AWS SDK Version 3 for .NET
API Reference

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Enables the Availability Zone for the specified public subnets for the specified Application Load Balancer. The specified subnets replace the previously enabled subnets.

You can't change the subnets for a Network Load Balancer.


For .NET Core and PCL this operation is only available in asynchronous form. Please refer to SetSubnetsAsync.

Namespace: Amazon.ElasticLoadBalancingV2
Assembly: AWSSDK.ElasticLoadBalancingV2.dll
Version: 3.x.y.z


public virtual SetSubnetsResponse SetSubnets(
         SetSubnetsRequest request
Type: Amazon.ElasticLoadBalancingV2.Model.SetSubnetsRequest

Container for the necessary parameters to execute the SetSubnets service method.

Return Value
The response from the SetSubnets service method, as returned by ElasticLoadBalancingV2.


AllocationIdNotFoundException The specified allocation ID does not exist.
AvailabilityZoneNotSupportedException The specified Availability Zone is not supported.
InvalidConfigurationRequestException The requested configuration is not valid.
InvalidSubnetException The specified subnet is out of available addresses.
LoadBalancerNotFoundException The specified load balancer does not exist.
SubnetNotFoundException The specified subnet does not exist.


This example enables the Availability Zones for the specified subnets for the specified load balancer.

To enable Availability Zones for a load balancer

var response = client.SetSubnets(new SetSubnetsRequest 
    LoadBalancerArn = "arn:aws:elasticloadbalancing:us-west-2:123456789012:loadbalancer/app/my-load-balancer/50dc6c495c0c9188",
    Subnets = new List {

List availabilityZones = response.AvailabilityZones;


Version Information

.NET Framework:
Supported in: 4.5, 4.0, 3.5

Portable Class Library:
Supported in: Windows Store Apps
Supported in: Windows Phone 8.1
Supported in: Xamarin Android
Supported in: Xamarin iOS (Unified)
Supported in: Xamarin.Forms

See Also