Maximization of network efficiency
through the automatic distribution of traffic

Load balancer

This feature automatically distributes inbound traffic to prevent traffic bottlenecks and to ensure efficient network operation.

  • Single Zone LB

    - This is a load balancer for distributing traffic within a single zone.
    - You can register two or more instances belonging to the zone in question as load balancing members.

  • Multi-Zone LB

    - This is a load balancer for distributing traffic between two or more zones within a multi-zone.
    - It provides DNS-based GSLB service, and a load balancer is created and operated in each zone.
    - Load balancing members can be registered in other zones using the cross-zone network.

* The multi-zone LB is provided to the R zone with priority.

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· Load balancer 1.0 (Single Zone LB)
Product Specification Hourly Rate Max. Number of Concurrent Connections TPS
Basic 2Core 2GB KRW 15 40,000 30,000
Standard 4Core 4GB KRW 30 80,000 50,000
Premium 4Core 8GB KRW 45 160,000 50,000
· Load balancer 2.0

Load Balancer 2.0 can create a single zone LB and multi-zone LB.

Product Specification Hourly Rate Max. Number of Concurrent Connections TPS Common
Single Zone LB 2Core 2GB
From 2 (default) to 4
KRW 30 80,000~160,000 60,000~120,000 -
Multi-Zone LB 2Core 2GB (in 2 zones)
From 2 (default) to 4
KRW 70 80,000~160,000 60,000~120,000 GSLB provided
Redundant configuration between zones
- Max. Number of Concurrent Connections: At least 20,000 per 1GB of memory
- TPS(transactions per second): Number of transactions that the system can handle per second
* For products with higher specifications, request a standalone load balancer service.

How to Use

1. Create a pool with the protocol and distribution method of the load balancer settings configured.
2. Create a VIP (virtual IP address) connected to a public IP address.
3. Register VMs to distribute the load according to the pool settings with the LB members.
4. Set the monitoring value for load balancer management.
5. Connect the VIP to the public IP address where the load balancer will be used, and the traffic coming into the public IP address in question will be distributed.


  • Distribution of traffic coming into a specific IP address
  • Ensuring stability by configuring redundancy (Active-Standby) with the application of failover
  • Can select the protocol and distribution method according to your needs
    • Types of Supported Protocols :
      - TCP, HTTP, HTTPS
    • Distribution Methods :
      - Round robin, a way of directing the same amount of requests to the designated servers sequentially
      - Source IP, a way of directing a specific IP request to a specific server
      - Least connection, a way of direct the request to the server receiving the least requests


  • Single-Zone LB
  • Multi-Zone LB

For inquiries regarding the Load balancer