There are more AWS SDK examples available in the [AWS Doc SDK Examples](https://github.com/awsdocs/aws-doc-sdk-examples) GitHub repo.

# Use `SetLoadBalancerPoliciesForBackendServer` with a CLI
<a name="elastic-load-balancing_example_elastic-load-balancing_SetLoadBalancerPoliciesForBackendServer_section"></a>

The following code examples show how to use `SetLoadBalancerPoliciesForBackendServer`.

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#### [ CLI ]

**AWS CLI**  
**Example 1: To replace the policies associated with a port for a backend instance**  
The following `set-load-balancer-policies-for-backend-server` example replaces the policies that are currently associated with the specified port.  

```
aws elb set-load-balancer-policies-for-backend-server \
    --load-balancer-name {{my-load-balancer}} \
    --instance-port {{80}} \
    --policy-names {{my-ProxyProtocol-policy}}
```
This command produces no output.  
For more information, see [Configure proxy protocol for your Classic Load Balancer](https://docs.aws.amazon.com/elasticloadbalancing/latest/classic/enable-proxy-protocol.html) in the *Classic Load Balancers Guide*.  
**Example 2: To remove all policies that are currently associated with a port on your backend instance**  
The following `set-load-balancer-policies-for-backend-server` example removes all policies associated with the specified port.  

```
aws elb set-load-balancer-policies-for-backend-server \
    --load-balancer-name {{my-load-balancer}} \
    --instance-port {{80}} \
    --policy-names {{[]}}
```
This command produces no output.  
To confirm that the policies are removed, use the `describe-load-balancer-policies` command.  
For more information, see [Configure proxy protocol for your Classic Load Balancer](https://docs.aws.amazon.com/elasticloadbalancing/latest/classic/enable-proxy-protocol.html) in the *Classic Load Balancers Guide*.  
+  For API details, see [SetLoadBalancerPoliciesForBackendServer](https://awscli.amazonaws.com/v2/documentation/api/latest/reference/elb/set-load-balancer-policies-for-backend-server.html) in *AWS CLI Command Reference*. 

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#### [ PowerShell ]

**Tools for PowerShell V4**  
**Example 1: This example replaces the policies for the specified port with the specified policy.**  

```
Set-ELBLoadBalancerPolicyForBackendServer -LoadBalancerName my-load-balancer -InstancePort 80 -PolicyName my-ProxyProtocol-policy
```
**Example 2: This example removes all policies associated with the specified port.**  

```
Set-ELBLoadBalancerPolicyForBackendServer -LoadBalancerName my-load-balancer -InstancePort 80
```
+  For API details, see [SetLoadBalancerPoliciesForBackendServer](https://docs.aws.amazon.com/powershell/v4/reference) in *AWS Tools for PowerShell Cmdlet Reference (V4)*. 

**Tools for PowerShell V5**  
**Example 1: This example replaces the policies for the specified port with the specified policy.**  

```
Set-ELBLoadBalancerPolicyForBackendServer -LoadBalancerName my-load-balancer -InstancePort 80 -PolicyName my-ProxyProtocol-policy
```
**Example 2: This example removes all policies associated with the specified port.**  

```
Set-ELBLoadBalancerPolicyForBackendServer -LoadBalancerName my-load-balancer -InstancePort 80
```
+  For API details, see [SetLoadBalancerPoliciesForBackendServer](https://docs.aws.amazon.com/powershell/v5/reference) in *AWS Tools for PowerShell Cmdlet Reference (V5)*. 

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