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1. 发明授权

US07983150B2 VPLS failure protection in ring networks 有权
标题翻译：环网中的VPLS故障保护
公开(公告)号：US07983150B2
公开(公告)日：2011-07-19
申请号：US11335770
申请日：2006-01-18
申请人： Leon Bruckman , Moran Roth , Ron Sdayoor
发明人： Leon Bruckman , Moran Roth , Ron Sdayoor
IPC分类号： H04J1/16 , H04L12/28
CPC分类号： H04L12/4641 , H04L12/437 , H04L12/462
摘要： A method for communication over a bi-directional ring network includes provisioning a virtual private local area network service (VPLS) over the bi-directional ring network. The VPLS includes connection termination points provisioned respectively on a plurality of the nodes so as to connect each of the plurality of the nodes to a second network external to the ring network. As long as the nodes and spans are fully operational, one or more of the connection termination points are maintained in a deactivated state, so that no more than one of the connection termination points to the second network is active. The nodes exchange messages indicative of a failure associated with the bi-directional ring network, causing at least one of the deactivated connection termination points to be activated so as to maintain connectivity among the users of the VPLS without creating a loop in the VPLS via the second network.
摘要翻译：一种用于通过双向环网通信的方法包括通过双向环网提供虚拟专用局域网服务（VPLS）。 VPLS包括分别在多个节点上提供的连接终止点，以便将多个节点中的每一个连接到环形网络外部的第二网络。只要节点和跨度完全可操作，则一个或多个连接终止点被维持在去激活状态，使得不超过一个到第二网络的连接终端点是活动的。节点交换指示与双向环网相关联的故障的消息，导致至少一个停用连接终端点被激活，以便维持VPLS的用户之间的连接，而不经由VPLS中的环路创建第二网络。

2. 发明授权

US07974223B2 Virtual private LAN service over ring networks 有权
标题翻译：环网上的虚拟专用局域网服务
公开(公告)号：US07974223B2
公开(公告)日：2011-07-05
申请号：US10993882
申请日：2004-11-19
申请人： David Zelig , Leon Bruckman , Ronen Solomon , Uzi Khill , Gal Mor
发明人： David Zelig , Leon Bruckman , Ronen Solomon , Uzi Khill , Gal Mor
IPC分类号： H04L12/28
CPC分类号： H04L45/50 , H04L12/42 , H04L12/462
摘要： A method for communication via a ring network that includes a plurality of nodes. The method includes receiving at a first node in the ring network a data packet transmitted over a virtual private LAN service (VPLS), the data packet including an identification of the VPLS. The first node reads the identification from the data packet. Responsively to reading the identification, the first node forwards the data packet to at least one second node in the ring network that is associated with the VPLS.
摘要翻译：一种用于经由包括多个节点的环网的通信的方法。该方法包括在环网中的第一节点处接收通过虚拟专用LAN服务（VPLS）发送的数据分组，所述数据分组包括VPLS的标识。第一个节点从数据包中读取标识。响应于读取标识，第一节点将数据分组转发到与VPLS相关联的环网中的至少一个第二节点。

