公开(公告)号：KR1020050065991A

公开(公告)日：2005-06-30

申请号：KR1020030097167

申请日：2003-12-26

Applicant: 한국전자통신연구원

Inventor： 김용태 ,  이형섭 ,  이형호

IPC: H04L29/10

CPC classification number: H04L69/323

Abstract: MAC 시스템에서 정합 자동 인식 장치 및 그 방법이 개시된다. 본 발명에 따른 MAC 시스템에서 정합 자동 인식 장치는 물리계층으로부터 전송되는 제1 및 제2입력신호에 응답하여 제3입력신호의 상태천이 회수를 검출하고, 검출 결과에 따라 TBI인가 또는 GMII인가를 나타내는 정합판별신호를 생성하며, GMII으로 판별되면 제3입력신호를 캐리어 감지신호로서 MAC 계층으로 전송하는 정합 검출부, 제1 및 제2입력신호와 제4입력신호를 수신클럭신호 및 충돌신호와, n비트의 수신 데이터 및 2비트의 수신제어신호로하여 MAC 계층으로 전송하거나 또는 제1 및 제2수신클럭신호 및 (n+2)비트의 수신 데이터로서 수신 및 코딩하여 캐리어 감지신호, 충돌신호, 수신클럭신호, n비트의 수신 데이터 및 2비트의 수신제어신호를 생성하고 생성된 신호들을 MAC 계층으로 전송하는 수신 처리부 및 n비트의 송신 데이터 및 2비트의 송신제어신 호를 물리계층으로 전송하거나 또는 (n+2)비트의 송신 데이터로 코딩하여 물리계층으로 전송하는 송신 처리부를 포함하며, 물리계층으로부터 전송되는 신호들을 이용하여 TBI 또는 GMII를 자동 인식함으로써, 물리계층 모듈의 변경이 발생하더라도 소프트웨어/하드웨어의 수정없이 물리계층에 정합될 수 있다.

公开(公告)号：KR100455880B1

公开(公告)日：2004-11-06

申请号：KR1020020066485

申请日：2002-10-30

Applicant: 한국전자통신연구원

Inventor： 신동범 ,  이형섭 ,  이형호

IPC: H04L12/28

Abstract: PURPOSE: A method for transceiving a forwarding table of a distributed router system is provided to simultaneously transmit a forwarding table to all LP boards from a routing process board in a UDP/IP/broadcast method when driving an initial system, and to apply a TCP/IP/unicast method when transmitting the table to an LP board having an error and a newly inserted LP board, thereby reducing time for transmitting the forwarding table. CONSTITUTION: If a distributed router system starts operating(S301), a routing process board generates a forwarding table(S302) and configures the forwarding table by adding CRC values for both the forwarding table and size value information on the forwarding table(S303). The routing process board adds a UDP header to the forwarding table(S304), and adds an Ethernet header for broadcasting a destination address(S305). The routing process board transmits the forwarding table where the UDP header and the Ethernet header are included to an IPC board(S306). The IPC board checks the destination address of the received forwarding table, recognizes that the forwarding table is to be broadcasted, and broadcasts the forwarding table to all LP boards(S307).

Abstract translation: 目的：提供一种用于收发分布式路由器系统的转发表的方法，以在驱动初始系统时以UDP / IP /广播方法从路由处理板向所有LP板同时发送转发表，并且将TCP / IP /单播方式传输到有错误的LP板和新插入的LP板时，减少了传输转发表的时间。 构成：如果分布式路由器系统开始运行（S301），则路由处理板生成转发表（S302），并通过在转发表上增加用于转发表和大小值信息的CRC值来配置转发表（S303）。 路由处理板向转发表添加UDP报头（S304），并添加用于广播目的地地址的以太网报头（S305）。 路由处理板将包括UDP报头和以太网报头的转发表发送到IPC板（S306）。 IPC板检查接收到的转发表的目的地地址，识别转发表将被广播，并且将转发表广播到所有LP板（S307）。

