Product Advantages
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Robust Performance
ELB can establish up to 100 million concurrent connections and meet your requirements for handling huge numbers of concurrent requests.
ELB can establish up to 100 million concurrent connections and meet your requirements for handling huge numbers of concurrent requests.
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High Scalability
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.
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.
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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.
A diverse set of protocols and algorithms enable you to configure traffic routing policies to suit your needs while keeping deployments simple.
Application Scenarios
High Traffic Websites
ELB intelligently distributes traffic to ensure smooth running of applications, making it a good choice for websites with an extremely large number of simultaneous requests.
Advantages
Related Services
Functions
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Multiple Protocols
Multiple protocols are supported at Layer 4 and Layer 7, facilitating diverse application scenarios.
Multiple protocols are supported at Layer 4 and Layer 7, facilitating diverse application scenarios.
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High Availability
A variety of measures ensure high service availability and quality.
A variety of measures ensure high service availability and quality.
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Layer 4Layer 4
TCP and UDP are used to handle services with a large number of access requests, or those require high performance.
TCP and UDP are used to handle services with a large number of access requests, or those require high performance.
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Layer 7Layer 7
Both HTTP and HTTPS are supported. Multiple encryption protocols and cipher suites are available for HTTPS to ensure service flexibility and security.
Both HTTP and HTTPS are supported. Multiple encryption protocols and cipher suites are available for HTTPS to ensure service flexibility and security.
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Health CheckHealth Check
Server health status is regularly monitored and traffic is distributed only to healthy servers, ensuring service continuity.
Server health status is regularly monitored and traffic is distributed only to healthy servers, ensuring service continuity.
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Cross-AZ Load BalancingCross-AZ Load Balancing
ELB distributes traffic across availability zones and ensures service continuity even if an availability zone fails because of a disaster.
ELB distributes traffic across availability zones and ensures service continuity even if an availability zone fails because of a disaster.
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Sticky Sessions
Requests from a client for a particular session are forwarded to the same backend server to ensure that the client has continuous access.
Requests from a client for a particular session are forwarded to the same backend server to ensure that the client has continuous access.
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Elastic Scaling
ELB automatically scales its request handling capacity and combines with Auto Scaling to improve service flexibility and reliability.
ELB automatically scales its request handling capacity and combines with Auto Scaling to improve service flexibility and reliability.
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Layer 4Layer 4
Source IP addresses are used to maintain sessions at Layer 4.
Source IP addresses are used to maintain sessions at Layer 4.
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Layer 7Layer 7
Cookies are used to maintain sessions at Layer 7.
Cookies are used to maintain sessions at Layer 7.
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Seamless IntegrationSeamless Integration
Auto Scaling automatically adjusts the number of servers as necessary to cope with varying levels of workload.
Auto Scaling automatically adjusts the number of servers as necessary to cope with varying levels of workload.
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Automatic ExpansionAutomatic Expansion
ELB automatically scales to the incoming traffic to ensure a positive user experience.
ELB automatically scales to the incoming traffic to ensure a positive user experience.