3. 发明授权

US07876673B2 Prevention of frame duplication in interconnected ring networks 有权
标题翻译：防止互连环网中的帧复制
公开(公告)号：US07876673B2
公开(公告)日：2011-01-25
申请号：US12044158
申请日：2008-03-07
申请人： Rafi Ram , Leon Bruckman , Ronen Solomon , Gideon Agmon
发明人： Rafi Ram , Leon Bruckman , Ronen Solomon , Gideon Agmon
IPC分类号： H04J1/16 , H04L12/28
CPC分类号： H04L12/42 , H04L12/4625 , H04L12/4641
摘要： A method for communication includes, in a communication network that includes multiple ring nodes arranged in at least first and second ring networks that are connected by two or more of the ring nodes serving as interconnect nodes, accepting at the two or more interconnect nodes respective copies of a data packet, which is sent from a source user node connected to the first ring network.An attribute is extracted from the respective copies of the data packet at each of the interconnect nodes, and a predefined mapping function is applied to the extracted attribute so as to select a single interconnect node for forwarding the data packet to the second ring network. A single copy of the data packet is forwarded to the second ring network only from the selected interconnect node, while refraining from forwarding other copies from the other interconnect nodes.
摘要翻译：一种用于通信的方法包括：在通信网络中，包括布置在至少第一和第二环形网络中的多个环形节点，所述至少第一和第二环形网络由用作互连节点的两个或更多个环形节点连接，在所述两个或更多个互连节点处接受相应的副本从连接到第一环网的源用户节点发送的数据分组。在每个互连节点处从数据分组的相应副本中提取属性，并且将预定映射函数应用于所提取的属性，以便选择用于将数据分组转发到第二环网的单个互连节点。数据包的单个副本仅从所选择的互连节点转发到第二环网，同时避免从其他互连节点转发其他副本。

4. 发明授权

US07660234B2 Fault-tolerant medium access control (MAC) address assignment in network elements 有权
标题翻译：网元中的容错介质访问控制（MAC）地址分配
公开(公告)号：US07660234B2
公开(公告)日：2010-02-09
申请号：US11534556
申请日：2006-09-22
申请人： Shmuel Ilan , Leon Bruckman
发明人： Shmuel Ilan , Leon Bruckman
IPC分类号： G01R31/08 , H04L12/28
CPC分类号： H04L29/12254 , H04L29/12839 , H04L41/0668 , H04L61/2038 , H04L61/6022
摘要： A network element includes a backplane, which includes a backplane memory holding first medium access control (MAC) address values. The network element further includes multiple tributary modules coupled to the backplane, which include network interfaces that are configured to communicate over network trunks using MAC addresses that are respectively assigned to the network interfaces. The network element further includes a common function module (CFM), which communicates with the tributary modules and the backplane memory via the backplane, and which includes a CFM memory holding second MAC address values.The CFM is arranged to assign the MAC addresses to the network interfaces by selecting the MAC addresses from among the first MAC address values when the CFM is able to access the backplane memory, and by selecting the MAC addresses from among the second MAC address values when the CFM is unable to access the backplane memory.
摘要翻译：网络元件包括背板，其包括保持第一介质访问控制（MAC）地址值的背板存储器。网络元件还包括耦合到背板的多个支路模块，其包括被配置为使用分配给网络接口的MAC地址通过网络中继线进行通信的网络接口。网络元件还包括通用功能模块（CFM），其通过背板与支路模块和背板存储器进行通信，并且其包括具有第二MAC地址值的CFM存储器。 CFM被配置为通过在CFM能够访问背板存储器时从第一MAC地址值中选择MAC地址，并且通过从第二MAC地址值中选择MAC地址来分配MAC地址到网络接口，当 CFM无法访问背板内存。

5. 发明授权

US07420922B2 Ring network with variable rate 有权
标题翻译：具有可变速率的环网
公开(公告)号：US07420922B2
公开(公告)日：2008-09-02
申请号：US10387657
申请日：2003-03-12
申请人： Leon Bruckman , Rafi Harel , Muly Ilan
发明人： Leon Bruckman , Rafi Harel , Muly Ilan
IPC分类号： H04J3/22 , H04L12/26 , H04L12/28 , G06F15/16
CPC分类号： H04L41/0889 , H04L12/42 , H04L41/082 , H04L41/0869 , H04L41/0886 , H04L69/24
摘要： A method for changing a network characteristic or capability, such as the communication rate of network segments, software version or protocol. All nodes in the network perform the change synchronously while continuing to communicate within the existing capabilities. A new configuration is downloaded to the nodes, and a manager node exchanges validation messages with the other nodes in order to verify that the nodes can be reconfigured and will be able to complete the process successfully. The manager node then sends a command message to the other nodes to execute the change. In response, the other nodes begin substantially simultaneously to communicate in accordance with the new characteristics and/or capabilities. This method helps to minimize the duration of the upgrade process, while avoiding traffic hits and minimizing abnormal operation that may occur during the upgrade.
摘要翻译：一种改变网络特性或能力的方法，如网段的通信速率，软件版本或协议。网络中的所有节点同时进行更改，同时在现有功能中继续通信。新的配置被下载到节点，并且管理器节点与其他节点交换验证消息，以便验证节点可以被重新配置，并且能够成功地完成该过程。然后，经理节点向其他节点发送命令消息来执行更改。作为响应，其他节点基本上同时开始以根据新特性和/或能力进行通信。此方法有助于最大限度地减少升级过程的持续时间，同时避免流量命中并最大限度地减少升级期间可能发生的异常操作。