公开(公告)号：KR100440572B1

公开(公告)日：2004-07-21

申请号：KR1020010084082

申请日：2001-12-24

Applicant: 한국전자통신연구원

Inventor： 이상우 ,  이형섭 ,  이형호

IPC: H04L12/50

Abstract: PURPOSE: A system for clock synchronization between duplexing switch boards and line connection boards is provided to select synchronous clocks of an active switch board in each line connection board according to control signals outputted from the switch boards, thereby implementing clock synchronization between the duplexing switch boards and each of the line connection boards. CONSTITUTION: Each of switch boards(210,220) comprises as follows. Switching units(211,221) perform switching processes, generate control signals showing duplexing states by exchanging duplexing control signals between the switch boards(210,220), and output the control signals to many line connection boards(230,240). Clock circuits(212,222) generate synchronous clocks by using predetermined synchronous reference clocks, and output the synchronous clocks to the line connection boards(230,240). Each of the line connection boards(230,240) comprises as follows. Synchronous clock selectors(231,241) receive the control signals and the synchronous clocks, decide the control signals of each of the switch boards(210,220), and select synchronous clocks outputted from an active switch board. Interface functional units(232,242) perform line interfacing processes by using the selected synchronous clocks.

Abstract translation: 目的：提供一种双工交换板和线路连接板之间时钟同步的系统，根据交换板输出的控制信号，选择每个线路连接板上的主用交换板的同步时钟，实现双工交换板之间的时钟同步 和每个线路连接板。 组成：每个交换板（210,220）包括如下。 切换单元（211,221）执行切换过程，通过在交换板（210,220）之间交换双工控制信号来产生示出双工状态的控制信号，并将控制信号输出到多个线路连接板（230,240）。 时钟电路（212,222）通过使用预定的同步参考时钟产生同步时钟，并将同步时钟输出到线路连接板（230,240）。 每个线路连接板（230,240）包括如下。 同步时钟选择器（231,241）接收控制信号和同步时钟，确定每个开关板（210,220）的控制信号，并选择从有源开关板输出的同步时钟。 接口功能单元（232,242）通过使用选择的同步时钟来执行线路接口处理。

公开(公告)号：KR100440571B1

公开(公告)日：2004-07-21

申请号：KR1020010084081

申请日：2001-12-24

Applicant: 한국전자통신연구원

Inventor： 이상우 ,  이강복 ,  이형섭 ,  이형호

IPC: H04L7/00

Abstract: PURPOSE: A system for clock synchronization between a dual switch board and a line connection board is provided, which achieves clock synchronization between the switch board and the line connection board, and supplies a stable clock to each line connection board. CONSTITUTION: The system comprises two dual switch boards(210,220) performing switching according to a switching signal and a plurality of line connection boards(230,240) connected to the switch boards by a signal line to transmit a synchronous clock. Each switch board includes a switching part(211,221) performing switching according to the switching signal and generating a control signal indicating dual state by exchanging the dual control signal between each switch board, and a synchronous clock circuit part(212,222) generating a self clock using a clock generated by an external synchronous reference clock or a clock generated by self oscillation and then supplying it to the switching part. The synchronous clock circuit part generates a synchronous clock using the clock generated by self oscillation or the external synchronous reference clock only when the present switching board is in an active state, and supplies the generated synchronous clock to the plurality of line connection boards through the signal line.

Abstract translation: 目的：提供双交换板和线路连接板之间的时钟同步系统，实现交换板和线路连接板之间的时钟同步，并为每个线路连接板提供稳定的时钟。 构成：系统包括根据切换信号执行切换的两个双交换板（210,220）和通过信号线连接到交换板的多个线路连接板（230,240）以传送同步时钟。 每个开关板包括根据开关信号执行开关并且通过在每个开关板之间交换双重控制信号来生成指示双重状态的控制信号的开关部件（211,221），以及使用生成自身时钟的同步时钟电路部件（212,222） 由外部同步参考时钟产生的时钟或由自振产生的时钟，然后将其提供给切换部分。 同步时钟电路部分仅在当前开关板处于激活状态时使用由自激振荡产生的时钟或外部同步参考时钟产生同步时钟，并且通过信号将产生的同步时钟提供给多个线路连接板 线。

公开(公告)号：KR1020040054349A

公开(公告)日：2004-06-25

申请号：KR1020020081380

申请日：2002-12-18

Applicant: 한국전자통신연구원

Inventor： 김용태 ,  이강복 ,  이형섭 ,  이형호

IPC: H04N21/2343 ,  H04H20/69

CPC classification number: H04N21/4405 ,  H04N7/17318 ,  H04N21/2347 ,  H04N21/235 ,  H04N21/435 ,  H04N21/4622 ,  H04N21/47202 ,  H04N21/4782 ,  H04N21/6125

