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62.发明授权
公开(公告)号：KR101146139B1
公开(公告)日：2012-05-16
申请号：KR1020080131622
申请日：2008-12-22
Applicant: 한국전자통신연구원
IPC: H04L12/66 , H04L12/701
CPC classification number: H04W36/0011 , H04L12/4633 , H04L12/66
Abstract: A method for providing mobility of a mobile node in a packet transport network, and a packet transport network system are provided. The packet transport network system includes a plurality of gateway switches configured in a plurality of packet transport access networks to connect a packet transport core network and transmit/receive a packet to/from a certain terminal via a certain access switch. When the certain terminal moves, each gateway switch updates a tunnel mapping and management table according to the movement of the certain terminal, allocates a pre-set tunnel by using information included in the tunnel mapping and management table, and transmits/receives a packet to/from a counterpart terminal via the allocated tunnel. Thus, a packet loss and delay due to the influence of handover occurring when the mobile node moves between networks can be minimized and the handover procedure can be simplified.
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63.发明公开패킷 전송 속도를 개선한 ＭＰＬＳ 네트워크의 입구 노드및 출구 노드와, ＭＰＬＳ 네트워크 시스템의 패킷 전송속도 개선 방법 失效INGRESS节点和节点节点改进MPLS网络上的分组传输速率，改进MPLS网络系统上分组传输速率的方法
公开(公告)号：KR1020090054316A
公开(公告)日：2009-05-29
申请号：KR1020070121110
申请日：2007-11-26
Applicant: 한국전자통신연구원
IPC: H04L12/723 , H04L12/851 , H04L12/771 , H04L29/06
CPC classification number: H04L12/4645 , H04L45/50 , H04L47/2408 , H04L47/286
Abstract: 본 발명은 패킷 전송 속도를 개선한 MPLS 네트워크의 입구 노드 및 출구 노드와, MPLS 네트워크 시스템의 패킷 전송 속도 개선 방법에 관한 것으로, QoS(Quality of Service) 보장을 위한 MPLS 레이블을 패킷의 목적지 MAC 주소별로 할당하여 MPLS 네트워크에서 다양한 경로를 통해 패킷이 분산되어 전송되도록 함으로써 패킷 전송 속도를 개선할 수 있도록 한 것이다.
패킷, MPLS, 입구 노드, 출구 노드, MAC 주소-
公开(公告)号：KR1020090050933A
公开(公告)日：2009-05-20
申请号：KR1020080084750
申请日：2008-08-28
CPC classification number: H04L12/437 , H04L12/18 , H04L12/423 , H04L41/0659 , H04L41/26 , H04L45/22 , H04L45/28
Abstract: 이더넷 링 네트워크의 비환원 모드에서의 장애 복구 방법이 개시된다. 이더넷 링 네트워크에서 각 노드의 맥 주소를 기반으로 각 노드 사이의 링크 우선순위 값을 설정하거나 노드의 우선 순위를 설정하여, 그 우선순위 값을 기준으로 장애 복구 후 폐색 포트를 가지는 노드를 결정함으로써, 폐색 포트 선정의 분산이 가능하다.
