedOperation.VpcMismatch The resources are not in the same VPC.

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