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公开(公告)号：KR1020040047309A
公开(公告)日：2004-06-05
申请号：KR1020020075464
申请日：2002-11-29
IPC: H04L12/28
Abstract: PURPOSE: An apparatus and method for interfacing different types of back pressures are provided to interface an in-band type back pressure unit and an out-band type back pressure unit by converting an in-band type control signal to an out-band type control signal. CONSTITUTION: A synchronous signal generator(507) generates a clock required for restoring cell synchronization and a synchronous signal corresponding to a current synchronization state. A cell extracting unit(505) extracts a 4-byte cell header upon receiving a cell start signal of a cell consisting of 64 bytes. A cell reading unit(504) extracts FBPBITMAP(0:39) information and BPSYNC(0:3) information included in a header related to a 12-byte back pressure which has been inputted during 3 clocks from the cell start signal, and compares/reads the BPSYNC signal with the synchronous signal generated from the synchronous signal generator(507). An FBPBITMAP register(506) temporarily stores the FBPBITMAP information. An FBPBITMAP comparator(503) compares the FBPBITMAP information temporarily stored in the FBPBITMAP register(506) with the current FBPBITMAP information inputted from the cell reading unit(504). A back pressure storing unit(502) stores information on a logical port. An external signal generator(501) converts the information on the logical port to an external back pressure signal.
Abstract translation: 目的：提供用于连接不同类型的背压的装置和方法，用于通过将带内型控制信号转换为带外型控制信号到带外型背压单元和带外型背压单元 信号。 构成：同步信号发生器（507）产生恢复单元同步所需的时钟和对应于当前同步状态的同步信号。 小区提取单元（505）在接收到由64字节组成的小区的小区起始信号时提取4字节的小区头。 单元读取单元（504）从单元开始信号中提取在3个时钟内输入的与12字节背压有关的标题中的FBPBITMAP（0:39）信息和BPSYNC（0：3）信息，并进行比较 /用同步信号发生器（507）产生的同步信号读取BPSYNC信号。 FBPBITMAP寄存器（506）临时存储FBPBITMAP信息。 FBPBITMAP比较器（503）将临时存储在FBPBITMAP寄存器（506）中的FBPBITMAP信息与从单元读取单元（504）输入的当前FBPBITMAP信息进行比较。 背压存储单元（502）存储关于逻辑端口的信息。 外部信号发生器（501）将逻辑端口上的信息转换为外部背压信号。
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公开(公告)号：KR100431203B1
公开(公告)日：2004-05-12
申请号：KR1020020024963
申请日：2002-05-07
IPC: H04L12/28
Abstract: PURPOSE: A method for duplicating an IPC(Inter-Processor Communication) channel using Ethernet hub boards is provided to stabilize an IPC channel by using two duplicated Ethernet hub boards. CONSTITUTION: If an IPC message to be transmitted to processor B or C(130,140) is made at processor board A(120) in the form of an Ethernet frame, the made Ethernet frame is transferred to processor B or C(130,140) through an active Ethernet hub board among two duplicated Ethernet hub boards A and B(100,110) according to an Ethernet protocol operation. On the contrary, on case that an IPC message to be transmitted to processor A(120) is made at processor board B(130) in the form of an Ethernet frame, the made Ethernet frame is transferred to processor A(120) through the active Ethernet hub board according to an Ethernet protocol operation.
Abstract translation: 目的：提供一种使用以太网集线器板复制IPC（处理器间通信）信道的方法，通过使用两个复制的以太网集线器板来稳定IPC信道。 构成：如果在处理器板A（120）上以以太网帧的形式发送IPC消息发送给处理器B或C（130,140），则所产生的以太网帧通过一个以太网帧传送到处理器B或C（130,140） 根据以太网协议操作，在两个复制以太网集线器板A和B（100,110）之间的有源以太网集线器板。 相反，如果在处理器板B（130）处以以太网帧的形式发送要发送到处理器A（120）的IPC消息，则将所制作的以太网帧通过以太网帧传送到处理器A（120） 根据以太网协议操作的有源以太网集线器板。
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公开(公告)号：KR1020030086787A
公开(公告)日：2003-11-12
申请号：KR1020020024963
申请日：2002-05-07
IPC: H04L12/28
Abstract: PURPOSE: A method for duplicating an IPC(Inter-Processor Communication) channel using Ethernet hub boards is provided to stabilize an IPC channel by using two duplicated Ethernet hub boards. CONSTITUTION: If an IPC message to be transmitted to processor B or C(130,140) is made at processor board A(120) in the form of an Ethernet frame, the made Ethernet frame is transferred to processor B or C(130,140) through an active Ethernet hub board among two duplicated Ethernet hub boards A and B(100,110) according to an Ethernet protocol operation. On the contrary, on case that an IPC message to be transmitted to processor A(120) is made at processor board B(130) in the form of an Ethernet frame, the made Ethernet frame is transferred to processor A(120) through the active Ethernet hub board according to an Ethernet protocol operation.