Abstract: PURPOSE: A digital broadcasting system for a passive optical network(PON) is provided to receive digital broadcasting by using an existing Ethernet network and an Ethernet PON access network and apply an ONU(Optical Network Unit) located at the region which is crowded with users densely to the digital broadcasting. CONSTITUTION: An ONU(400) is comprised of a WDM(Wavelength Division Multiplexing) filter(403), a physical layer and an MAC(Medium Access Protocol) layer of an E-PON(404), an Ethernet switch(405), a physical layer and a broadcasting MAC layer of an E-PON(406), a digital broadcasting processing unit(409) and a channel requisition processing unit(410). The ONU(400) functions as a matching unit of an OLT(Optical Line Terminal) and a splitter(350) for transmitting digital broadcasting Ethernet frame and data Ethernet frame which have other wavelengths through one line. Data Ethernet frame is inputted to the Ethernet switch(405) through the physical layer and the MAC layer of the E-PON(404). Digital broadcasting Ethernet frame is changed into the MPEG stream type through the physical layer and the broadcasting MAC layer of the E-PON(406) and then inputted to the digital broadcasting processing unit(409).

Abstract translation: 目的：提供一种用于无源光网络（PON）的数字广播系统，通过使用现有以太网和以太网PON接入网络接收数字广播，并应用位于拥挤用户区域的ONU（Optical Network Unit，光网络单元） 密集到数字广播。 构成：ONU（400）由E-PON（404）的WDM（波分复用）​​滤波器（403），物理层和MAC（媒体接入协议）层，以太网交换机（405）， E-PON（406）的物理层和广播MAC层，数字广播处理单元（409）和信道请求处理单元（410）。 ONU（400）作为OLT（Optical Line Terminal，光线路终端）和分离器（350）的匹配单元，用于通过一行发送具有其他波长的数字广播以太网帧和数据以太网帧。 数据以太网帧通过物理层和E-PON的MAC层（404）输入到以太网交换机（405）。 数字广播以太网帧通过物理层和E-PON的广播MAC层（406）改变为MPEG流类型，然后被输入到数字广播处理单元（409）。

公开(公告)号：KR1020040046403A

公开(公告)日：2004-06-05

申请号：KR1020020074330

申请日：2002-11-27

Applicant: 한국전자통신연구원

Inventor： 이상연 ,  이형섭 ,  이형호

IPC: H04L12/42 ,  H04L12/811

CPC classification number: H04L12/4637 ,  H04L45/20 ,  H04L47/10

Abstract: PURPOSE: A transmit control method in a network structure based on dual rings is provided to calculate an equitable transmit rate of nodes based on the number of packets of a transmit buffer in each node, thereby remarkably improving link usage efficiency and equitable properties. CONSTITUTION: A system confirms whether nodes are congested(500). If so, the system confirms whether a received equitable transmit rate is null and the number of packets of a transmit buffer is smaller than a threshold value(501). If not, a lower node confirms a value of the received equitable transmit rate and compares whether a transmit rate of the nodes is smaller than the received equitable transmit rate(503). If so, the system transmits a transmit rate of a current node to an upper node(504). If the transmit rate is not smaller, the system controls the transmit rate of the current node and transmits the equitable transmit rate of the lower node to the upper node(505).

Abstract translation: 目的：提供一种基于双环的网络结构中的发送控制方法，根据每个节点的发送缓冲区数量，计算节点的公平发送速率，从而显着提高链路使用效率和公平性。 规则：系统确认节点是否拥塞（500）。 如果是，则系统确认接收到的公平发送速率是否为零，并且发送缓冲器的分组数量是否小于阈值（501）。 如果不是，则下级节点确认接收到的公平发送速率的值，并比较节点的发送速率是否小于接收到的公平发送速率（503）。 如果是，则系统向当前节点发送当前节点的发送速率（504）。 如果发送速率不小，则系统控制当前节点的发送速率，并将下级节点的公平发送速率发送给上级节点（505）。

