Elastic Load Balance


Elastic Load Balance (ELB) automatically distributes incoming traffic across multiple servers to balance their workloads, increasing service capabilities and fault tolerance of your applications.

High Availability

ELB is deployed in cluster mode and ensures that your services are uninterrupted. If servers are unhealthy, ELB automatically routes traffic to healthy servers.

Scalability and Elasticity

ELB makes sure that your applications always have enough capacity for varying levels of workloads. It works with Auto Scaling to flexibly adjust the number of servers and intelligently distribute incoming traffic across servers.

Improved Performance

ELB can establish up to 100 million concurrent connections and meet your requirements for handling huge numbers of concurrent requests.

Easy to Use

A diverse set of protocols and algorithms enable you to configure traffic routing policies to suit your needs while keeping deployments simple.


Load Balancing

Evenly distributes incoming traffic across multiple backend servers, preventing overloading of any single server and ensuring efficient resource utilization.


Dynamically adjusts load distribution based on real-time traffic patterns, allowing your applications to scale seamlessly as traffic increases without performance degradation.

Health Checks

Performs regular health checks on backend servers to ensure their availability and responsiveness. Unhealthy servers are automatically removed from the load balancing rotation to maintain optimal performance.

Session Persistence

Supports session persistence, ensuring that user sessions are maintained with the same backend server for consistent application experience and seamless user interactions.

High Availability

Ensures high availability by automatically redirecting traffic to healthy backend servers in case of server failures or unavailability.

Multiple Protocols

Supports multi-protocol load balancing, allowing you to efficiently distribute traffic across backend servers that use different protocols. Whether your applications use TCP, UDP, HTTP, or HTTPS.

Use Cases

Technical Documentation

ELB User Guide

This document describes basic concepts, functions, key terms, and FAQs of the Cloud Backup and Recovery (CBR) service and provides instructions for quickly creating backups and....

OBS API Reference

This document describes the Representational State Transfer (REST) application programming interfaces (APIs) supported by Object Storage Service, including request and response..

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