# 3. Load Balancer

## <mark style="color:green;">**Overview**</mark> <a href="#overview" id="overview"></a>

HI GIO CLOUD supports Layer-4 and Layer-7 Load balancer.

Configure load balancing for an application in HI GIO CLOUD. The main configuration steps need to be performed as follows:

| Item                                | Description                                                                                                                                                                                   |
| ----------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| **Service Engine Group** (required) | Instance of Load balancer (Preparing by HI GIO support)                                                                                                                                       |
| **Server Pool** (required)          | Pool member VMs that are running the same application                                                                                                                                         |
| **Monitor Profile** (required)      | <p>Define how Load balancer health check Pool member’s application status.</p><p>HI GIO Portal has built-in support for Monitor Profile (Ping/TCP/HTTP/HTTPS,…) default that can be used.</p> |
| **Persistence Profile** (optional)  | How load balancer to direct all requests originating from a single client to a single backend VM                                                                                              |
| **SSL Certificate** (optional)      | If you want to do SSL termination on the Load balancer, you must register an SSL certificate on Portal.                                                                                       |
| **Virtual Service** (required)      | Virtual Services (VIP) is the main object of load balancing, which is a service representing the pool server backend.                                                                         |

## <mark style="color:green;">**Guideline**</mark> <a href="#guideline" id="guideline"></a>

Please refer to the Load Balancer usage guide in the list below:

[1 IMPORT SSL CERTIFICATE](https://docs.higiocloud.vn/network/3.-load-balancer/import-ssl-certificate)

[2 CREATE POOLS ON LOAD BALANCER](https://docs.higiocloud.vn/network/3.-load-balancer/create-pools-on-load-balancing)

[3 CREATE VIRTUAL SERVICE (VS) ON LOAD BALANCER](https://docs.higiocloud.vn/network/3.-load-balancer/create-virtual-service-vs-on-load-balancing)

[4 OPEN FIREWALL RULE AND PUBIC SERVICE TO INTERNET](https://docs.higiocloud.vn/network/3.-load-balancer/open-firewall-rule-to-public-service-to-internet)

[5 MONITOR TRAFFIC ANALYTICS IN FPT HI GIO CLOUD UI](https://docs.higiocloud.vn/network/3.-load-balancer/monitor-traffic-analytics)