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Application Load Balance System

The application security delivery system is built with high scalability, high reliability, and high maintenance.

Application Load Balance System Overview

Topsec Application Load Balance System (TopApp) can provide users with a full set of solutions for data centers, including link load balancing and server load balancing for a single data center, and global load balancing for multiple data centers. It has a wealth of load balancing methods, which are applicable to service load balancing requirements in various scenarios. It can accelerate application processing through technologies such as compression, caching, SSL offloading, and HTTP optimization. It provides security protection such as a full range of anti-DDoS attacks and web application firewall for application security. It has rich statistics, and customized reports so that users can understand the application operation status in real time.

Activity & Announcement
Advantages
Three-in-one load balancing

The system includes the link load balancing, server load balancing, and global load balancing functions, integrates rich WAN optimization functions and complete security modules, and also fully supports IPv4/IPv6 access and dual-stack deployment.

All-round security modules

The system has comprehensive security module, comprehensive model performance coverage, rich optimization module, and free open license for all modules with no secondary upgrade fees.

Wide application scenarios

Various user scenarios with 1.5–480 GB throughput are covered. A software version of load SAD for cloud scenarios is also included.

Solving the "skylight" problem for IPv6 transformation

The system uses the method of changing the URL path or domain name to proxy the external link to solve the "skylight" problem caused by IPv6 upgrade, so that the network transformation can be smoothly transitioned.

Application
Scenario

The system provides the two-in-one outbound and inbound link load balancing function. There is no need to purchase a license separately, and no additional investment is required. In addition, the system has additional security functions such as DNS protection, firewall, vulnerability scanning, and anti-DDoS to enhance its security.

Issues Resolved
  • Has the built-in global IP address library that enables precise selection of the best link for the user.
  • Uses smart DNS technology to bind multiple public IP addresses to one domain name.
  • Completely solves the problem of slow access by users cross-operation or poor quality of a certain link of users.
  • Provides link load strategies through technologies such as link busy control, DNS transparent proxy, and numerous allocation algorithms.
  • Provides a real-time health check mechanism to monitor the link operation status, so that redundancy is formed between links to ensure stable user access.
  • Improves bandwidth resource utilization and reduces bandwidth investment costs.
Scenario

TopApp can select the server node with the best performance for users according to the preset policies, and can make full use of the resources of each server, speeding up user access and ensuring user access experience. Implements redundancy between servers to ensure the stability of the application system.

Issues Resolve
  • Performs server health check, that is, checking whether the server can provide normal services for users.
  • Eliminates the downtime server from the list of available servers in the event of real server downtime to ensure that user requests are completed properly.
  • Support bypass, tandem, stacking, HA, and other deployment methods to meet the service requirements of users in different scenarios.
Scenario

The global load balancing solution can help customers obtain higher availability, better performance, and more economical and impeccable security by deploying the same service content across multiple data centers in different physical locations for faster response time for users worldwide.

Issues Resolve
  • Functions as a logical entrance point for all data centers that provide the same service by means of a unique IP address or domain name.
  • Has flexible traffic allocation algorithms and mechanisms to ensure that users always have access to the content of the data center that can provide them with the best service.
  • Detects the health status of each data center or the servers in the data center in a timely manner. When a data center fails, it ensures that subsequent user access is directed to data center that is running properly.
  • Provides a variety of session-holding mechanisms for session-based services to ensure the continuity of users in processing the services. It avoids allocating the service requests of the same session of the user to different data centers, causing access failure.
  • Has L4-L7 access control and anti-DoS/DDoS functions to provide an additional layer of security for the server.
  • Has good upgrade and scalability, and can adapt to specific and changing service requirements.
  • Effectively prevents attacks against DNS with the function of DNS protection.
Value to Customers
All-scenario load balancing

TopApp integrates server load balancing, link load balancing, and global load balancing to ensure an excellent transmission path for service data on complex networks. Multiple load balancing algorithms are derived in conjunction with scenarios to accurately share traffic across different links or servers for full utilization of resources.

IPv6 upgrade

TopApp can provide IPv6 transformation solutions to solve the problem of IPv4/IPv6 address non-interoperability. Based on programmable scripting technology, it can effectively solve the "skylight" problem and implement smooth transition for IPv4/IPv6 networks.

Boosted access speed

TopApp integrates a variety of network optimization acceleration technologies such as compression caching, single-sided acceleration, TCP connection multiplexing, database read/write separation, and SSL offloading, which can significantly boost user access speed.

Service security protection

TopApp inherits the security gene of the NGTOS platform and has complete security technology means, and integrates a series of security functions such as L4 to L7 access control, DDoS attack protection, web security protection, database security protection, and vulnerability scanning, providing customers with a security defense line close to applications.

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