Abstract translation: 目的：提供使用以太网集线器板复制IPC（处理器间通信）通道的方法，以通过使用两个重复的以太网集线器板来稳定IPC通道。 规定：如果在以太网帧形式的处理器板A（120）上发送要发送到处理器B或C（130,140）的IPC消息，则所制造的以太网帧通过以下帧传送到处理器B或C（130,140） 根据以太网协议操作，两个重复的以太网集线器板A和B（100,110）之间的主用以太网集线器板。 相反，在以太网帧的形式在处理器板B（130）处发送到处理器A（120）的IPC消息的情况下，所做的以太网帧通过以太网帧传送到处理器A（120） 有源以太网集线器板根据以太网协议操作。
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公开(公告)号：KR1020030082842A
公开(公告)日：2003-10-23
申请号：KR1020020021339
申请日：2002-04-18
IPC: H04L12/28
CPC classification number: H04L45/50 , H04L12/5601 , H04L2012/5625
Abstract: PURPOSE: An OAM(Operating And Management) processing method in an ATM(Asynchronous Transfer Mode)-based MPLS(Multi Protocol Label Switch) system is provided to offer an OAM function requested between a router and a subscriber network and offer an OAM function with respect to an ATM service in the ATM-based MPLS system. CONSTITUTION: Channel information set up through an IPC(Inter Processor Communication) between an FE(Forwarding Engine)(31) and an MSC(MPLS Service Controller)(34) is stored in a table. A service type is judged from the formed channel table whenever an OAM cell is inputted to a specific channel. If the received OAM cell is an OAM cell inputted to an LSP(Label Switched Path) channel, the OAM cell is transmitted to the FE(31) through a PCI(Peripheral Component Interconnect). If the received OAM cell is an OAM cell inputted to an ATM channel, the OAM cell is transmitted to an input and output buffer switch(32) through a UTOPIA(Universal Test and Operations PHY Interface for ATM). The OAM process with respect to the LSP channel and the ATM channel is simultaneously performed in one system. Various OAM function are embodied between the FE(31) and a node of a subscriber network through the IPC from the MSC(34).
Abstract translation: 目的：提供基于ATM（异步传输模式）的MPLS（多协议标签交换）系统中的OAM（操作和管理）处理方法，以提供在路由器和订户网络之间请求的OAM功能，并提供OAM功能， 关于基于ATM的MPLS系统中的ATM服务。 构成：通过FE（转发引擎）（31）和MSC（MPLS服务控制器）（34）之间的IPC（处理器间通信）设置的信道信息存储在表中。 每当将OAM单元输入到特定频道时，从形成的频道表中判断服务类型。 如果接收到的OAM小区是输入到LSP（标签交换路径）信道的OAM小区，则通过PCI（外围组件互连）将OAM小区发送到FE（31）。 如果所接收的OAM小区是输入到ATM信道的OAM小区，则通过UTOPIA（ATM的通用测试和操作PHY接口）将OAM小区发送到输入和输出缓冲开关（32）。 在一个系统中同时执行相对于LSP信道和ATM信道的OAM过程。 通过IPC（34）的IPC，在FE（31）和用户网络的节点之间实现各种OAM功能。
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公开(公告)号：KR1020030015570A
公开(公告)日：2003-02-25
申请号：KR1020010049357
申请日：2001-08-16
IPC: H04L12/28
CPC classification number: H04L12/5601 , H04L2012/5652 , H04L2012/5658
Abstract: PURPOSE: A device driving system for performing a high-speed SAR(Segmentation And Reassembly)function is provided to drive an MXT4400 AAL(ATM(Asynchronous Transfer Mode) Adaptation Layer)-5 SAR chip for performing the SAR function about an ATM cell. CONSTITUTION: An SAR high-level control unit(10) performs a programming interface of a host application program and an SAR low-level control unit(30). A data structure defining unit(20) defines and stores data necessary for controlling each control unit. The SAR low-level control unit(30) provides a mechanical code operated in an SAR device and a programming interface. A peripheral device connection bus control unit(40) sets a control path between the SAR device and a host central device.