Abstract translation: 公开了一种用于在以太网环形网络的未减少模式下进行故障转移的方法。 通过确定具有基于所述优先级值在故障转移之后的第一闭合端口的节点中设置基于每个节点的MAC地址或设置以太环网中的节点的优先级的每个节点之间的链路的优先级值， 可以分配被遮挡端口的选择。
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公开(公告)号：KR100858052B1
公开(公告)日：2008-09-10
申请号：KR1020060123988
申请日：2006-12-07
Applicant: 한국전자통신연구원
IPC: H04L12/28 , H04L12/771 , H04L29/02 , H04L12/56
Abstract: 본 발명은 이더넷 매체접근제어(MAC) 프레이머와 네트워크 프로세서(또는 전용 패킷 프로세서) 사이에 위치하여 다양한 형태의 이더넷 프레임에 대해 목적지 및 발신지 주소 필터링, 프레임의 완전성 검사를 독립적으로 수행함으로써, 고속처리가 요구되는 네트워크 통신 장비에서 이더넷 헤더 처리 기능을 수행하는 이더넷 헤더 처리 장치 및 그 방법에 관한 것으로, 매체접근제어 프레이머로부터 입력되는 이더넷 프레임을 수신하는 입력수단; 상기 입력수단에 의해 수신된 이더넷 프레임에 대해 프레임의 종류를 구분하고, 목적지와 발신지 주소를 추출하는 이더넷 헤더 분석수단; 상기 이더넷 헤더 분석수단에 의해 추출된 목적지 및 발신지 주소를 필터링하는 필터링수단; 상기 필터링수단으로부터 전달받은 이더넷 프레임에 대해 데이터의 완전성을 검사하는 프레임 체크 시퀀스 검사수단; 상기 프레임 체크 시퀀스 검사수단에 의한 검사 결과가 이상이 없는 경우 이더넷 헤더를 제거하는 이더넷 헤더 제거수단; 상기 이더넷 헤더 제거수단에 의해 헤더가 제거된 프레임을 입력받아 외부의 프로세서로 출력하는 출력수단; 및 상기 입력수단과, 상기 이더넷 헤더 분석수단과, 상기 필터링수단과, 상기 프레임 체크 시퀀스 검사수단과, 상기 이더넷 헤더 제거수단과, 상기 출력수단에 연결되어 레지스터 초기화 및 주소 필터링을 위한 목적지 주소 및 발신지 주소값을 상기 필터링수단의 해당 메모리에 프로그래밍하고 상태정보를 수집하여 상위 프로세서로 전달하는 제어수단을 포함한다.
이더넷, 프레임, 헤더, 처리, 프레이머, 필터, FCS, 검사-
Patent Agency Ranking
公开(公告)号：KR1020080053169A
公开(公告)日：2008-06-12
申请号：KR1020070089066
申请日：2007-09-03
Applicant: 한국전자통신연구원
CPC classification number: H04L41/06 , H04L2012/5625
Abstract: An apparatus for transmitting failure information between an Ethernet and an SDH network and a method therefor are provided to transmit OAM information to other networks using an existing MAC control frame in interfacing between an Ethernet and an SDH network when there is failure on the Ethernet or the SDH network, thereby operating and managing an EoS(Ethernet over SDH) network effectively. A frame transceiving unit(10) transceives an Ethernet frame through plural optical transceiving ports and detects the failure of a physical link. An MAC(Media Access Control) processing unit(20) reads the header information of the Ethernet frame received by the frame transceiving unit to detect an OAM(Operations, Administration and Maintenance) frame and status information by port, and generates an OAM frame using status information by port and transmits the generated OAM frame to the Ethernet through the frame transceiving unit. An SDH(Synchronous Digital Hierarchy) processing unit(30) receives status and failure information about the Ethernet to generate a corresponding SDH OAM frame. An output interface unit(40) receives the frame generated in the SDH processing unit and outputs the received frame to an SDH network. A signal processing unit(60) receives the failure information detected in the frame transceiving unit to generate a corresponding OAM signal, and transfers status and failure information on a network for generating the SDH OAM frame generation information from the OAM frame generated in the MAC processing unit to the SDH processing unit.
