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Server Load Balancer:StartShiftLoadBalancerZones

Last Updated:Aug 27, 2026

Removes the EIP or VIP of a zone from the DNS record.

Operation description

Note

If the NLB instance is deployed in only one zone, the EIP or VIP cannot be removed from the DNS record.

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Test

RAM authorization

The table below describes the authorization required to call this API. You can define it in a Resource Access Management (RAM) policy. The table's columns are detailed below:

  • Action: The actions can be used in the Action element of RAM permission policy statements to grant permissions to perform the operation.

  • API: The API that you can call to perform the action.

  • Access level: The predefined level of access granted for each API. Valid values: create, list, get, update, and delete.

  • Resource type: The type of the resource that supports authorization to perform the action. It indicates if the action supports resource-level permission. The specified resource must be compatible with the action. Otherwise, the policy will be ineffective.

    • For APIs with resource-level permissions, required resource types are marked with an asterisk (*). Specify the corresponding Alibaba Cloud Resource Name (ARN) in the Resource element of the policy.

    • For APIs without resource-level permissions, it is shown as All Resources. Use an asterisk (*) in the Resource element of the policy.

  • Condition key: The condition keys defined by the service. The key allows for granular control, applying to either actions alone or actions associated with specific resources. In addition to service-specific condition keys, Alibaba Cloud provides a set of common condition keys applicable across all RAM-supported services.

  • Dependent action: The dependent actions required to run the action. To complete the action, the RAM user or the RAM role must have the permissions to perform all dependent actions.

Action

Access level

Resource type

Condition key

Dependent action

nlb:StartShiftLoadBalancerZones

update

*LoadBalancer

acs:nlb:{#regionId}:{#accountId}:loadbalancer/{#loadbalancerId}

None None

Request parameters

Parameter

Type

Required

Description

Example

ZoneMappings

array<object>

Yes

The zone-to-vSwitch mappings.

Note

You can remove only one IP address (or zone) in each call.

object

No

A zone and its associated vSwitch.

Note

You can remove only one IP address (or zone) in each call.

VSwitchId

string

Yes

The vSwitch ID in the zone. Each zone uses one vSwitch and one subnet by default.

vsw-bp1rmcrwg3erh1fh8****

ZoneId

string

Yes

The zone ID of the NLB instance.

Note

You can remove only one IP address (or zone) in each call.

Call the DescribeZones operation to query available zones.

cn-hangzhou-a

LoadBalancerId

string

Yes

The NLB instance ID.

nlb-83ckzc8d4xlp8o****

DryRun

boolean

No

Specifies whether to perform a dry run. Valid values:

  • true: performs a dry run. The system checks for missing parameter values, incorrect request syntax, and service limits. If the request fails, an error message is returned. If the request passes, the DryRunOperation error code is returned.

  • false (default): performs a dry run and sends the request. If the request passes, a 2xx HTTP status code is returned and the operation is performed.

true

ClientToken

string

No

The client token used to ensure the idempotence of the request.

You can use the client to generate the token. The token must be unique across requests and can contain only ASCII characters.

Note

If you do not specify this parameter, the system uses the request ID as the client token. The request ID is different for each request.

123e4567-e89b-12d3-a456-426655440000

RegionId

string

No

The region ID of the NLB instance.

Call the DescribeRegions operation to query available regions.

cn-hangzhou

Response elements

Element

Type

Description

Example

object

RpcResponse

RequestId

string

The request ID.

54B48E3D-DF70-471B-AA93-08E683A1B45

Examples

Success response

JSON format

{
  "RequestId": "54B48E3D-DF70-471B-AA93-08E683A1B45"
}

Error codes

HTTP status code

Error code

Error message

Description

400 ResourceInConfiguring.loadbalancer The specified resource of loadbalancer is being configured, please try again later. The specified resource of loadbalancer is being configured, please try again later.
403 Forbidden.%s Authentication is failed for %s.
403 Forbidden.NoPermission Authentication is failed for NoPermission. Authentication is failed for NoPermission.
404 ResourceNotFound.loadBalancer The specified resource of loadbalancer is not found. The specified load balancer resource was not found. Please check the input parameters.

See Error Codes for a complete list.

Release notes

See Release Notes for a complete list.