Service Overview
GSLB (Global Server Load Balancing) automatically distributes network traffic to an available adjacent region based on DNS when traffic increases in a specific global region. In the event of a failure on a specific server, the service can continue stably by load balancing network traffic to available new resources.
Features
- Stable Service Provision: Through the health check function, which checks the normal operation of connected resources, if a failure occurs in a specific server, the corresponding resource is immediately failed over and removed from the domain response, thereby diverting traffic to other resources to provide stable services.
- Service Port Easy Setup: You can easily create and manage GSLB and set up/service ports through the web-based console. For L4 unit load balancing, multiple port settings are possible (e.g., 80, 443, 8080-8090), and you can apply and manage multiple load balancing rules simultaneously.
- Efficient Cost Management: The cost is determined by the number of configured domains, the number of added Health Check resources, and the number of queries, so the billing method is applied in a granular manner, allowing for efficient cost management.
Service Composition Diagram
Provided Features
GSLB service provides the following features.
- GSLB Creation/Management: You can register multiple resources to a single GSLB.
- Distributed Algorithm Selection: Provides Ratio method, which distributes traffic in proportion to the weight of the connection target, and Round Robin method, which distributes traffic evenly in a circular manner.
- Health Check 설정: You can set the check cycle (Interval), service down detection time (Timeout), response wait time (Probe Timeout), protocol (ICMP, TCP, HTTP, HTTPS), and service port.
Constraints
The constraints of the GSLB service are as follows.
| Division | Description |
|---|---|
| Maximum number of domains that can be created per Account | 20 |
| Maximum connectable resources per domain | 8 |
Table. GSLB Restrictions
Note
- For GSLB to monitor the connection target, an allow rule must be added to the Firewall and Security Group of the connection target resource.
Regional Provision Status
GSLB service can be provided in the following environment.
| Region | Availability |
|---|---|
| Western Korea(kr-west1) | Provided |
| Korean East(kr-east1) | Provided |
| South Korea 1(kr-south1) | Not provided |
| South Korea southern region 2(kr-south2) | Not provided |
| South Korea southern region 3(kr-south3) | Not provided |
Table. GSLB Region-Based Provision Status
Preceding Service
The GSLB service has no preceding service.