The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 01, 2011
Filed:
Mar. 28, 2003
Gaeil Ahn, Daejeon, KR;
Ki-young Kim, Daejeon, KR;
Jong Soo Jang, Daejeon, KR;
Electronics and Telecommunications Research Institute, Daejeon, KR;
Abstract
An apparatus for protecting legitimate traffic from DoS and DDoS attacks has a high-priority () and a low-priority () queue. Besides, a queue information table () has STT (Source-based Traffic Trunk) service queue information of a specific packet. A queue coordinator () updates the queue information table () based on a load of a provided STT and a load of the high-priority queue (). A packet classifier () receives a packet from the network access unit (), investigates an STT service queue of the packet from the queue information table (), selectively transfers the packet to the high-priority () or the low-priority () queue and provides information on the packet to the queue coordinator (). A buffer () buffers outputs of the high-priority () and the low-priority () queue and provides outputs to the network () to be protected.