The patent's inventors are Anderson, Thomas E. (
This patent was filed on
From the background information supplied by the inventors, news correspondents obtained the following quote: "The present invention relates to the field of networking. More specifically, the present invention relates to the detection of network misuses, such as denial-of-service attacks.
"With advances in integrated circuit, microprocessor, networking and communication technologies, an increasing number of devices, in particular, digital computing devices, are being networked together. Devices are often first coupled to a local area network, such as an Ethernet based office/home network. In turn, the local area networks are interconnected together through wide area networks, such as
"As a result of this trend of increased connectivity, an increasing number of applications that are network dependent are being deployed. Examples of these network dependent applications include but are not limited to, email, net based telephony, world wide web and various types of e-commerce. For these applications, success inherently means high volume of network traffic for their implementing servers. To ensure continuing success, quality of service through orderly and efficient handling of the large volume of network traffic has become of paramount importance. Various subject matters, such as scalability, distributive deployment and caching of contents as well as preventing network misuse have become of great interest to the artesian."
Supplementing the background information on this patent, VerticalNews reporters also obtained the inventors' summary information for this patent: "An apparatus is equipped to receive network traffic data relevant for network traffic routed over a network link. Selected numbers of analyses are performed to determine whether the network link is being misused. The analyses include but are not limited to analyses to determine whether the network traffic routed are inconsistent with an expected traffic pattern, whether unallocated source addresses are present, whether source addresses exhibit an uncharacteristic even distribution pattern, whether a server is uncharacteristically excessive in responding to the same source address, whether normal bursty behavior is absent from the traffic, whether a ratio of packets in one direction to packets in another direction is out of balance, whether a ratio of packets of one type to packets of another type is out of balance, and whether a server is uncharacteristically excessive in responding with error responses.
"In one embodiment, network traffic data are collected for network traffic routed over the related network links as well as the network link of interest. In one embodiment, distributed sensors are employed to collect and provide the network traffic data. The distributed sensors are selectively activated/deactivated based on the results of the analyses. In one embodiment, in like manner, routing devices are selectively regulated to regulate the network traffic being routed over the network link. In one embodiment, the regulations and de-regulations are administered via the corresponding sensors."
For the URL and additional information on this patent, see: Anderson, Thomas E.; Wetherall, David J.; Savage, Stefan R.. Detecting Network Misuse. U.S. Patent Number 8509086, filed
Keywords for this news article include: Area Network,
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