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The Packeteer, Inc. patent solves the following problem:
Enterprises have become more dependent on computer network infrastructure to provide services and fulfill the mission-critical tasks. In fact, the performance, security, and efficiency of the network infrastructure has become critical as businesses increase their confidence in the distributed environment Computing and wide area computer network. In the end, a variety of network devices which provide data gathering, reporting, and / or operation functions, such as firewalls, gates, packet capture devices, bandwidth management devices, application traffic monitoring devices, and the like. For example, the TCP / IP protocol suite, widely implemented throughout the world, throughout the data communication network environment called the Internet and the many local and wide area network, removing any clear supervisory function over the rate of transportation data on the various devices that make up the network. While there are certain perceived advantages, this behavior has an effect on very juxtaposing high-speed packages and very low-speed package of potential conflict and a certain lack. Some loading conditions degrade performance of networked applications and even cause weakness that can lead to overloads that stop data transfer temporarily. In response, some mechanism for data flow rate control developed to provide a way to control and optimize efficiency in data transfer as Welt as allocate available bandwidth among a variety of business functionalities. For example, in US Pat. No. 6,038,216 discloses a method for clear data rate control in a packet-based network environment without data rate management. Data rate control to directly moderate the rate of data transmission from a shipping company, resulting in just-in-time data transmission to control inbound traffic and to reduce the deficits associated with dropped packages. Bandwidth management device allows for clear data rate control for flows associated with a particular traffic classification. For example, in US Pat. No. 6,412,000, above, known automatic classification of network traffic for use in connection with the bandwidth allocation mechanism. US Pat. No. 6,046,980 discloses systems and methods allow for layer control bandwidth usage using package-based network computer. For example, the bandwidth management device allows network administrators to specify policies work to prevent and / or prioritize the bandwidth allocated to individual data flows according to traffic classifications. Furthermore, network security is another concern, as the detection of computer viruses, as well as to prevent Denial-of-Service (DoS) attack, or unauthorized access to, business network. So, firewalls and other network devices are deployed at the edge of the network to filter packages and do various operations in response to a security threat. Moreover, packet capture and other network data gathering devices are often deployed along, as well as other strategic points in a network to allow network administrators to monitor network conditions.
Our analysis of this patent is as follows:
Packeteer, Inc.’s patent US 7376080 B1 deals with Packet load shedding.
Methods, devices and systems geared to the Enhanced packet load shedding mechanism implemented in various network devices. In one implementation, the present invention enables a choice of load shedding mechanism wise cast package to allow or facilitate access to management during the DoS attacks or other incidents high traffic. In one implementation, the present invention is directed to a chosen load shedding mechanism, while load-shedding needed to allow a network device to operate properly, do not try to control traffic flows, allowing for other processing process, classify, diagnose and / or monitor network traffic during periods number high traffic. In another implementation, the present invention provides a package load shedding mechanism that reduces the consumption of system resources during the period the number of high traffic network.
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