Server Load Balancer (SLB) distributes network traffic across groups of backend servers to improve the service capability and application availability. It provides functions as a reverse proxy at Layer 7（ALB）and load balancing services at Layer 4 （CLB）.
High Performance and Elasticity Stable, Reliable, and Cloud-Native
Server Load Balancer (SLB) provides high-performance load balancing services. Classic Load Balancer (CLB) runs at Layer 4 and supports up to 100,000 QPS. The newly released Application Load Balancer (ALB) service is based on Alibaba Cloud Apsara Network 2.0 and supports up to 1,000,000 QPS.
The Server Load Balancer (SLB) instances feature high performance and support auto scaling. They can automatically adjust resources based on your business requirements to simplify O&M
Features
Multiple Protocols
Supports multiple protocols to meet your business requirements in various scenarios.
Multi-Level Disaster Recovery
Provides disaster recovery at multiple levels to ensure high availability.
Secure and Reliable
Provides built-in security capabilities (free of charge) to secure transmission and reduce costs.
Flexible Scheduling
Supports multiple scheduling algorithms and forwarding methods to improve the application deployment flexibility.
Flexible Management and Billing
Allows you to specify the instance type and billing method based on your business requirements. Alibaba Cloud also provides multiple methods to manage your Server Load Balancer (SLB) service.
