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1. 发明授权

US07873041B2 Method and apparatus for searching forwarding table 失效
标题翻译：搜索转发表的方法和装置
公开(公告)号：US07873041B2
公开(公告)日：2011-01-18
申请号：US11947353
申请日：2007-11-29
申请人： Won-Kyoung Lee , Jae-Woo Park , Young-Sik Chung , Yoo-Kyoung Lee
发明人： Won-Kyoung Lee , Jae-Woo Park , Young-Sik Chung , Yoo-Kyoung Lee
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： G06F17/30949 , H04L12/66
摘要： A method and apparatus for searching a forwarding table are provided. The apparatus includes: a data storage unit storing a forwarding table including a plurality of forwarding entries aligned in the order of MAC address values and stored in each group after being classified into a plurality of groups and a plurality of forwarding databases having hash keys corresponding to the groups and; a hashing unit transforming an externally input MAC address into a hash key and selecting a search group and a search-forwarding entry by respectively using some bits and the other bits of the hash key; and a port information output unit outputting output port information of the search-forwarding entry, when the input MAC address is the same as a MAC address extracted from the search-forwarding entry and outputting output port information after searching and acquiring a forwarding entry having the input MAC address while dividing a search area in the search group, when the input MAC address is different from the extracted MAC address. Accordingly, it is possible to speedily search a forwarding table.
摘要翻译：提供了一种用于搜索转发表的方法和装置。该装置包括：数据存储单元，存储转发表，该转发表包括按照MAC地址值的顺序排列的多个转发条目，并且在被分类为多个组之后存储在每个组中，并且多个转发数据库具有对应于团体和散列单元将外部输入的MAC地址变换为散列密钥，并分别使用所述散列密钥的一些比特和其他比特来选择搜索组和搜索转发条目; 以及端口信息输出单元，当输入的MAC地址与从搜索转发表项提取的MAC地址相同时输出搜索转发表项的输出端口信息，并且在搜索并获取具有当输入MAC地址与提取的MAC地址不同时，输入MAC地址，同时分割搜索组中的搜索区域。因此，可以快速搜索转发表。

2. 发明授权

US07274654B2 Method for sharing backup path in MPLS network, label switching router for setting up backup in MPLS network, and system therefor 失效
标题翻译：在MPLS网络中共享备份路径的方法，在MPLS网络中建立备份的标签交换路由器及其系统
公开(公告)号：US07274654B2
公开(公告)日：2007-09-25
申请号：US10175926
申请日：2002-06-20
申请人： Mi-jung Yang , Byung-chun Jeon , Yoo-kyoung Lee
发明人： Mi-jung Yang , Byung-chun Jeon , Yoo-kyoung Lee
IPC分类号： G08C15/00
CPC分类号： H04L45/28 , H04J3/14 , H04L45/00 , H04L45/22 , H04L45/50 , H04L69/40
摘要： A method for sharing a backup path in a MultiProtocol Label Switching (MPLS) network, a label switching router (LSR) for setting a backup path in an MPLS network, a system for setting a backup path in an MPLS network, and a recording medium therefor are provided. The method includes the steps of acquiring link configuration information of links included in a working path when the working path is set between a source node and a destination node, and allocating bands for a backup path using the link configuration information when the backup path is set between the source node and the destination node. In the method, an optimal band is allocated to each of links included in a backup path by calculating a band using information, which is obtained during setting of a working path, about at least one other working path sharing links with the working path when the backup path is set, thereby efficiently managing network resources without wasting them.
摘要翻译：一种用于在多协议标签交换（MPLS）网络中共享备份路径的方法，用于在MPLS网络中设置备份路径的标签交换路由器（LSR），用于在MPLS网络中设置备份路径的系统以及记录介质因此提供。该方法包括以下步骤：当在源节点和目的地节点之间设置工作路径时获取包括在工作路径中的链路的链路配置信息，并且当备份路径被设置时，使用链路配置信息为备份路径分配频带在源节点和目的节点之间。在该方法中，通过计算在工作路径的设定期间获得的频带使用信息，分配到包括在备用路径中的每个链路的最佳频带，其中至少一个其他工作路径与当工作路径共享链路时备份路径被设置，从而有效地管理网络资源而不浪费它们。

