Abstract:
Disclosed is a method of handing a fault in a software defined networking (SDN) network. First, information about an indirect port switched when a fault occurs in a flow table is set. When a fault is sensed, after information about an indirect port corresponding to the port in which the fault has occurred is obtained, the port in which the fault has occurred is switched into the obtained indirect port based on the obtained indirect port information. Thus, when a fault occurs, the fault can be rapidly handled so that the continuity of traffic transmission can be guaranteed.
Abstract:
PURPOSE: A cell scheduling method guaranteeing the priority of a switch having an input queue is provided to extend the range of application targets. CONSTITUTION: Information about cells with high priority is provided in advance. A generalized diagonal line, which is composed of processing elements connected along a column and a row, is generated. A transfer matrix is generated and updated by considering the priority provided in advance for the processing elements forming the generated diagonal line. Cells in the transfer matrix are transmitted.
Abstract:
A mobile RFID(Radio Frequency IDentification) service agent device for vicariously processing RFID information of a mobile terminal and a method thereof are provided to reduce power consumption and a communication charge by minimizing network communication/operation of the mobile terminal, as a mobile RFID service agent vicariously processes the operation needed for using an RFID network service. A command interpreter(420) extracts a command and a parameter by parsing a command message received from the mobile terminal. A task processor(440) extracts and performs a related task module from a record corresponding to a task name which is one of the parameter in case that the extracted command is 'RunTask'. A response transmitter(470) transmits a performance result message of the task processor to the mobile terminal. The task processor registers the record corresponding to the task name in the case that the extracted command is 'AddTask', and updates or deletes the record corresponding to the task name in the case that the extracted command is 'UpdateTask' or 'DeleteTask'.
Abstract:
A device and a method for processing information of an electronic tag based on a wireless Internet platform are provided to process RFID(Radio Frequency IDentification) tag information in the wireless Internet platform by installing an RFID reader to a mobile terminal and develop a mobile terminal RFID application program by utilizing the RFID tag information. The RFID reader(110) recognizes code information recorded in the RFID tag. The wireless Internet platform(120) operates/controls terminal hardware including the RFID reader and refines the RFID information collected by the RFID reader. A terminal RFID application program(130) provides an application service to a terminal user by utilizing the RFID tag information. The wireless Internet platform includes basic terminal software(121) for controlling the terminal hardware including the RFID reader, a terminal software abstracting layer(122), an application API(Application Program Interface) layer(124), and a wireless Internet platform engine(123) performing/controlling a command of the RFID reader based on a function provided from the terminal software abstracting layer, and collecting and refining the RFID tag information received from the RFID reader.
Abstract translation:提供了一种基于无线互联网平台的电子标签信息处理装置和方法,用于通过在移动终端上安装RFID阅读器来处理无线互联网平台中的RFID(Radio Frequency IDentification,射频识别)标签信息,开发移动终端RFID 应用程序通过利用RFID标签信息。 RFID阅读器(110)识别记录在RFID标签中的代码信息。 无线互联网平台(120)操作/控制包括RFID读取器的终端硬件并且精炼由RFID读取器收集的RFID信息。 终端RFID应用程序(130)通过利用RFID标签信息向终端用户提供应用服务。 无线互联网平台包括用于控制包括RFID读取器的终端硬件的基本终端软件(121),终端软件抽象层(122),应用程序API(应用程序接口)层(124)以及无线互联网平台引擎 123)基于从终端软件抽象层提供的功能来执行/控制RFID读取器的命令,并且收集和精炼从RFID读取器接收的RFID标签信息。
Abstract:
본 발명은 고속의 인터넷 회선으로부터 패킷을 수집하기 위해서 지금까지 분석 소프트웨어에서 수행되던 샘플링 기능과 시그너쳐 검색 기능을 하드웨어로 구현한 IP 패킷 수집 장치 및 그 방법에 관한 것이다. 본 발명에 따르면, 지금까지 분석 소프트웨어에서 수행되던 샘플링 기능과 시그너쳐 검색 기능을 FPGA(Field Programmable Gate Array) 하드웨어로 구현함으로써 고속의 인터넷 회선에 대한 트래픽 수집에 요구되는 많은 컴퓨팅 자원을 줄일 수 있으며 보다 정확한 실시간 분석이 가능한 모니터링 시스템을 효율적으로 구축할 수 있다. IP 패킷 수집, 플로우 샘플링, 시그너쳐 검색, 모니터링, FPGA
Abstract:
본 발명은 인터넷 망에 흐르는 트래픽의 특성에 부합하는 애플리케이션 플로우 패킷 및 통계 정보를 생성하기 위한 플로우-기반 패킷 생성 장치 및 방법에 관한 것이다. 본 발명에 따른 플로우-기반 패킷 생성 장치는, 동작 매개변수 및 애플리케이션 특성 정보를 정의하고 처리하는 동작 매개변수 및 애플리케이션 특성 정보 발생부; 동작 매개변수와 애플리케이션 특성 정보 발생부로부터 제공되는 동작 매개변수와 애플리케이션 특성 정보를 파싱(Parsing)하는 구문 분석부; 동작 매개변수 및 애플리케이션 특성 정보를 바탕으로, 메타 플로우 데이터(Meta Flow Data)를 정의하고 처리하는 메타 플로우 생성부; 메타 플로우 데이터에 따라 메타 패킷 데이터(Meta Packet Data)를 작성하여 전달하는 메타 패킷 데이터 생성부; 및 메타 패킷 데이터에 따라 패킷을 생성하여 임시 버퍼에 저장하는 패킷 생성부를 포함한다. 본 발명에 따르면, 플로우-기반 인터넷 트래픽 측정 시스템, 인터넷 애플리케이션 분석 시스템 및 침입 감지 시스템 등의 기능 및 성능 검사를 위한 시험용 트래픽 생성에 유용하게 사용될 수 있다. 패킷 생성, 플로우-기반, 인터넷 트래픽, 애플리케이션 패턴, 메타 플로우
Abstract:
