First, Product Overview
Network guard TopApp load balancing system is a combination of intelligent bandwidth control functions of link and server load balancing products. By optimizing the scheduling of the network egress link and server resources, TopApp load balancing system for large-scale application deployment easy, operation effect and at the same time to the most stable, the maximum utilization of resources, the best application performance and user experience. A large number of enterprises and institutions through the TopApp load balancing system successfully realized the application deployment, to meet the needs of the development of information technology, and greatly improved work efficiency.
Second, core technology
Link load balancing technology
TopApp load balancing system including the use of policy routing (source address or destination address based on Round (Robin), Weighted Round Robin (polling), weighted round robin), congestion equalization, equalization algorithm to realize the backup outflow and inflow (Inbound & Outbound) multi chain road traffic load balancing. For the intelligent management of the outgoing flow, we can realize the equilibrium of the outflow and traffic flow under the multi link, and also select the outbound link according to the enterprise specific strategy, so as to improve the utilization of the link. For the inflow load balancing, the intelligent DNS equilibrium algorithm is adopted to realize the equilibrium of the inbound traffic flow on different ISP links.
Server load balancing technology
In terms of server load balancing, the TopApp load balancing system uses predictor technology and advanced configurable application combinations to achieve desired traffic distribution results. Predictor technology is a lower layer technique that uses statistical distribution methods to partition traffic data to the server. Examples include: the cycle turns in the same way, a logical group server assigned sequentially connected server; least connection number; weighted distribution, the user specified percentage for the weighted single server; the fastest response time; and the combination of technology such as the combination of least connection and response time etc..
Bandwidth Guarantee Technology
Topsec precise control technology in bandwidth without any loss of bandwidth under the condition of accurate control on the direction of the download bandwidth usage and realize dynamic bandwidth allocation. Topsec precise bandwidth control technology not only can effectively control the TCP, based on the use of UDP in the transmission of the international and Chinese popular multimedia and P2P software, joined the download control mechanism of UDP, all traffic to download the direction control generally effective so its application delivery device bandwidth.
Third, product features
Two in one load balancing
Integration of high performance link load balancing and server load balancing ensures application data to obtain the best transmission path in the complex network. Perfect link, application service health check mechanism, diagnose the link and server that can not work normally or load too much in time. According to the application and the health status of the link, it can intelligently adjust the distribution of traffic between the multi link and multi server, and automatically switch, so as to enhance the availability of the network and application.
Precision traffic control to boost bandwidth value
The innovation of the end-to-end bandwidth control precision and equalization technology to avoid the wide area network downlink bandwidth of the traditional queue mechanism caused by waste, realize the priority management, bandwidth, bandwidth and bandwidth guarantee of fair use, enhance the bandwidth value.。
High availability assurance
Realize the high availability deployment of multi machine cluster and Active-Standby and Active-Acitive mode, maximize the application running time, avoid the impact of equipment or network failure on the business.
Enhanced security protection
State detection firewall to achieve high performance access control, two-way NAT supports many to one, one to many and the ways of address translation, automatic scanning and IP/MAC address binding, effective against dozens of network attacks.
Easy to use and deploy
One arm and two arm optional access modes reduce the user network structure to the greatest extent. The adaptive management of load balancing algorithm, the list of Chinese ISP addresses, the automatic notification of server faults and the automatic restoration of application faults have reduced the complexity of user configuration management.