3. 发明申请

US20100039943A1 FRAME LOSS MEASUREMENT APPARATUS AND METHOD FOR MULTICAST SERVICE TRAFFIC 审中-公开
标题翻译：框架损失测量装置和多媒体服务流量的方法
公开(公告)号：US20100039943A1
公开(公告)日：2010-02-18
申请号：US12447075
申请日：2006-12-06
申请人： Jeong-Dong Ryoo , Kyung-Mook Lim , Tae-sik Cheung , Yoo-Kyoung Lee
发明人： Jeong-Dong Ryoo , Kyung-Mook Lim , Tae-sik Cheung , Yoo-Kyoung Lee
IPC分类号： H04J3/14 , G06F11/00
CPC分类号： H04L12/18 , H04L43/0835
摘要： An apparatus and method for measuring frame loss in multicast service traffic are provided. The method of measuring frame loss includes: counting the number of data frames of a predetermined multicast service flowing into an object network of frame loss measurement; counting the number of data frames of the predetermined multicast service flowing out of the network; and measuring frame loss by comparing the counted number of incoming frames and the counted number of outgoing frames. According to the method and apparatus, in a multicast service environment which is dynamically changing, frame loss of a predetermined multicast service can be conveniently and easily measured.
摘要翻译：提供了一种用于测量组播业务流量帧丢失的装置和方法。测量帧丢失的方法包括：对流入对象网络的预定多播服务的帧丢失测量的数据帧数进行计数; 对流出网络的预定多播服务的数据帧数进行计数; 并通过比较输入帧的计数和计数的出帧数来测量帧丢失。根据该方法和装置，在动态变化的组播业务环境中，可以容易地测量预定组播业务的帧丢失。

4. 发明申请

US20090254676A1 METHOD FOR TRANSFERRING DATA FRAME END-TO-END USING VIRTUAL SYNCHRONIZATION ON LOCAL AREA NETWORK AND NETWORK DEVICES APPLYING THE SAME 审中-公开
标题翻译：使用本地区域网络虚拟同步端到端传输数据帧的方法及其应用的网络设备
公开(公告)号：US20090254676A1
公开(公告)日：2009-10-08
申请号：US12096758
申请日：2006-12-06
申请人： Seong-Soon Joo , Young-Sik Chung , Tae-Joon Park , Jin-Young Lee , Yoo-Kyoung Lee , Hae-Won Jung , Young-Cheol Bang , Moon-Sung Kim , Kang-Yong Lee , Kyung-Mook Lim
发明人： Seong-Soon Joo , Young-Sik Chung , Tae-Joon Park , Jin-Young Lee , Yoo-Kyoung Lee , Hae-Won Jung , Young-Cheol Bang , Moon-Sung Kim , Kang-Yong Lee , Kyung-Mook Lim
IPC分类号： G06F15/16
CPC分类号： H04L12/4625
摘要： A method for transferring data frame end-to-end in a local area network is provided. In the method, a virtual synch frame shaper is loaded on a frame transmission layer structure provided in end stations in transmitting and receiving sides, which transmits data frame passing through a plurality of Ethernet switches in the LAN. Then, slot counters, which are counted through the virtual synch frame shaper, are exchanged between the end stations, and the slot counters are synchronized. Afterward, the transmit time slot is allocated based on the synchronized slot counters for transmitting data frames between the end stations. Finally, data frames are transmitted based on the synchronized slot counters and the allocated transmit time slot.
摘要翻译：提供了一种在局域网中端到端传送数据帧的方法。在该方法中，虚拟同步帧整形器被加载在发送和接收侧的终端站中提供的帧传输层结构上，发送和接收侧发送通过LAN中的多个以太网交换机的数据帧。然后，通过虚拟同步帧整形器计数的时隙计数器在终端站之间交换，并且时隙计数器被同步。之后，基于用于在终端站之间发送数据帧的同步时隙计数器分配发送时隙。最后，基于同步的时隙计数器和分配的发送时隙来发送数据帧。

