In recent years, Internet downloads, P2P, online video and other new emerging Internet applications, providing a great convenience to users, but also to the entire operation of the Internet created a heavy burden.For enterprise users, a variety of key business enterprises (such as ERP, CRM, OA systems, video conferencing systems, etc.) on a higher bandwidth requirements; and Web browsing, send and receive private E-mail, P2P downloads, the networkgames, instant messaging and online shopping and other work-related applications are increasingly flooding.Company limited network bandwidth, are P2P download, Internet TV, occupies a very bandwidth-consuming applications, not only a great waste of valuable bandwidth resources, but also seriously affected the normal operation of critical business enterprises.
As companies become increasingly dependent on the network operating deep impact network efficiency is increasingly becoming an important factor in the competitiveness of enterprises, poor control of application traffic and improve bandwidth utilization is becoming increasingly urgent, flow control has become an indispensable network constructiona ring.Early popular traffic through the routers, and management approach, significant increase in export flows in the network may result in device performance today, stretched, even when serious compromise network security; and professional flow control devices to avoid the above disadvantages, to achieve flexible and finetraffic management.Therefore, how to choose the correct flow control devices, has become a required course for one of the network managers.
Senior network security and Internet management experts, network director of health technology products that Mr. Song Jiang, optional flow control products, to follow the following three rules:
"Recognize the clear" rule - flow control equipment to intelligently identify the user, and identifies the network application
Internet traffic from the "people", therefore, to achieve precise control of flow, flow control equipment must first accurately identify the user.For most companies, prior to the deployment of traffic control equipment, companies may have established a variety of identification systems (such as billing systems, safety management systems, etc.), the new smart flow control products into the user identification for onlycompatible with the existing system can do a good job, so enhance efficiency, but also easy to implement user-friendly operation and management.
On the other hand, now occupy the largest export bandwidth is usually BT, eMule, Thunder and other network applications, a wide range of these applications, many different communication protocols, identification and management is very difficult; the same time, the network, there are still numerousencryption protocol, these are all intelligent flow control device of a higher ability to identify requirements - not only to be able to identify online games, VoIP, instant messaging, P2P downloads, Internet TV, stock software, office automation, hundreds of traditional networkApplication Protocol; but also the timely identification and accurate control of encrypted transmission, dynamic negotiation port, protocol and port to borrow conventional network applications, such as Thunder, BT, IM transmission.
"Control for sure" rule - flow control equipment to achieve the intelligent scheduling of network traffic to help users conduct a comprehensive traffic management
On the basis of the accurate identification, intelligent flow control system to achieve a comprehensive traffic management, in general you can use "limit", "limit" and "security" three words to summarize.
First, work-related and affect efficiency and even safety risks of network applications (such as online video, online games, online chat), the system to achieve the full limits, to help users reduce bandwidth abuse, optimize bandwidth, reduce operating costs,protection efficiency, to enhance the bandwidth utilization value.
Second, for certain specific applications or a specific user application, the system to achieve the limit, limit its flow within a certain range to prevent the limited bandwidth resources by a few users or non-critical applications unreasonably long to seize; or system throughSet a user or a network application in a certain period of time traffic quotas, to achieve non-critical operations, especially the poor application of effective control.
Finally, for a variety of key business enterprises (such as ERP, CRM, OA systems, video conferencing systems, etc.), the system to make normal use of the assessment and the corresponding bandwidth protection, and data flow of the "load shifting", inhibitburst traffic, multiplexing free bandwidth for data transmission to the smooth and orderly.
"Kangde Zhu" rule - flow control equipment to be able to cope with large traffic, the application of complex network environment
Smart flow control device carries the user all the Internet traffic, its performance will directly affect the performance of the network to the user.Moreover, with the expansion of users, user groups, the performance of flow control equipment, a higher requirement, which means that flow control device performance is bound to "excellence", "Times."
In general, the flow control device performance mainly reflected in the "high flow", "High concurrency" in these two areas, specifically including the "throughput", "number of concurrent connections", "New Connections" and other indicators.Tuntu Liang larger, traffic control equipment, data forwarding capacity of the stronger, faster speeds experienced by users; greater the number of concurrent connections, the unit time to maintain the higher the number of connections, the device can manage the greater the number of users; Xinjianthe greater number of connections, the number of connections per unit time added more equipment to the network burst traffic handling capacity of the stronger.
Meanwhile, in the hardware performance, intelligent flow control products should also be using leading technology, comprehensive protection for equipment performance.For example, nowadays the mainstream of flow control devices to achieve the "application layer Gigabit wire-speed" to ensure that high flow in Gigabit network environment remains high.As another example, high-quality flow control products with industry-leading DPI (deep packet inspection), DFI (dynamic data flow testing), and other technology, network application protocols on a variety of precise identification.In addition, some smart flow control products, has applied a "multi-core optimizing parallel" patent technology, the system load balancing between processors in multi-core, stimulate and improve the computing performance of multicore processors, support system to efficiently handle a variety of data traffic.
Performance of two attention to points outside the
In the "know the Qing", "control a prospective", "Kangde Zhu" three principles, the net Kang Song Qiang, director of technology products also pointed out that intelligent flow control system to buy the following two points to note:
On the one hand, have given priority to buy localization advantages, ease of operation, human interface devices.Only for the domestic habits of the network environment and the use and development of tailor-optimized products in order more in line with China's domestic network users and the application status and use.At the same time, a good flow control products provide user-friendly interface but also to the network management more convenient, efficient way for system configuration and management.
On the other hand, buy smart flow control device also concerned about the service, concerned about the continuing escalation of subsequent knowledge.This is easy to understand, after all, flow control devices like televisions, refrigerators, users can buy a home plug in the normal use of electricity, only bad need of repair only.Flow control products require high-quality service support.For example, we often see flashget, Thunder, MSN, QQ and other new versions of software, flow control, manufacturers must track this change to provide different versions of these mainstream applications, and version updates the rapid follow-up.Only in this way, flow control products to give users the value of sustained and effective.