# `AWSConfigRemediation-EnableCLBCrossZoneLoadBalancing`


 **Description** 

 The `AWSConfigRemediation-EnableCLBCrossZoneLoadBalancing` runbook enables cross-zone load balancing for the Classic Load Balancer (CLB) you specify. 

 [Run this Automation (console)](https://console.amazonaws.cn/systems-manager/automation/execute/AWSConfigRemediation-EnableCLBCrossZoneLoadBalancing) 

**Document type**

Automation

**Owner**

Amazon

**Platforms**

Linux, macOS, Windows

**Parameters**
+ AutomationAssumeRole

  Type: String

  Description: (Required) The Amazon Resource Name (ARN) of the Amazon Identity and Access Management (IAM) role that allows Systems Manager Automation to perform the actions on your behalf.
+ LoadBalancerName

  Type: String

  Description: (Required) The name of the CLB that you want to enable cross-zone load balancing on.

**Required IAM permissions**

The `AutomationAssumeRole` parameter requires the following actions to use the runbook successfully.
+  `ssm:StartAutomationExecution` 
+  `ssm:GetAutomationExecution` 
+  `elb:DescribeLoadBalancerAttributes` 
+  `elb:ModifyLoadBalancerAttributes` 

 **Document Steps** 
+  `aws:executeAwsApi` - Enables cross-zone load balancing for the CLB you specify in the `LoadBalancerName` parameter. 
+  `aws:assertAwsResourceProperty` - Verifies cross-zone load balancing has been enabled on the CLB.