公开(公告)号：US20190104073A1

公开(公告)日：2019-04-04

申请号：US16143966

申请日：2018-09-27

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Chang Ho CHOI ,  Tae Kyu KANG ,  Jeong Dong RYOO ,  Tae Sik CHEUNG

IPC: H04L12/851 ,  H04W28/06 ,  H04W72/04 ,  H04L12/841

Abstract: A frame transmission controlling apparatus includes: a list configuration unit managing a parameter related to a gate control; a cycle timer unit managing a start timing of a cycle; a list executing unit performing the gate control based on the parameter, wherein the list executing unit includes: a cycle executing state machine setting an expiration time of at least one section included in the cycle, checking gate operation information corresponding to a list pointer indicating the at least one section, and performing a control corresponding to the gate operation information; a delaying state machine deducting and updating the expiration time by a predetermined unit; a cycle holding state machine generating a control signal indicating stopping transmission in MAC; and a cycle releasing state machine generating a control signal indicating resuming the transmission in MAC.

公开(公告)号：US20140328164A1

公开(公告)日：2014-11-06

申请号：US14263256

申请日：2014-04-28

Applicant: Electronics and Telecommunications Research Institute

Inventor： Dae Ub KIM ,  Jeong Dong RYOO ,  Tae Sik CHEUNG

IPC: H04L12/24 ,  H04L12/707

CPC classification number: H04L45/22 ,  H04L41/0663 ,  H04L45/02 ,  H04L45/28 ,  H04L45/48

Abstract: A method of operating a root node in a multipoint-connection with a plurality of leaf nodes, the method including transmitting/receiving traffic with the plurality of leaf nodes via a working path, receiving, from a leaf node, a message indicating an occurrence of a failure on a path of the leaf node from among the plurality of leaf nodes, recognizing an occurrence of a local failure on the path connected to the leaf node, and transmitting information about the failure to the leaf node.

Abstract translation: 一种操作与多个叶节点的多点连接中的根节点的方法，所述方法包括经由工作路径与所述多个叶节点发送/接收业务，从叶节点接收指示发生 在多个叶节点之间的叶节点的路径上的故障，识别在连接到叶节点的路径上发生本地故障，并将关于故障的信息发送到叶节点。

公开(公告)号：US20160344630A1

公开(公告)日：2016-11-24

申请号：US15160445

申请日：2016-05-20

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Won Kyoung LEE ,  Jeong Dong RYOO ,  Tae Sik CHEUNG

IPC: H04L12/741 ,  H04L29/12 ,  H04L12/713 ,  H04L12/723 ,  H04L29/06

CPC classification number: H04L45/745 ,  H04L41/0668 ,  H04L43/0811 ,  H04L45/22 ,  H04L45/50 ,  H04L45/586 ,  H04L49/00

Abstract: Provided is a packet transmission apparatus including at least one user network interface (UNI) line card configured to receive traffic including a client signal, a fabric switch configured to perform switching on the traffic based on a unit of line card, a network-to-network interface working (NNI-W) line card configured to generate a multiprotocol label switching-transport profile (MPLS-TP) working tunnel to transmit the traffic transferred through the fabric switch, and a network-to-network interface protection (NNI-P) line card configured to generate a MPLS-TP protection tunnel to transmit the traffic transferred through the fabric switch when a fault occurs on a path of the NNI-W line card.

Abstract translation: 提供了一种分组传输装置，包括：至少一个用户网络接口（UNI）线路卡，被配置为接收包括客户端信号的业务，配置为基于线卡单元对业务进行交换的网络交换机， 网络接口工作（NNI-W）线路卡，用于生成多协议标签交换传输配置文件（MPLS-TP）工作隧道，传输通过Fabric交换机传输的流量，以及网络到网络接口保护（NNI-P ）线卡，用于生成MPLS-TP保护隧道，以在NNI-W线路卡的路径上发生故障时传输通过Fabric交换机传输的流量。

公开(公告)号：US20160142286A1

公开(公告)日：2016-05-19

申请号：US14945945

申请日：2015-11-19

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Dae Ub KIM ,  Jeong Dong RYOO ,  Tae Sik CHEUNG

IPC: H04L12/707

CPC classification number: H04L45/22 ,  H04L45/28

Abstract: Provided is an operation method of a node, the method including recognizing multiple failures occurring in a protected domain, transmitting a message including failure information, multiple-failure information, and used path information to a second node when the multiple failures are recognized, and performing a protection switching to a used path determined based on a priority for each of the multiple failures.

Abstract translation: 提供了一种节点的操作方法，该方法包括识别在受保护域中发生的多个故障，当识别出多个故障时，将包括故障信息，多故障信息和所使用的路径信息的消息发送到第二节点，并且执行 基于针对每个多个故障的优先级确定的对所使用路径的保护切换。

公开(公告)号：US20150109900A1

公开(公告)日：2015-04-23

申请号：US14514822

申请日：2014-10-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Dae Ub KIM ,  Jeong Dong RYOO ,  Tae Sik CHEUNG

IPC: H04L12/24 ,  H04L12/703 ,  H04L12/707

CPC classification number: H04L41/0663 ,  H04L45/22 ,  H04L45/28

Abstract: Provided is a linear protection switching method of a node, wherein the method includes selecting a local request based on a priority of at least one local request, determining a global request based on a priority between the selected local request and a remote message, and performing a state transition based on the global request.