Abstract translation: 目的：提供用于执行高速SAR（分段和重组）功能的设备驱动系统，以驱动用于执行关于ATM信元的SAR功能的MXT4400AAL（ATM（异步传输模式）适配层）-5 SAR芯片。 构成：SAR高级控制单元（10）执行主机应用程序和SAR低级控制单元（30）的编程接口。 数据结构定义单元（20）定义并存储控制每个控制单元所需的数据。 SAR低级控制单元（30）提供在SAR设备和编程接口中操作的机械代码。 外围设备连接总线控制单元（40）设置SAR设备和主机中央设备之间的控制路径。
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Patent Agency Ranking
公开(公告)号：KR1020010057812A
公开(公告)日：2001-07-05
申请号：KR1019990061222
申请日：1999-12-23
Applicant: 한국전자통신연구원
IPC: H04L12/751 , H04L12/707 , H04L12/801 , H04L12/54
Abstract: PURPOSE: An interface unit of an ATM(Asynchronous Transfer Mode) switch in an edge router of an MPLS(Multi-Protocol Label Switching) network, is provided to enable cell frames having different structure to be converted to each other. CONSTITUTION: A memory part(30) stores a cell that will be transmitted. An output port information storing part(35) stores the information related to an output port of a switch. A transmission cell conversion part(31) reads the cell stored in the part(30), and then converts the information stored in the part(35) to a local internal cell. A cell path selection part(34) provides a loop-back function. A reception cell conversion part(37) converts the structure of the local cell frame, received in response to a clock applied via a switch link, to the structure of a standard cell frame. A memory part(38) stores a received cell which is converted by the reception cell conversion part(37).
Abstract translation: 目的：提供MPLS（多协议标签交换）网络的边缘路由器中的ATM（异步传输模式）交换机的接口单元，以使得具有不同结构的小区帧能够相互转换。 构成：存储器部分（30）存储将被发送的单元。 输出端口信息存储部（35）存储与开关的输出端口有关的信息。 传输单元转换部分（31）读取部分（30）中存储的单元，然后将存储在部分（35）中的信息转换成局部内部单元。 小区路径选择部（34）提供环回功能。 接收单元转换部（37）将响应于经由切换链路施加的时钟而接收的本地小区帧的结构转换为标准小区框架的结构。 存储器部分（38）存储由接收单元转换部分（37）转换的接收单元。
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公开(公告)号：KR1020010057772A
公开(公告)日：2001-07-05
申请号：KR1019990061178
申请日：1999-12-23
Applicant: 한국전자통신연구원
IPC: H04L12/28
CPC classification number: H04L45/50 , H04L1/004 , H04L45/745 , H04L69/22
Abstract: PURPOSE: An apparatus for controlling a lookup of a high-speed IP(Internet Protocol) header in an edge router of an MPLS(Multi-Protocol Label Switching) network, is provided to improve lookup process efficiency, by processing the lookup based on hardware in parallel using a control circuit, and expanding an IP lookup table without connection of each device in series. CONSTITUTION: An IP packet header receiver(301) receives IP packet information and IP header information. An IP packet header test part(302) recognizes a packet type of the packet information. An IP header label extraction part(303) recognizes an IP header area, and thereby extracts an IP header and an MPLS label. An IP packet header test part(304) performs a test function. A lookup data/control generation part(306) controls a control signal for performing the lookup, an IP target place address and an originating place address. A lookup device interface part(307) provides a function for interfacing with a lookup device. A label information interface part(308) fetches label information from a label information table, and then stores it in a storage part(309). A transmission header change sort part(310) extracts desired information, and sorts it.
Abstract translation: 目的：提供一种用于控制在MPLS（多协议标签交换）网络的边缘路由器中的高速IP（因特网协议）报头查找的装置，以通过处理基于硬件的查找来提高查找过程效率 并行地使用控制电路，并且在不连接每个设备的情况下扩展IP查找表。 构成：IP分组报头接收机（301）接收IP分组信息和IP报头信息。 IP分组报头测试部分（302）识别分组信息的分组类型。 IP报头标签提取部（303）识别IP报头区域，从而提取IP报头和MPLS标签。 IP分组报头测试部（304）执行测试功能。 查找数据/控制生成部分（306）控制用于执行查找的控制信号，IP目标地址和始发地址。 查找设备接口部分（307）提供用于与查找设备进行接口的功能。 标签信息接口部（308）从标签信息表取出标签信息，然后将其存储在存储部（309）中。 传输头改变分类部分（310）提取所需信息，并进行排序。
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公开(公告)号：KR1020000032758A
公开(公告)日：2000-06-15
申请号：KR1019980049313
申请日：1998-11-17
Applicant: 한국전자통신연구원
IPC: H04L12/28
CPC classification number: H04L49/256 , H04L12/5601 , H04L45/50 , H04L2012/562 , H04Q3/0025
Abstract: PURPOSE: A device for processing a label switching of an internet protocol packet using a TDX-ATM exchange and its method are provided to automatically process an inner processing step by simplifying by functionally blocking a processing step of packet connected with a complex routing function and to transmit the packet to a subscriber of an internet through various kinds of networks. CONSTITUTION: After constructing an SIN(ships-in the night mode) environment by initializing a system, an RIB(routing information base) and an FIB(forwarding information base) using the RIB are formed through a routing protocol, and a look-up table is constructed. A label is distributed according to an allocation of label space after initializing. An upgrade process of routing protocol is performed after sending a changing message of label information at a change. When an IP(internet protocol) packet is received to the receiving waiting state of packet after constructing the look-up table, a packet classification and a prior grade process is stabled by checking a packet type, a label header and a stack. A check of a real service grade and a management according to the change of grade are performed, a label swapping is performed, and a packet cell is changed and transmitted through a connected ATM(asynchronous transfer mode) inner network, a link, and an outer switching path.