Abstract translation: 提供一种用于在以太网和SDH网络之间传送故障信息的装置及其方法，用于在以太网或以太网或以太网上发生故障时，使用现有的MAC控制帧在以太网和SDH网络之间进行接口传输OAM信息到其他网络 SDH网络，从而有效地运行和管理EOS（以太网SDH）网络。 帧收发单元（10）通过多个光收发端口收发以太网帧，并检测物理链路的故障。 MAC（媒体访问控制）处理单元（20）读取由帧收发单元接收的以太网帧的报头信息，以通过端口检测OAM（操作，管理和维护）帧和状态信息，并且使用 通过端口的状态信息，并通过帧收发单元将生成的OAM帧发送到以太网。 SDH（同步数字体系）处理单元（30）接收有关以太网的状态和故障信息，生成对应的SDH OAM帧。 输出接口单元（40）接收在SDH处理单元中生成的帧并将接收到的帧输出到SDH网络。 信号处理单元（60）接收在帧收发单元中检测到的故障信息，生成对应的OAM信号，并且在MAC处理中生成的OAM帧中生成SDH OAM帧生成信息的网络上传送状态和故障信息 单元到SDH处理单元。
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公开(公告)号：KR1020080050246A
公开(公告)日：2008-06-05
申请号：KR1020070069793
申请日：2007-07-11
Applicant: 한국전자통신연구원
IPC: H04L12/741 , H04L29/06 , H04L12/26
CPC classification number: H04L45/7457
Abstract: A range matching search method using a CAM(Content Address Memory) and an apparatus thereof are provided to effectively perform searching by using the entire 5-tuple, and to be immediately applied for an IPv6 system. The first search table(100) discriminates a rule as the first and second search units, and stores information corresponding to the first search unit in each entry. The second search table(200) stores information corresponding to the second search unit in each entry. A control module(300) extracts the first search key of an input frame to search the first search table, extracts the second search key to search the second search table in order to find the same entry. The first search unit is a transmission IP address and a reception IP address of 5-tuple information, and the second search unit is a transmission port, a reception port and a protocol number.
Abstract translation: 提供使用CAM（内容地址存储器）的范围匹配搜索方法及其装置，以通过使用整个5元组来有效地执行搜索，并且立即应用于IPv6系统。 第一搜索表（100）将规则识别为第一和第二搜索单元，并且将与第一搜索单元相对应的信息存储在每个条目中。 第二搜索表（200）在每个条目中存储对应于第二搜索单元的信息。 控制模块（300）提取输入帧的第一搜索关键字以搜索第一搜索表，提取第二搜索关键字以搜索第二搜索表以便找到相同的条目。 第一搜索单元是传输IP地址和5元组信息的接收IP地址，第二搜索单元是传输端口，接收端口和协议号码。
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公开(公告)号：KR1020080050245A
公开(公告)日：2008-06-05
申请号：KR1020070069792
申请日：2007-07-11
Applicant: 한국전자통신연구원
CPC classification number: H04L41/12 , G06F2213/0026 , H04L12/10 , H04L47/20 , H04L47/22
Abstract: An Ethernet-based stand-alone type network security system is provided to enable a manager to easily manage a system by mounting a storage unit for storing a huge amount of log information for system monitoring. A control processing unit(200) controls an operation of an overall system and manages a state of the system. A network processing unit(300) performs a traffic management function by interworking with the control processing unit, and outputs switching/routing path information obtained by performing the traffic management function to a corresponding line interface or a monitor interface, or perform a reverse function. An Ethernet physical layer unit(400) includes a line interface connected with an external network and a monitor interface(741) connected with the control processing unit, restores a line interface signal or a monitor interface signal to a physical layer signal, and transfers the restored signal to the network processing unit, or performs a reverse function. A storage unit(500) receives log information for system monitoring from the control processing unit, and stores the same.