Abstract translation: 提供了一种节点的线性保护切换方法，其中所述方法包括基于至少一个本地请求的优先级来选择本地请求，基于所选择的本地请求和远程消息之间的优先级来确定全局请求，并且执行 基于全局请求的状态转换。

公开(公告)号：US20140328165A1

公开(公告)日：2014-11-06

申请号：US14269538

申请日：2014-05-05

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jeong Dong RYOO ,  Tae Sik CHEUNG ,  Dae Ub KIM

IPC: H04L12/703 ,  H04W40/24

CPC classification number: H04L45/28 ,  H04L45/22 ,  H04L45/48 ,  H04L45/62

Abstract: A method of operating a root node in which the root node transmits/receives traffic with a plurality of leaf nodes through a plurality of working paths is disclosed, the method including receiving, from a first leaf node, a first signal failure (SF) message indicating an occurrence of a failure on a first working path of the first leaf node, receiving traffic from the first leaf node by switching the first working path to a first protection path, and receiving traffic from remaining leaf nodes aside from the first leaf node while maintaining the working path.

Abstract translation: 公开了一种操作根节点的方法，其中根节点通过多个工作路径发送/接收具有多个叶节点的业务，该方法包括从第一叶节点接收第一信号故障（SF）消息 指示在第一叶节点的第一工作路径上出现故障，通过将第一工作路径切换到第一保护路径来接收来自第一叶节点的业务，以及从除第一叶节点之外的剩余叶节点接收业务， 维护工作路径。

公开(公告)号：US20140036927A1

公开(公告)日：2014-02-06

申请号：US14054092

申请日：2013-10-15

Applicant: Electronics And Telecommunications Research Institute

Inventor： Do Yeon KIM ,  Tae Sik CHEUNG ,  Byung Jun AHN ,  Bong Tae KIM

IPC: H04L12/707

CPC classification number: H04L45/22 ,  H04L12/413 ,  H04L12/437 ,  H04L41/00

Abstract: Provided are a forced protection switching method and a forced protection switching clearing method in an Ethernet ring network. When an operator desires to block a port of a specific node for maintenance and repair, the operator gives a forced switching (FS) command to the specific node in order to block the port. When the operator desires to clear FS, the operator gives a clear command to the specific node in order to clear the blocked port. As a result, operation flexibility of the Ethernet ring network is provided.

Abstract translation: 以太网环网中提供了强制保护倒换方法和强制保护切换清除方法。 当操作员希望阻止特定节点的端口进行维护和修复时，操作员向特定节点提供强制切换（FS）命令以阻止端口。 当操作员希望清除FS时，操作员向特定节点发出明确的命令，以清除阻塞的端口。 结果，提供了以太网环网的操作灵活性。

公开(公告)号：US20250150372A1

公开(公告)日：2025-05-08

申请号：US18937322

申请日：2024-11-05

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jinoo JOUNG ,  Ju Hyeok KWON ,  Jeong Dong RYOO ,  Tae Sik CHEUNG

IPC: H04L43/0876 ,  H04L47/2441

Abstract: According to an aspect of the present disclosure, there is provided a method for estimating a total link service rate using packet metadata, the method comprising: extracting a packet satisfying a predetermined condition from each flow; extracting a link service rate from metadata of the extracted packet; and estimating a total link service rate based on the extracted link service rate, wherein the packet satisfying the predetermined condition is determined based on an estimation reference time and finish times of consecutive packets, and wherein the finish times indicates ideal transmission finish times of the packets.

公开(公告)号：US20170229800A1

公开(公告)日：2017-08-10

申请号：US15236756

申请日：2016-08-15

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Chang Ho CHOI ,  Tae Sik CHEUNG ,  Woo Young CHOI

IPC: H01R12/73 ,  H05K7/14

CPC classification number: H01R12/737 ,  H05K7/1445

Abstract: A midplane communication system includes: a midplane; at least one front daughter card configured to connect to a front side of the midplane; at least one rear daughter card configured to connect to a rear side of the midplane in a vertical direction relative to the front daughter card; and an orthogonal connector configured to electrically connect the front daughter card and the rear daughter card, wherein the orthogonal connector is configured to connect to the midplane at a vertical or horizontal offset to include at least one extra connection pin allowing an additional connection when connecting the front daughter card and the rear daughter card.

公开(公告)号：US20160149802A1

公开(公告)日：2016-05-26

申请号：US14926273

申请日：2015-10-29

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Ji Wook YOUN ,  Jeong Dong RYOO ,  Tae Sik CHEUNG ,  Ho Geon KIM ,  Seung Woo LEE

IPC: H04L12/707 ,  H04Q11/00

CPC classification number: H04L45/22 ,  H04J3/14 ,  H04J3/1652 ,  H04J2203/006 ,  H04L45/28

Abstract: A communication terminal performing protection switching in a shared mesh network is provided. The communication terminal configured to transmit and receive data traffic associated with a first working path may include a processor configured to encode, in an optical channel data unit (ODU) including the data traffic, a first operation command message to be received from a first end node, and a communicator configured to transmit the ODU to a neighboring node, in which the first end node is present in a second working path.

Abstract translation: 提供了在共享网状网络中执行保护倒换的通信终端。 被配置为发送和接收与第一工作路径相关联的数据业务的通信终端可以包括处理器，其被配置为在包括数据业务的光信道数据单元（ODU）中对从第一端接收的第一操作命令消息进行编码 节点和通信器，其被配置为将ODU发送到相邻节点，其中第一端节点存在于第二工作路径中。