Abstract translation: 目的：提供一种用于处理使用TDX-ATM交换机的因特网协议分组的标签交换的装置及其方法，用于通过功能性地阻止与复合路由功能连接的分组的处理步骤来简化内部处理步骤，以自动处理内部处理步骤，并且 通过各种网络将分组发送到互联网的用户。 规定：通过初始化系统构建SIN（载入夜间模式）环境后，使用RIB形成RIB（路由信息库）和FIB（转发信息库），路由协议和查找 表被建造。 标签根据初始化后的标签空间分配进行分配。 路由协议的升级过程在发送变更后的标签信息的消息时进行。 在构建查询表之后，当接收到IP（因特网协议）分组到分组的接收等待状态时，通过检查分组类型，标签头和堆栈来保持分组分类和先前级别的过程。 执行根据等级变化的真实服务等级和管理的检查，执行标签交换，并且通过连接的ATM（异步传输模式）内部网络，链路和 外部切换路径。
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公开(公告)号：KR100170495B1
公开(公告)日：1999-03-30
申请号：KR1019950047077
申请日：1995-12-06
Applicant: 한국전자통신연구원
IPC: H04L12/417
Abstract: 본 발명은 가상토큰버스 통신장의 매체접근 제어장치 및 제어방법에 관한 것으로, 다수의 노드, 통신망 관리기, 버스중계기, M-bus, D-bus 등을 포함하여 구성되어 각 노드간의 데이타 전송을 위해 가상토큰버스 방식을 이용하는 통신망에 있어서, 상기 노드들이 순환 데이지체인으로 구성되어 이 순환 데이지 체인의 가장 높은 우선순위를 가상토큰의 이동에 따라 각 노드에 순환시켜 모든 노드에게 공정한 버스점유 기회를 부여하고 또한 전송할 메세지를 가지는 노드간의 메세지 전송이 한 번의 스위치오버 시간으로 이루어질 수 있는 매체 접근 제어장치를 더 포함하여 구성되어, 가상토큰버스 통신망에서 매체에 대한 접근제어시 전송할 메세지를 가지는 두 노드 사이에 버스점유기회를 전달하는데 있어서, 순환 데이지 체인(cyclic-daisy-chain)을 이용하여 두 노드의 버스중재주소에 상관없이 항상 한 번의 가상토큰 전달시간이 걸리도록 하여 통신망의 성능 측도인 버스전송주기를 최소화할 수 있는 효과가 있다.
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公开(公告)号：KR100155505B1
公开(公告)日：1998-11-16
申请号：KR1019940036364
申请日：1994-12-23
Applicant: 한국전자통신연구원
IPC: H04L7/08
Abstract: 본 발명은 이동통신 시스템의 제어국에 포함되는 보코더/셀렉터에서 프레임 동기를 맞추어 주기 위한 프레임 동기 회로에 있어서, 상기 보코더/셀렉터내의 셀렉터에서 전송되는 신호로부터 시스템의 지연을 보상하여 출력하는 슬루어블 카운터와, 시스템 클럭을 지연시켜 출력하는 지연 카운터와, 보코더/셀렉터내의 보코더에서 트래픽 데이터가 집중되는 것을 분산시키기 위해 상기 슬루어블 카운터에서 시스템 지연이 보상된 신호를 분산시켜 출력하는 스태거링 카운터로 구성되는 것을 특징으로 하여, 슬루어블 및 스태거링 프레임 동기를 위한 별도의 명령을 셀렉터에서 보코더로 보낼 필요가 없으며, 현 시스템에서 구현되지 않은 스태거링 프레임 동기의 구현도 용이하고, 보코더의 송수신을 위한 타이밍 계산을 대신해 줌으로써 보코더의 효율� � 올릴 수 있는 효과가 있다.
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