5. 发明授权

US06356566B1 Clock signal generating apparatus for data communication channel 失效
标题翻译：用于数据通信信道的时钟信号发生装置
公开(公告)号：US06356566B1
公开(公告)日：2002-03-12
申请号：US09111235
申请日：1998-07-07
申请人： Tae Hee Lee , Jong Ho Kim , Jeong Hoon Ko , Yoo Kyoung Lee
发明人： Tae Hee Lee , Jong Ho Kim , Jeong Hoon Ko , Yoo Kyoung Lee
IPC分类号： H04J306
CPC分类号： H04J3/0685 , H04J3/047 , H04J2203/0089
摘要： A clock signal generating apparatus for a data communication channel is disclosed which includes a first clock signal generating unit for receiving an external input clock signal and a frame position informing signal and outputting a predetermined cycle first clock signal and a first timing signal, a second clock signal generating unit for receiving the first clock signal and the first timing signal and externally outputting a first offset signal, a second timing signal, and a predetermined cycle second clock signal, respectively, and a third clock signal generating unit for receiving the first clock signal and the first timing signal and externally outputting a second offset signal, a third timing signal and a predetermined cycle third clock signal, respectively, for thereby implementing a reliable serial/parallel conversion, extraction and insertion of a data by generating a stable clock and timing signal using a simple circuit and supplying a stable clock signal for matching with an external apparatus for thereby achieving a reliable data communication for a system.
摘要翻译：公开了一种用于数据通信信道的时钟信号产生装置，包括：第一时钟信号产生单元，用于接收外部输入时钟信号和帧位置通知信号，并输出预定周期的第一时钟信号和第一定时信号;第二时钟信号发生单元，用于分别接收第一时钟信号和第一定时信号，并分别外部输出第一偏移信号，第二定时信号和预定的周期第二时钟信号;第三时钟信号产生单元，用于接收第一时钟信号和第一定时信号，并且分别从外部输出第二偏移信号，第三定时信号和预定的周期第三时钟信号，从而通过产生稳定的时钟和定时来实现可靠的串行/并行转换，数据的提取和插入信号使用简单的电路并提供稳定的时钟信号以匹配从而实现系统的可靠数据通信。

6. 发明授权

US07266124B2 Method for setting up QoS supported bi-directional tunnel and distributing L2VPN membership information for L2VPN using extended LDP 有权
标题翻译：用于建立QoS支持的双向隧道并使用扩展LDP分发L2VPN的L2VPN成员关系信息的方法
公开(公告)号：US07266124B2
公开(公告)日：2007-09-04
申请号：US10413177
申请日：2003-04-14
申请人： Mi Hui Kim , Jong Hyup Lee , Yoo Kyoung Lee
发明人： Mi Hui Kim , Jong Hyup Lee , Yoo Kyoung Lee
IPC分类号： H04L12/56
CPC分类号： H04L45/502 , H04L12/4641 , H04L45/04 , H04L45/302 , H04L45/507
摘要： The present invention presents a method for setting up a QoS (Quality-of-Service) supported bi-directional tunnel and distributing L2VPN (Layer-2 Virtual Private Network) membership information for an L2VPN using an extended LDP (Label Distribution Protocol). In a network providing MPLS based L2VPN service, which includes a plurality of VPN provider edges (PEs), a plurality of VPN customer edges (CEs) connected to the PEs and a VPN DNS (Domain Name Service) server for managing PE information associated with a plurality of VPNs, a PE registers information associated with the VPN DNS server to provide the L2VPN service, and uses the extended LDP for QoS supported bi-directional tunnel setup and the extended LDP for QoS supported L2VPN membership information distribution. A VPN CE needs only a simple Layer-2 connection providing function for the L2VPN service.
摘要翻译：本发明提出了一种使用扩展LDP（标签分发协议）来建立QoS（服务质量）支持双向隧道并分发L2VPN（二层虚拟专用网）成员关系信息的方法。在提供基于MPLS的L2VPN服务的网络中，其包括多个VPN提供商边缘（PE），连接到PE的多个VPN客户边缘（CE）和用于管理与PE相关联的PE信息的VPN DNS（域名服务）服务器多个VPN，PE注册与VPN DNS服务器相关的信息，提供L2VPN业务，并使用扩展LDP进行QoS支持的双向隧道建立，扩展LDP进行QoS支持的L2VPN会员信息分发。 VPN CE只需要L2VPN服务的简单二层连接提供功能。

7. 发明申请

US20080267074A1 METHOD OF SETING QoS PACKET FLOW AND HANDLING QoS PACKET IN PACKET SWITCHING SYSTEM 审中-公开
标题翻译：在分组交换系统中查看QoS分组流和处理QoS分组的方法
公开(公告)号：US20080267074A1
公开(公告)日：2008-10-30
申请号：US12023767
申请日：2008-01-31
申请人： Jee Yon Choi , Yoo-Kyoung Lee
发明人： Jee Yon Choi , Yoo-Kyoung Lee
IPC分类号： G01R31/08
CPC分类号： H04L49/9078 , H04L49/205 , H04L49/254 , H04L49/30 , H04L49/3045 , H04L49/90
摘要： Provided is a method of setting a QoS packet flow and processing a QoS packet for providing a QoS service. In the method of setting a QoS packet flow in the packet switching system, whether there are VOQs that are not pre-allocated is determined in response to a QoS packet flow setting request. If there are no VOQs that are not pre-allocated, it is determined whether there are VOQs that have not been used for a predetermined period. If there are VOQs that have not been used for the predetermined period, one of the VOQs is selected. Thereafter, an inactive state of a flow using the selected VOQ is indicated and QoS parameters set for the flow are released. Therefore, metro Ethernet services such as E-LINE and E-LAN can be provided in an Ethernet network and custom QoS services such as Diff Serv and ACL can be provided in an IP network. Also, limited resources can be efficiently used and thus costs can be reduced.
摘要翻译：提供了一种设置QoS分组流并处理用于提供QoS服务的QoS分组的方法。在分组交换系统中设置QoS分组流的方法中，是否响应于QoS分组流设置请求来确定是否存在未预分配的VOQ。如果没有没有预分配的VOQ，则确定是否存在在预定时间段内尚未使用的VOQ。如果在预定时间段内没有使用VOQ，则选择一个VOQ。此后，指示使用所选择的VOQ的流的不活动状态，并且释放为流设置的QoS参数。因此，可以在以太网中提供诸如E-LINE和E-LAN的城域以太网业务，并且可以在IP网络中提供诸如Diff Serv和ACL之类的定制QoS服务。此外，可以有效地使用有限的资源，因此可以降低成本。

