---
title: "changeLoadBalancerInstanceConfiguration"
slug: "cli-loadbalancer-changeloadbalancerinstanceconfiguration"
tags: ["Load Balancer"]
updated: 2026-09-17T10:08:45Z
published: 2026-09-17T10:08:45Z
canonical: "cli.ncloud-docs.com/cli-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

Can be used in a Classic environment.

## Overview

Changes the settings of a load balancer instance.

## Description

Changes the settings value of a load balancer instance.

## Request parameter

| Parameter name | Requirement status | Type | Restrictions | Description |
| --- | --- | --- | --- | --- |
| loadBalancerInstanceNo | Yes | String |  | - The number for the load balancer instance to change the settings for The instance number can be obtained through the getLoadBalacerInstanceList action. |
| loadBalancerAlgorithmTypeCode | Yes | String | Min: 1, Max: 5 | - Load balancer algorithm classification code Algorithms that can be entered: ROUND ROBIN (RR), LEAST_CONNECTION (LC) |
| loadBalancerDescription | No | String | Min: 1, Max: 1000 | Description of the load balancer to modify |
| loadBalancerRuleList.protocolTypeCode | Yes | String | Min: 1, Max: 5 | - Protocol classification code of the load balancer rule The following codes can be entered: HTTP \| TCP |
| loadBalancerRuleList.loadBalancerPort | Yes | Integer | Min: 1, Max: 65534 | Load balancer port of the load balancer rule |
| loadBalancerRuleList.serverPort | Yes | Integer | Min: 1, Max: 65534 | Server port for the load balancer rule |
| loadBalancerRuleList.l7HealthCheckPath | Conditional | String | Min: 1, Max: 600 | - Health check path for the load balancer rule Required field if the loadBalancerRuleList.N.protocolTypeCode value is HTTP |
| loadBalancerRuleList.certificateName | Conditional | String | Min: 1, Max: 300 | The load balancer rule must be entered when creating a load balancer. Load balancer's SSL public certificate Required field if the loadBalancerRuleList.protocloTypeCode value is SSL/HTTPS |
| loadBalancerRuleList.proxyProtocolUseYn | Conditional | String | Min: 1, Max: 300 | Load balancer rule list.Proxy protocol use status |
| loadBalancerRuleList.N.stickySessionUseYn | No | String |  | - Access by session usage status It can only be set when the loadBalancerRuleList.N.protocloTypeCode value is `HTTP` `HTTPS`. Options: `Y (enabled)`\|`N (disabled)` |
| loadBalancerRuleList.N.http2UseYn | No | String |  | - HTTP/2 protocol use status It can only be set when the loadBalancerRuleList.N.protocloTypeCode value is `HTTPS`. Options: `Y (enabled)`\|`N (disabled)` |
| loadBalancerRuleList.N.serverProtocolTypeCode | No | String |  | - Server protocol classification code It can only be set when the loadBalancerRuleList.N.protocloTypeCode value is `HTTPS`. Options: `HTTP` `HTTPS` Default: `HTTP` |

## Response data type

- LoadBalancerInstanceList type

| LoadBalancerInstanceList extends CommonResponse |
| --- |
| private Integer totalRows; |
| private List<LoadBalancerInstance> loadBalancerInstanceList = new ArrayList<LoadBalancerInstance>(); |

| LoadBalancerInstance |
| --- |
| private String loadBalancerInstanceNo; |
| private String virtualIp; |
| private String loadBalancerName; |
| private CommonCode loadBalancerAlgorithmType; |
| private String loadBalancerDescription; |
| private Date createDate; |
| private String domainName; |
| private String loadBalancerInstanceStatusName; |
| private CommonCode loadBalancerInstanceStatus; |
| private CommonCode loadBalancerInstanceOperation; |
| private CommonCode networkUsageType; |
| private Boolean isHttpKeepAlive; |
| private Integer connectionTimeout; |
| private String certificateName; |
| private List<loadbalancerrule data-tomark-pass=""> loadBalancerRuleList;</loadbalancerrule> |
| private List<loadbalancedserverinstance data-tomark-pass=""> loadBalancedServerInstanceList;</loadbalancedserverinstance> |

