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Load Balancer

NLB Instance

DescribeNLBZones - Querying the availability zone information in the current region

Call DescribeNLBZones API to query the availability zone information in the current region.

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Request parameters

Action String required Example: DescribeNLBZones

Action to execute. Set the value to DescribeNLBZones.

Version String required Example: 2020-04-01

Current API version is 2020-04-01.

Response parameters

RequestId String Example: 2024092952539010225146063030****

Request ID.

Zones Object[] Example: --

Availability zone list.

ZoneId String Example: cn-beijing-a

Availability zone ID.

Request examples

GET /?Action=DescribeNLBZones&Version=2020-04-01 HTTP/1.1​
Host: clb.cn-beijing.volcengineapi.com​
Date: 20260310T094038Z​
Authorization: HMAC-SHA256 Credential=Adfks******wekfwe/20251121/cn-beijing/clb/request, SignedHeaders=host;x-date, Signature=47a7d934ff7b37c03938******cd7b8278a40a1057690c401e92246a0e41085f​

Response examples

{​
    "ResponseMetadata": {​
        "RequestId": "20230604110420****100232280022D31",​
        "Action": "DescribeNLBZones",​
        "Version": "2020-04-01",​
        "Service": "clb",​
        "Region": "cn-beijing"​
    },​
    "Result": {​
        "RequestId": "2024092952539010225146063030****",​
        "Zones": [​
            {​
                "ZoneId": "cn-beijing-a"​
            }​
        ]​
    }​
}​

Error codes

This section displays only the error codes of the current API. For more error codes, see Common error codes.

Status code	Error codes	Error message	Notes
400	DryRunOperation	Exception raised to indicate a successfully authorized action when the DryRun flag is set to true.	This request is set to DryRun. The action is authorized but not executed.
400	IdempotentParameterMismatch	Arguments on this idempotent request are inconsistent with arguments used in previous request(s).	The parameters of this idempotent request are inconsistent with those used in the previous request.
400	InvalidClientToken.Malformed	The specified ClientToken is malformed.	The specified ClientToken format is invalid.
409	InvalidOperation.Conflict	The specified resource operation conflicts.	The specified resource action conflicted.
412	IdempotentProcessing	The request uses the same client token as a previous one that is still in process.	The idempotent request is in progress.

Last updated: 2026.05.09 10:25:36