PURPOSE: A device for collecting IP packets including header information of a link layer is provided to define a common part for analysis, and to realize the defined common part in hardware system, then to make analysis software for configuring a monitoring system lighter, thereby constructing a network monitoring system which can measure in real time. CONSTITUTION: A network interface connection port(200) receives bit stream-type traffic. A PPS(Precise Positioning Service) port(206) generates a precise time stamp. A framer(201) makes the traffic inputted through the network interface connection port(200) into a PDU packet of a link layer. An FPGA(Field Programmable Gate Array)(202) records IP length and IP packets collected according to the designated length in an FIFO buffer(207) by detecting the generated time stamp information and the header of an IP frame and the length of the IP frame, and performs a designated filtering function. A booter(210) performs an initialization process. FIFO buffers(203,204) supply buffer functions for transmitting data between the FPGA(202) and a MPC(Micro Processor Controller)(205).
Abstract:
PURPOSE: A configuration information data structure for remotely controlling a heterogeneous MPLS(Multi Protocol Label Switching) network equipment, a management apparatus therefor and a management method therefor are provided to express MPLS configuration information of the MPLS network equipment as various information schemata and offer an information model stored and managed in a storing medium capable of being read by a computer. CONSTITUTION: An FEC(Forward Error Correction) class(504) is used for discriminating IP(Internet Protocol) packets transmitted through a specific LSP(Label Switching Path). An RSVP(Resource Reservation Protocol) traffic profile class(505) stores bandwidth resource information assigned in the LSP. A traffic trunk class(506) has a set of LSP tunnels. An LSP class(508) stores attribute information necessary for setting the LSP. An LSP tunnel class(507) has a set of a main LSP and backup LSPs. A path class(509) stores path information designated by a network manager for setting the LSP. A setup path class(510) stores path information automatically set by the network manager or a network equipment. An interface class(516) stores components of a network.
Abstract:
PURPOSE: A traffic measurement system and a traffic analyzing method are provided to offer a detailed traffic analysis result by measuring traffics from multiple points and correlatively analyzing the measured traffics. CONSTITUTION: A measuring unit(10) collects packets flowing on the Internet line, extracts and processes information required for traffic analysis, and provides it to an analyzing server(20). A packet collector(100) collects information on packets flowing on the Internet line, records accurate time received from a visual receiver(40) by each packet, and provides it to a flow generator(110). The flow generator(110) generates packets having the same address, the same protocol and the same port number as one flow. A transmitter(130) transmits information stored in a storing unit(120) to the analyzing server(20). The analyzing server(20) classifies traffics in detail, obtains traffic statistics, and generates a traffic report on a line. A data receiver(210) receives collected information from multiple measuring units(10) and provides it to a traffic analyzer(200). The traffic analyzer(200) analyzes the information and stores a result in a data storing unit(230) or provides it to a report output unit(220). The report output unit(220) processes the data to a report form and stores it in the data storing unit(230). A user interface(240) displays the report and various analysis data for a user.
Abstract:
PURPOSE: A system and a method for measuring network performance are provided to simultaneously measure the performance of each section using a passive measuring device when a test packet generated from an active measuring device moves from end to end. CONSTITUTION: A system for measuring network performance is comprised of a server(101), active measuring devices(102,105), and passive measuring devices(103,104). The server(101) creates a measurement schedule and transmits it to each measuring device(102-105). Also the server(101) receives measured results from the measuring devices(102-105), analyzes them, and outputs analyzed results. Each active measuring device(102,105) generates a test packet according to the created measurement schedule and transmits it to another active measuring device. Also each active measuring device(102,105) receives a test packet from another active measuring device(102,105), calculates network performance, and transmits a measured result to the server(101). Each passive measuring device(103,104) monitors and collects test packets according to the measurement schedule and transmits a measured result to the server(101).