---
title: "changeLoadBalancerInstanceConfiguration"
slug: "cli-vloadbalancer-loadbalancer-changeloadbalancerinstanceconfiguration"
tags: ["Load Balancer", "VPC"]
updated: 2026-10-08T05:09:30Z
published: 2026-10-08T05:09:30Z
canonical: "cli.ncloud-docs.com/cli-vloadbalancer-loadbalancer-changeloadbalancerinstanceconfiguration"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://cli.ncloud-docs.com/llms.txt
> Use this file to discover all available pages before exploring further.

# changeLoadBalancerInstanceConfiguration

Available in VPC

Change load balancer instance settings.

## Syntax

The `changeLoadBalancerInstanceConfiguration` syntax is as follows:

```
./ncloud vloadbalancer changeLoadBalancerInstanceConfiguration \
    --loadBalancerInstanceNo <load-balancer-instance-no> \
    [--throughputTypeCode <SMALL|MEDIUM|LARGE|DYNAMIC|XLARGE>] \
    [--idleTimeout <idle-timeout>] \
    [--regionCode <KR|SGN|JPN>] \
    [--output <json|xml>]
```

## Options

This section describes the options available when running `changeLoadBalancerInstanceConfiguration`.

### Required options

The following options are required for `changeLoadBalancerInstanceConfiguration`.

| Options | Type | Required | Description |
| --- | --- | --- | --- |
| `--loadBalancerInstanceNo` | String | Required | Load balancer instance number - See [getLoadBalancerInstanceList](/docs/en/cli-vloadbalancer-loadbalancer-getloadbalancerinstancelist). |
| `--throughputTypeCode` | String | Conditional | Load balancing performance type - `SMALL` (default) \| `MEDIUM` \| `LARGE` \| `DYNAMIC` \| `XLARGE` - Available values are limited depending on the load balancer type. - Application, Network Proxy Load Balancer: `SMALL` (default) \| `MEDIUM` \| `LARGE` \| `XLARGE` - Network Load Balancer: `DYNAMIC` (default) |
| `--idleTimeout` | Integer | Conditional | Connection idle timeout (second) - `1`-`3600` (default: `60`) - Can't be set if the load balancer type is `NETWORK`. |

### Common options

For information about the options common to all `vloadbalancer` subcommands, see [Load Balancer (VPC) options](/docs/en/cli-vloadbalancer#%EC%98%B5%EC%85%98).

## Examples

If the request to change the load balancer instance settings is successful, the configuration information for the updated instance and the change status are returned.

### Command

The command example is as follows:

```
./ncloud vloadbalancer changeLoadBalancerInstanceConfiguration \
    --loadBalancerInstanceNo 41112223 \
    --throughputTypeCode SMALL \
    --idleTimeout 120 \
    --regionCode KR \
    --output json
```

### Output

The output example is as follows:

```
{
  "changeLoadBalancerInstanceConfigurationResponse": {
    "totalRows": 1,
    "loadBalancerInstanceList": [
      {
        "loadBalancerInstanceNo": "41112223",
        "loadBalancerInstanceStatus": {
          "code": "USED",
          "codeName": "LB USED state"
        },
        "loadBalancerInstanceOperation": {
          "code": "CHANG",
          "codeName": "LB CHANGE OP"
        },
        "loadBalancerInstanceStatusName": "Changing",
        "loadBalancerDescription": "Updated load balancer description",
        "createDate": "2026-07-07T17:12:11+0900",
        "loadBalancerName": "lb-test-01",
        "loadBalancerDomain": "lb-test-01-41112223-16dd7a5738c1.kr.lb.naverncp.com",
        "loadBalancerIpList": [
          "10.0.2.6"
        ],
        "loadBalancerType": {
          "code": "APPLICATION",
          "codeName": "Application Load Balancer"
        },
        "loadBalancerNetworkType": {
          "code": "PRIVATE",
          "codeName": "Private"
        },
        "throughputType": {
          "code": "SMALL",
          "codeName": "Small"
        },
        "idleTimeout": 120,
        "vpcNo": "12345678",
        "regionCode": "KR",
        "accessLogUseYn": "N",
        "subnetNoList": [
          "23456790"
        ],
        "loadBalancerSubnetList": [
          {
            "zoneCode": "KR-1",
            "subnetNo": "23456790",
            "publicIpInstanceNo": ""
          }
        ],
        "loadBalancerListenerNoList": [
          "60001111"
        ]
      }
    ],
    "requestId": "d4e5f6a7-b8c9-0123-defa-456789012345",
    "returnCode": "0",
    "returnMessage": "success"
  }
}
```