6. 发明申请

US20080075082A1 FAULT-TOLERANT MEDIUM ACCESS CONTROL (MAC) ADDRESS ASSIGNMENT IN NETWORK ELEMENTS 有权
标题翻译：网络元素中的容错中介访问控制（MAC）地址分配
公开(公告)号：US20080075082A1
公开(公告)日：2008-03-27
申请号：US11534556
申请日：2006-09-22
申请人： Shmuel Ilan , Leon Bruckman
发明人： Shmuel Ilan , Leon Bruckman
IPC分类号： H04L12/56
CPC分类号： H04L29/12254 , H04L29/12839 , H04L41/0668 , H04L61/2038 , H04L61/6022
摘要： A network element includes a backplane, which includes a backplane memory holding first medium access control (MAC) address values. The network element further includes multiple tributary modules coupled to the backplane, which include network interfaces that are configured to communicate over network trunks using MAC addresses that are respectively assigned to the network interfaces. The network element further includes a common function module (CFM), which communicates with the tributary modules and the backplane memory via the backplane, and which includes a CFM memory holding second MAC address values.The CFM is arranged to assign the MAC addresses to the network interfaces by selecting the MAC addresses from among the first MAC address values when the CFM is able to access the backplane memory, and by selecting the MAC addresses from among the second MAC address values when the CFM is unable to access the backplane memory.
摘要翻译：网络元件包括背板，其包括保持第一介质访问控制（MAC）地址值的背板存储器。网络元件还包括耦合到背板的多个支路模块，其包括被配置为使用分配给网络接口的MAC地址通过网络中继线进行通信的网络接口。网络元件还包括通用功能模块（CFM），其通过背板与支路模块和背板存储器进行通信，并且其包括具有第二MAC地址值的CFM存储器。 CFM被配置为通过在CFM能够访问背板存储器时从第一MAC地址值中选择MAC地址，并且通过从第二MAC地址值中选择MAC地址来分配MAC地址到网络接口，当 CFM无法访问背板内存。

7. 发明申请

US20080016402A1 Connectivity fault management (CFM) in networks with link aggregation group connections 有权
标题翻译：具有链路聚合组连接的网络中的连接故障管理（CFM）
公开(公告)号：US20080016402A1
公开(公告)日：2008-01-17
申请号：US11483650
申请日：2006-07-11
申请人： Rafi Harel , Ronen Solomon
发明人： Rafi Harel , Ronen Solomon
IPC分类号： G06F11/00
CPC分类号： H04L43/10 , H04L1/243 , H04L41/06 , H04L41/26 , H04L43/0811 , H04L45/245 , Y02D50/30
摘要： A maintenance entity for an Ethernet Connectivity Fault Management (CFM) domain. The maintenance entity comprises a port definer module and a connection which is connected to a group of aggregated link. The port definer module examines a designated link of the group by forwarding CFM messages via the designated link.
摘要翻译：用于以太网连接故障管理（CFM）域的维护实体。维护实体包括端口定义模块和连接到一组聚合链路的连接。端口定义器模块通过指定的链路转发CFM消息来检查组的指定链路。