Abstract translation: 提供了一种基于以太网的独立式网络安全系统，使管理者可以通过安装用于存储大量用于系统监控的日志信息的存储单元轻松管理系统。 控制处理单元（200）控制整个系统的操作并管理系统的状态。 网络处理单元（300）通过与控制处理单元相互配合来执行交通管理功能，并且通过执行交通管理功能获得的交换/路由路径信息到相应的线路接口或监视接口，或者执行反向功能。 以太网物理层单元（400）包括与外部网络连接的线路接口和与控制处理单元连接的监视器接口（741），将线路接口信号或监视器接口信号恢复到物理层信号，并将 恢复信号到网络处理单元，或执行反向功能。 存储单元（500）从控制处理单元接收用于系统监视的日志信息，并存储该信息。
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公开(公告)号：KR1020070061273A
公开(公告)日：2007-06-13
申请号：KR1020060078979
申请日：2006-08-21
Applicant: 한국전자통신연구원
CPC classification number: H04L41/06 , H04L43/0811 , H04L2012/5625
Abstract: An apparatus and a method for informing about an OAM(Operation, Administration and Maintenance) failure in an Ethernet are provided to construct a carrier Ethernet as well as an LAN and a metro network with guaranteed connectivity by providing an Ethernet OAM failure notification function. An MEP(Maintenance End Point) of a physical layer level periodically generates a CC(Continuity Check) frame for checking a connection state of an Ethernet(S210). Each MEP checks whether the CC frames generated by different MEPs have been normally received(S220). If a CC frame is not received, the MEP periodically generates an AIS(Alarm Indication Signal) frame and transmits it to a client equipment of the opposite side of a failure-occurred point(S230). Upon receiving the AIS frames, the MEPs transmit the AIS frames to an adjacent node of an upper level(S240,S250). When the MEP has received the AIS frame, it transmits the AIS frame to an adjacent node of a level to which the MEP itself belongs(S260,S270). The process is repeatedly performed until the AIS frame reaches a client level(S280). When the AIS frame reaches the client level and a failure generation is notified, a failure verification is performed and a necessary measure is taken(S290).
Abstract translation: 提供了用于通知以太网中的OAM（操作，管理和维护）故障的装置和方法，以通过提供以太网OAM故障通知功能来构建具有保证连接性的运营商以太网以及LAN和城域网。 物理层级的MEP（维护结束点）周期性地生成用于检查以太网的连接状态的CC（连续性检查）帧（S210）。 每个MEP检查由不同MEP生成的CC帧是否已被正常接收（S220）。 如果没有接收到CC帧，则MEP周期性地生成AIS（报警指示信号）帧并将其发送到故障发生点的相对侧的客户端设备（S230）。 在接收到AIS帧时，MEP将AIS帧发送到上一级的相邻节点（S240，S250）。 当MEP已经接收到AIS帧时，它将AIS帧发送到MEP本身所属的级别的相邻节点（S260，S270）。 重复执行该过程，直到AIS帧达到客户端级别（S280）。 当AIS帧达到客户端级别并通知故障生成时，执行故障验证并采取必要的措施（S290）。
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公开(公告)号：KR1020070061236A
公开(公告)日：2007-06-13
申请号：KR1020060071647
申请日：2006-07-28
Applicant: 한국전자통신연구원
CPC classification number: H04L47/2441 , H04L45/50 , H04L49/352
Abstract: A QoS-guaranteed switched router system is provided to construct a QoS-guaranteed network without having to change an existing Internet access network in constructing a broadband convergence network by providing flow-based packet classification and intelligent congestion control. The first and second line processing units(11,12) perform flow-based processing on an Internet protocol or multi-protocol label switch packet selectively received through a line interface of an n-gigabit Ethernet having the m number of ports or an m-gigabit Ethernet having the n number of ports according to each application. An application processing unit(13) downloads a booting process and software load data of the first and second line processing units(11,12), manages a system including alarm, log, statistics and performance monitoring by collecting management information from the first and second line processing units, and provides an external interface that is able to manage the system.
Abstract translation: 提供QoS保证的交换路由器系统，通过提供基于流的分组分类和智能拥塞控制，构建QoS保证网络，而无需通过构建宽带融合网络来改变现有的互联网接入网络。 第一和第二行处理单元（11,12）对通过具有m个端口的n吉比特以太网的线路接口选择性地接收的因特网协议或多协议标签交换机分组执行基于流的处理， 千兆以太网根据每个应用具有n个端口。 应用处理单元（13）下载第一和第二线路处理单元（11,12）的引导处理和软件加载数据，通过从第一和第二线路收集管理信息来管理包括警报，日志，统计和性能监视的系统 线路处理单元，并提供能够管理系统的外部接口。
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