公开(公告)号：US20110044162A1

公开(公告)日：2011-02-24

申请号：US12862279

申请日：2010-08-24

Applicant: Jeong-dong RYOO ,  Kyu Sang LEE ,  Susang YOO

Inventor： Jeong-dong RYOO ,  Kyu Sang LEE ,  Susang YOO

IPC: G06F11/00

CPC classification number: H04L12/437 ,  H04L49/505

Abstract: A method in which a node of an Ethernet ring network flushes a filtering database includes operating a timer for delaying flushing of the filtering database when a topology of the ring network is changed, and flushing the filtering database when the timer is terminated. A method in which a node of an Ethernet ring network flushes a filtering database includes flushing the filtering database after receiving a protection switching frame that requests flushing of the filtering database, and forwarding a data frame in a queue state at a node and then forwarding the protection switching frame to an adjacent node. A method in which a node of an Ethernet ring network flushes a filtering database includes flushing the filtering database after receiving a protection switching frame that requests flushing of the filtering database, and deleting a data frame in a queue state at the node.

Abstract translation: 以太网环网的节点刷新过滤数据库的方法包括操作定时器，用于当环网的拓扑改变时延迟过滤数据库的刷新，并且在定时器终止时刷新过滤数据库。 以太网环网的节点刷新过滤数据库的方法包括：在接收到请求冲洗过滤数据库的保护倒换帧之后刷新过滤数据库，并在节点转发处于队列状态的数据帧，然后转发 保护切换帧到相邻节点。 以太网环网的节点刷新过滤数据库的方法包括在接收到请求冲洗过滤数据库的保护倒换帧，以及在节点处删除队列状态的数据帧时刷新过滤数据库。

公开(公告)号：US20110044166A1

公开(公告)日：2011-02-24

申请号：US12858862

申请日：2010-08-18

Applicant: Sang-Min LEE ,  Jeong-dong RYOO ,  Daeub KIM

Inventor： Sang-Min LEE ,  Jeong-dong RYOO ,  Daeub KIM

IPC: G08C15/00

CPC classification number: H04L12/437

Abstract: A ring protection link (RPL) owner node in a ring network transmits a ring-automatic protection switching (R-APS) frame in a burst mode until blocked ports of all nodes except the RPL owner node have been unblocked, and, if it is determined that all the nodes have been unblocked, transmits the R-APS frame in a continuous mode. In this manner, the time required to unblock all the nodes can be reduced.

Abstract translation: 环网中的环网保护链路（RPL）所有者节点以突发模式发送环路自动保护倒换（R-APS）帧，直到除RPL所有者节点以外的所有节点的阻塞端口被解除阻塞，如果是 确定所有节点已被解除阻塞，以连续模式发送R-APS帧。 以这种方式，可以减少解锁所有节点所需的时间。

公开(公告)号：US20100302967A1

公开(公告)日：2010-12-02

申请号：US12789850

申请日：2010-05-28

Applicant: Sang-Min LEE ,  Jeong-dong RYOO ,  Daeub KIM ,  Jea Hoon YU ,  Tae Whan YOO

Inventor： Sang-Min LEE ,  Jeong-dong RYOO ,  Daeub KIM ,  Jea Hoon YU ,  Tae Whan YOO

IPC: H04L12/26

CPC classification number: H04L12/437 ,  H04L12/42 ,  H04L43/0852

Abstract: A node generates a delay measurement frame and transmits it to an adjacent node of an Ethernet ring network in order to measure a delay of the network. The node receives the delay measurement frame generated by the node from another adjacent node of the ring network, and measures a network delay by using the received delay measurement frame.

Abstract translation: 节点生成延迟测量帧并将其发送到以太网环网的相邻节点，以便测量网络的延迟。 节点从环网的另一相邻节点接收节点生成的延迟测量帧，并通过使用接收的延迟测量帧来测量网络延迟。

公开(公告)号：US20100290340A1

公开(公告)日：2010-11-18

申请号：US12774859

申请日：2010-05-06

Applicant: Kwang Koog LEE ,  Jeong-dong RYOO ,  Sang-Min LEE ,  Daeub KIM ,  Jea Hoon YU ,  Tae Whan YOO

Inventor： Kwang Koog LEE ,  Jeong-dong RYOO ,  Sang-Min LEE ,  Daeub KIM ,  Jea Hoon YU ,  Tae Whan YOO

IPC: H04L12/56 ,  G06F11/00

CPC classification number: H04L45/00 ,  H04L12/437 ,  H04L45/02 ,  H04L45/28

Abstract: A method for protection switching of a ring network, which includes a plurality of nodes disposed in a ring shape, includes: allowing a node adjacent to a failure link among the plurality of nodes to generate a failure protection switching frame when the failure link is generated in the ring network; allowing the node adjacent to the failure link to transmit the failure protection switching frame to an adjacent node; allowing each of the plurality of nodes to delete address lists connected with the ring network except for an external network (hereinafter referred to as subnet) from their own forwarding table; allowing each of the plurality of nodes to transmit a subnet address list protection switching frame including a subnet address list; and allowing a node receiving the subnet address list protection switching frame to update the forwarding table on the basis of the subnet address list included in the frame.

Abstract translation: 一种环形网络的保护倒换方法，包括以环形形式设置的多个节点，包括：当产生故障链路时允许与多个节点之间的故障链路相邻的节点产生故障保护倒换帧 在环网中; 允许与故障链路相邻的节点将故障保护倒换帧发送到相邻节点; 允许所述多个节点中的每一个从其自己的转发表中删除除了外部网络（以下称为子网）之外的与所述环网相连的地址列表; 允许所述多个节点中的每一个发送包括子网地址列表的子网地址列表保护切换帧; 并且允许接收子网地址列表保护倒换帧的节点根据包括在该帧中的子网地址列表来更新转发表。