8. 发明申请

US20070268915A1 MAC ADDRESS LEARNING IN A DISTRIBUTED BRIDGE 有权
标题翻译：分布式桥梁中的MAC地址学习
公开(公告)号：US20070268915A1
公开(公告)日：2007-11-22
申请号：US11419444
申请日：2006-05-19
申请人： David Zelig , Leon Bruckman , Ronen Solomon , Zeev Oster , David Rozenberg , Uzi Khill
发明人： David Zelig , Leon Bruckman , Ronen Solomon , Zeev Oster , David Rozenberg , Uzi Khill
IPC分类号： H04L12/56
CPC分类号： H04L12/4625 , H04L12/467 , H04L45/00 , H04L45/742 , H04L49/354
摘要： A method for communication includes configuring a network node having at least first and second line cards, the line cards having respective ports, to operate as a distributed media access control (MAC) bridge in a Layer 2 network. Each of the line cards has a respective forwarding database (FDB). Upon receiving a data packet on a port of the network node from a MAC source address, the data packet is conveyed to at least the first line card for transmission to the MAC destination address. The MAC source address of the data packet is checked against the records in the FDB of the first line card. If the FDB does not contain a record of an association of the MAC source address with the port on which the data packet was received, the record is added to the FDB of the first line card, which sends a message to at least the second line card informing the second line card of the association.
摘要翻译：一种用于通信的方法包括配置具有至少第一和第二线路卡的网络节点，所述线路卡具有相应的端口，以用作第二层网络中的分布式媒体访问控制（MAC）桥接。每个线路卡具有相应的转发数据库（FDB）。在从MAC源地址在网络节点的端口上接收到数据分组时，数据分组被传送到至少第一线路卡以传送到MAC目的地址。根据第一行卡的FDB中的记录检查数据包的MAC源地址。如果FDB不包含MAC源地址与接收数据包的端口的关联的记录，则该记录被添加到第一行卡的FDB，该FDB向至少第二行发送消息卡通知协会的第二线卡。

9. 发明申请

US20070242676A1 INTERFACE BETWEEN A SYNCHRONOUS NETWORK AND HIGH-SPEED ETHERNET 审中-公开
标题翻译：同步网络和高速以太网之间的接口
公开(公告)号：US20070242676A1
公开(公告)日：2007-10-18
申请号：US11279710
申请日：2006-04-13
申请人： Amit Fridman
发明人： Amit Fridman
IPC分类号： H04L12/56
CPC分类号： H04J3/1617 , H04J2203/0085 , H04J2203/0096 , H04L49/90 , H04L49/901 , H04L49/9078
摘要： A method for communication includes receiving over a synchronous optical network link a flow of encapsulated Ethernet data frames. Two or more of the Ethernet data frames are concatenated to form an extended frame having a single start frame delimiter (SFD) and a single end frame delimiter (EFD) in compliance with an Ethernet standard, and the extended frame is transmitted over an Ethernet link.
摘要翻译：一种用于通信的方法包括：在同步光网络上接收封装的以太网数据帧的流。两个或多个以太网数据帧被级联以形成具有符合以太网标准的单个起始帧定界符（SFD）和单个终端帧定界符（EFD）的扩展帧，并且扩展帧通过以太网链路。

10. 发明授权

US07154899B2 Protecting the filtering database in virtual bridges 有权
公开(公告)号：US07154899B2
公开(公告)日：2006-12-26
申请号：US10061721
申请日：2002-02-01
申请人： Uzi Khill
发明人： Uzi Khill
IPC分类号： H04L12/28
CPC分类号： H04L41/16 , H04L12/4625 , H04L12/4641
摘要： A method for budgeted learning of link information in a network includes providing a database to contain the link information, for use by an entity connected to the network in transferring traffic over the network, and setting a maximum rate for addition of entries to the database. New entries to be added to the database are determined responsive to the traffic on the network during a learning period. The new entries are added to the database only if the addition of the entries during the learning period has not exceeded the maximum rate.

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