8. 发明授权

US5926102A Method for controlling bidirectional line protection switching by using a remote defect indication signal 失效
标题翻译：通过使用远程缺陷指示信号来控制双向线路保护切换的方法
公开(公告)号：US5926102A
公开(公告)日：1999-07-20
申请号：US891494
申请日：1997-07-11
申请人： Kyung-Gyu Chun , Yoo-Kyoung Lee
发明人： Kyung-Gyu Chun , Yoo-Kyoung Lee
IPC分类号： H04B7/155 , H04J3/14 , H04L1/22 , H04L29/14 , H04Q11/04 , H04L1/00
CPC分类号： H04J3/14 , H04L1/22 , H04L69/40 , H04J2203/006 , Y10S379/905
摘要： A method for controlling bidirectional line protection switching by using a remote defect indication signal. The method includes the following steps of: inserting and transmitting a remote defect indication signal through the opposite directional link, in case the receiving end of working line detects a defect while a traffic is transmitted via a bidirectional link, and then switching to a back-up line by controlling the selector of the receiving station; and switching to the protection line by controlling the selector of the transmitting station, in case the remote defect indication signal is detected via the opposite directional link.
摘要翻译：一种通过使用远程缺陷指示信号来控制双向线路保护切换的方法。该方法包括以下步骤：通过相对的定向链路插入和发送远程缺陷指示信号，在工作线路的接收端通过双向链路传输业务时检测到缺陷，然后切换到后端，控制接收站的选择器; 并且在通过相对的定向链路检测到远程缺陷指示信号的情况下，通过控制发送站的选择器来切换到保护线路。

9. 发明申请

US20080133545A1 TERMINAL DEVICES WITH FUNCTION OF DISTRIBUTING DATA AND METHOD AND SYSTEM FOR DISTRIBUTING MULTIMEDIA DATA USING THE SAME 审中-公开
标题翻译：具有分配数据功能的终端设备和使用该数据分配多媒体数据的方法和系统
公开(公告)号：US20080133545A1
公开(公告)日：2008-06-05
申请号：US11950035
申请日：2007-12-04
申请人： Bong Wan KIM , Yoo Kyoung LEE
发明人： Bong Wan KIM , Yoo Kyoung LEE
IPC分类号： G06F17/30
CPC分类号： H04N21/64322 , G06F16/40 , H04N21/23103 , H04N21/23116 , H04N21/4147 , H04N21/433
摘要： A terminal device with a function of distributing data, a method and a system for distributing multimedia data using the same are provided. In order to reduce loads of a core network and effectively use a network, the terminal device includes: a storage unit storing data; a data request monitor sensing a request for the data which is transmitted from another terminal device through a network; and a data controller determining whether the requested data is stored in the storage unit in response to the request for the data and transmitting the data to the requesting terminal device through the network when the requested data is stored in the storage unit. Accordingly, it is possible to expect an effect as in a case where a plurality of data severs are installed with low costs.
摘要翻译：提供具有分发数据功能的终端设备，用于分发使用该数据的多媒体数据的方法和系统。为了减轻核心网络的负载并有效地使用网络，终端设备包括：存储数据的存储单元; 数据请求监视器，感测对通过网络从另一个终端设备发送的数据的请求; 以及数据控制器，当所请求的数据存储在所述存储单元中时，响应于对所述数据的请求确定所请求的数据是否被存储在所述存储单元中，并且通过所述网络将所述数据通过所述网络发送到所述请求终端设备。因此，可以期待效果，就像以低成本安装多个数据存储器的情况。

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