公开(公告)号：KR1020040045673A

公开(公告)日：2004-06-02

申请号：KR1020020073519

申请日：2002-11-25

Applicant: 한국전자통신연구원

Inventor： 이상우 ,  이형섭 ,  이형호

IPC: H04L12/42

CPC classification number: H04L45/125 ,  H04L12/42 ,  H04L47/10 ,  H04L47/11 ,  H04L47/263 ,  Y02D50/10

Abstract: PURPOSE: A node system, a dual ring communication system using the same and its communicating method are provided to effectively control congestion occurring as each node transmits packets. CONSTITUTION: If bandwidth occupied by packets which a node 4(104) transfers is too much to transmit packets as many as desired, congestion information packets are transferred in a direction opposite to a data packet flow(S1). A node 3(103), which has been contributed to congestion, adds its congestion-related information to the congestion information packets transferred from the node 4(104) and transfers it to a node 2(102)(S2). The node 2(102), which has not been contributed to congestion, transfers the received congestion information packets to a node 1(101)(S3). The node 1(101), which has been contributed to congestion, allocates bands on the basis of its congestion-related information and the received information on the congestion-related packets, sends corresponding result carried on band allocation packets in the same direction as the data packet flow(S4). The band allocation packets are transferred to the congestion-occurred nodes(103,104) and the nodes(103,104) set the bandwidths allocated to them as maximum transmission bandwidths, and lower their packet transmission rate(S5,S6).

Abstract translation: 目的：提供一种节点系统，使用该节点系统的双环通信系统及其通信方法，以有效地控制每个节点发送分组时发生的拥塞。 构成：如果节点4（104）传输的分组所占用的带宽太多，不能按需要传输数据包，拥塞信息分组将以与数据分组流相反的方向传输（S1）。 已经为拥塞贡献的节点3（103）将其拥塞相关信息添加到从节点4（104）传送的拥塞信息分组，并将其传送到节点2（102）（S2）。 尚未对拥塞贡献的节点2（102）将接收到的拥塞信息分组传送到节点1（101）（S3）。 已经为拥塞贡献的节点1（101）根据其拥塞相关信息和接收到的关于拥塞相关分组的信息分配带，将与频带分配分组携带的相应结果沿与 数据包流（S4）。 频带分配分组被传送到拥塞发生的节点（103,104），并且节点（103,104）将分配给它们的带宽设置为最大传输带宽，并降低其分组传输速率（S5，S6）。

公开(公告)号：KR1020040037827A

公开(公告)日：2004-05-07

申请号：KR1020020066485

申请日：2002-10-30

Applicant: 한국전자통신연구원

Inventor： 신동범 ,  이형섭 ,  이형호

IPC: H04L12/28

CPC classification number: H04L45/44 ,  H04L45/54 ,  H04L45/745

Abstract: PURPOSE: A method for transceiving a forwarding table of a distributed router system is provided to simultaneously transmit a forwarding table to all LP boards from a routing process board in a UDP/IP/broadcast method when driving an initial system, and to apply a TCP/IP/unicast method when transmitting the table to an LP board having an error and a newly inserted LP board, thereby reducing time for transmitting the forwarding table. CONSTITUTION: If a distributed router system starts operating(S301), a routing process board generates a forwarding table(S302) and configures the forwarding table by adding CRC values for both the forwarding table and size value information on the forwarding table(S303). The routing process board adds a UDP header to the forwarding table(S304), and adds an Ethernet header for broadcasting a destination address(S305). The routing process board transmits the forwarding table where the UDP header and the Ethernet header are included to an IPC board(S306). The IPC board checks the destination address of the received forwarding table, recognizes that the forwarding table is to be broadcasted, and broadcasts the forwarding table to all LP boards(S307).

Abstract translation: 目的：提供一种用于收发分布式路由器系统的转发表的方法，用于当驱动初始系统时，以UDP / IP /广播方式从路由进程板向所有LP板同时发送转发表，并应用TCP / IP /单播方式发送到具有错误的LP板和新插入的LP板时，从而减少发送转发表的时间。 规定：如果分布式路由器系统开始运行（S301），路由处理板生成转发表（S302），并通过在转发表上添加转发表和大小值信息的CRC值来配置转发表（S303）。 路由处理板向转发表添加UDP报头（S304），并添加用于广播目的地地址的以太网报头（S305）。 路由处理板将UDP报头和以太网报头的转发表发送到IPC板（S306）。 IPC板检查接收到的转发表的目的地址，识别出转发表要广播，并将转发表广播到所有LP板（S307）。