## Examples

### Call

```
ncloud loadbalancer changeLoadBalancerInstanceConfiguration --loadBalancerInstanceNo 465475 --loadBalancerAlgorithmTypeCode RR --loadBalancerRuleList protocolTypeCode=HTTP,loadBalancerPort=80,serverPort=1024,l7HealthCheckPath=/l7check.html,proxyProtocolUseYn=N
```

### Response

```
{
  "changeLoadBalancerInstanceConfigurationResponse": {
    "requestId": "962fa0f6-b7b3-4d33-8567-862f33c87771",
    "returnCode": 0,
    "returnMessage": "success",
    "totalRows": 1,
    "loadBalancerInstanceList": [
     {
       "loadBalancerInstanceNo": 465475,
       "virtualIp": "49.236.164.49,49.236.164.68",
       "loadBalancerName": "penguinlb",
       "loadBalancerAlgorithmType": {
         "code": "RR",
         "codeName": "Round Robin"
       },
       "loadBalancerDescription": "",
       "createDate": "0518-12-03T12:25:18+0900",
       "domainName": "slb-465475.ncloudslb.com",
       "loadBalancerInstanceStatusName": "changing",
       "loadBalancerInstanceStatus": {
         "code": "USED",
         "codeName": "NET USED state"
       },
       "loadBalancerInstanceOperation": {
         "code": "CHANG",
         "codeName": "NET CHANGE OP"
       },
       "networkUsageType": {
         "code": "PBLIP",
         "codeName": "Public"
       },
       "isHttpKeepAlive": false,
       "connectionTimeout": 60,
       "certificateName": "",
       "loadBalancerRuleList": [
         {
             "protocolType": {
               "code": "HTTP",
               "codeName": "http"
             },
             "loadBalancerPort": 80,
             "serverPort": 1024,
             "l7HealthCheckPath": "/l7check.html",
             "certificateName": "",
             "proxyProtocolUseYn": "N",
             "stickySessionUseYn": "N",
             "http2UseYn": "N"
         }
       ],
       "loadBalancedServerInstanceList": [
         ""
       ]
      }
    ]
  }
}
```

```
<?xml version="1.0" encoding="UTF-8" ?>
<changeLoadBalancerInstanceConfigurationResponse>
  <requestId>962fa0f6-b7b3-4d33-8567-862f33c87771</requestId>
  <returnCode>0</returnCode>
  <returnMessage>success</returnMessage>
  <totalRows>1</totalRows>
  <loadBalancerInstanceList>
    <loadBalancerInstanceNo>465475</loadBalancerInstanceNo>
    <virtualIp>49.236.164.49,49.236.164.68</virtualIp>
    <loadBalancerName>penguinlb</loadBalancerName>
    <loadBalancerAlgorithmType>
      <code>RR</code>
      <codeName>Round Robin</codeName>
    </loadBalancerAlgorithmType>
    <loadBalancerDescription></loadBalancerDescription>
    <createDate>0518-12-03T12:25:18+0900</createDate>
    <domainName>slb-465475.ncloudslb.com</domainName>
    <loadBalancerInstanceStatusName>changing</loadBalancerInstanceStatusName>
    <loadBalancerInstanceStatus>
      <code>USED</code>
      <codeName>NET USED state</codeName>
    </loadBalancerInstanceStatus>
    <loadBalancerInstanceOperation>
      <code>CHANG</code>
      <codeName>NET CHANGE OP</codeName>
    </loadBalancerInstanceOperation>
    <networkUsageType>
      <code>PBLIP</code>
      <codeName>Public</codeName>
    </networkUsageType>
    <isHttpKeepAlive>false</isHttpKeepAlive>
    <connectionTimeout>60</connectionTimeout>
    <certificateName></certificateName>
    <loadBalancerRuleList>
      <protocolType>
        <code>HTTP</code>
        <codeName>http</codeName>
      </protocolType>
      <loadBalancerPort>80</loadBalancerPort>
      <serverPort>1024</serverPort>
      <l7HealthCheckPath>/l7check.html</l7HealthCheckPath>
      <certificateName></certificateName>
      <proxyProtocolUseYn>N</proxyProtocolUseYn>
      <stickySessionUseYn>N</stickySessionUseYn>
      <http2UseYn>N</http2UseYn>
    </loadBalancerRuleList>
    <loadBalancedServerInstanceList></loadBalancedServerInstanceList>
  </loadBalancerInstanceList>
</changeLoadBalancerInstanceConfigurationResponse>
```