Use ModifyLoadBalancerAttributes with a CLI

To modify the attributes of a load balancer

This example modifies the CrossZoneLoadBalancing attribute of the specified load balancer.

Command:

aws elb modify-load-balancer-attributes --load-balancer-name my-load-balancer --load-balancer-attributes "{\"CrossZoneLoadBalancing\":{\"Enabled\":true}}"

Output:

{
    "LoadBalancerAttributes": {
        "CrossZoneLoadBalancing": {
            "Enabled": true
        }
    },
    "LoadBalancerName": "my-load-balancer"
}

This example modifies the ConnectionDraining attribute of the specified load balancer.

Command:

aws elb modify-load-balancer-attributes --load-balancer-name my-load-balancer --load-balancer-attributes "{\"ConnectionDraining\":{\"Enabled\":true,\"Timeout\":300}}"

Output:

{
    "LoadBalancerAttributes": {
        "ConnectionDraining": {
            "Enabled": true,
            "Timeout": 300
        }
    },
    "LoadBalancerName": "my-load-balancer"
}

Example 1: This example enables cross-zone load balancing for the specified load balancer.

Edit-ELBLoadBalancerAttribute -LoadBalancerName my-load-balancer -CrossZoneLoadBalancing_Enabled $true

Example 2: This example disables connection draining for the specified load balancer.

Edit-ELBLoadBalancerAttribute -LoadBalancerName my-load-balancer -ConnectionDraining_Enabled $false

Example 3: This example enables access logging for the specified load balancer.

Edit-ELBLoadBalancerAttribute -LoadBalancerName my-load-balancer `
>> -AccessLog_Enabled $true `
>> -AccessLog_S3BucketName amzn-s3-demo-logging-bucket `
>> -AccessLog_S3BucketPrefix my-app/prod `
>> -AccessLog_EmitInterval 60