公开(公告)号：KR1020030093742A

公开(公告)日：2003-12-11

申请号：KR1020020031585

申请日：2002-06-05

Applicant: 한국전자통신연구원

Inventor： 신동범 ,  이형섭 ,  이형호 ,  이상연 ,  김환우

IPC: H04L12/28

CPC classification number: H04L45/60 ,  H04L45/02 ,  H04L45/586

Abstract: PURPOSE: A high speed router system capable of transmitting an IPC(Inter Processor Communication) message having high reliability is provided to enable 2 RP(Router Processor) boards mounted in a high speed router to simultaneously receive messages from many LP(Linecard Processor) boards, thereby minimizing duplexing data to be transmitted between the RP boards. CONSTITUTION: An IPC board(13) switches a transmission path of an IPC message. A switch board(14) switches a transmission path of user data. Active RP boards(10,11) manage a high speed router system, process a routing protocol, and receive or transmit the IPC message through the IPC board(13). Many LP boards(12a-12d) decide whether data received from an external network is the IPC message or the user data, transmit the received data to the IPC board(13) or the switch board(14) according to a decided result, and receive the IPC message transmitted from the active RP boards(10,11) through the IPC board(13).

Abstract translation: 目的：提供一种能够传输具有高可靠性的IPC（Inter Processor Communication）消息的高速路由器系统，使得安装在高速路由器中的2个RP（路由器处理器）板同时接收来自许多LP（Linecard Processor）板的消息 从而最小化要在RP板之间传输的双工数据。 规定：IPC板（13）切换IPC消息的传输路径。 开关板（14）切换用户数据的传输路径。 主动RP板（10,11）管理高速路由器系统，处理路由协议，并通过IPC板（13）接收或发送IPC消息。 许多LP板（12a-12d）决定从外部网络接收的数据是IPC消息还是用户数据，根据决定的结果将接收的数据发送到IPC板（13）或交换板（14），以及 通过IPC板（13）接收从主动RP板（10,11）发送的IPC消息。

公开(公告)号：KR1020030079278A

公开(公告)日：2003-10-10

申请号：KR1020020018219

申请日：2002-04-03

Applicant: 한국전자통신연구원

Inventor： 윤빈영 ,  김봉완 ,  이형섭 ,  이형호 ,  이민형 ,  임종윤

IPC: H04L12/935 ,  H04L12/771

CPC classification number: H04L49/25 ,  H04L45/56 ,  H04L49/10 ,  H04L49/30

Abstract: PURPOSE: A packet processor for supporting a CSIX-L1(Common Switch Interface Specification-Level 1) interface is provided so as to be compatible with a switch fabric manufactured by another company. CONSTITUTION: A packet processor(300k) for supporting a CSIX-L1 interface consists of a lookup processor(320) and a traffic processor(340). The lookup processor(320) executes the discrimination of packet types and the determination of output ports. The traffic processor(340) provides an interface function to a switch fabric, and manages traffics according to output switch ports. The lookup processor(320) is divided into a data transmitting part and a data receiving part according to packet transfer directions. The data receiving part, composed of an input interface circuit(321), an input parsing part(322), an input search part(323), and an input modification part(324), receives packets from a physical link interface part and transfers them to the traffic processor(340). The data transmitting part, composed of an output interface part, transfers packets, transferred from the traffic processor(340), to the physical link interface part.

Abstract translation: 目的：提供用于支持CSIX-L1（通用交换机接口规范级别1）接口的数据包处理器，以便与另一家公司制造的交换矩阵兼容。 构成：用于支持CSIX-L1接口的分组处理器（300k）由查找处理器（320）和业务处理器（340）组成。 查找处理器（320）执行分组类型的鉴别和输出端口的确定。 业务处理器（340）为交换机结构提供接口功能，并根据输出交换机端口管理业务。 根据分组传送方向，查找处理器（320）被分成数据发送部分和数据接收部分。 由输入接口电路（321），输入解析部分（322），输入搜索部分（323）和输入修改部分（324）组成的数据接收部分从物理链路接口部分接收分组并传送 他们到交通处理器（340）。 数据发送部分由输出接口部分组成，将从业务处理器（340）传送的数据包传送到物理链路接口部分。