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Server Load Balancer:DescribeZones

Last Updated:Aug 27, 2026

Queries the zones in a region where Network Load Balancer (NLB) is available.

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Test

RAM authorization

No authorization for this operation. If you encounter issues with this operation, contact technical support.

Request parameters

Parameter

Type

Required

Description

Example

ServiceCode

string

No

The service code. Set the value to nlb.

nlb

RegionId

string

No

The region ID. Call the DescribeRegions operation to query available regions.

cn-hangzhou

AcceptLanguage

string

No

The language of the response. Valid values:

  • zh-CN: Chinese

  • en-US (default): English

  • ja: Japanese

zh-CN

ClientToken

string

No

The client token that ensures request idempotence.

Generate the token on the client side. The value must be unique across requests and contain only ASCII characters.

Note

If you do not specify this parameter, the system uses the RequestId value. The RequestId of each request is unique.

123e4567-e89b-12d3-a456-426655440000

Response elements

Element

Type

Description

Example

object

The response parameters.

RequestId

string

The ID of the request.

CEF72CEB-54B6-4AE8-B225-F876FF7BA984

Zones

array<object>

A list of zones.

object

The zone.

LocalName

string

The zone name.

ap_southeast_2

ZoneId

string

The zone ID.

cn-hangzhou-g

Examples

Success response

JSON format

{
  "RequestId": "CEF72CEB-54B6-4AE8-B225-F876FF7BA984",
  "Zones": [
    {
      "LocalName": "ap_southeast_2",
      "ZoneId": "cn-hangzhou-g"
    }
  ]
}

Error codes

HTTP status code

Error code

Error message

Description

400 IllegalParam.AcceptLanguage The param of AcceptLanguage[%s] is illegal from bundle %s
400 SystemBusy System is busy, please try again later.
400 IllegalParam The param of %s is illegal.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.