GSLB
(Global Server Load Balancing)

DNS-based Load Balancing for Reliable Network Traffic

GSLB (Global Server Load Balancing) service automatically distributes network traffic to neighboring regions globally based on DNS in the case of a traffic spike in a certain region. For failure on a certain server, the network traffic load is balanced to normal resources to provide reliable service continuation.

Overview

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Service Architecture

  • Internet → DNS Request → DNS → Domain Registration/Delegation → GSLB → Primary (Active) → (A data center, B data center) Health Check → Security Group → Security Group : Subnet - VM, VM ... / Security Group : Subnet - VM, VM ... → A Data center
  • Internet → DNS Request → DNS → Domain Registration/Delegation → GSLB → Secondary (Inactive) → (A data center, B data center) Health Check → Security Group → Security Group : Subnet - VM, VM ... / Security Group : Subnet - VM, VM ... → B Data center

Key Features

  • GSLB creation/management

    - Register resource and port data
    - Multiple resources may be registered in one GSLB

  • Distribution algorithm selection

    - Round Trip Time : Distribute traffic based on the location of resources
    - Ratio : Distribute traffic by resource according to the user input. Failover is possible for some input

  • Health check setting

    - Interval, service timeout, and probe timeout setting
    - Protocol setting (ICMP, TCP, HTTP, HTTPS) and service port setting
    - DB health check based on DB checkup scripts (using Ishell function)

Pricing

    • Billing
    • Domain : Time of domain usage set on GSLB
    • Health check resources : Time of lower resource usage with health check setting
    • Metering
    • Hourly value of active status of health check resources
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