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11. 发明授权

US07145878B2 Avoiding overlapping segments in transparent LAN services on ring-based networks 有权
标题翻译：避免在基于环网的透明LAN服务中重叠段
公开(公告)号：US07145878B2
公开(公告)日：2006-12-05
申请号：US10054845
申请日：2002-01-25
申请人： Shachar Katz
发明人： Shachar Katz
IPC分类号： H04L12/26
CPC分类号： H04L45/50 , H04L12/42 , H04L12/44 , H04L45/04 , H04L45/18
摘要： A method for eliminating loops in a communication network in which the nodes operate as virtual bridges, having virtual ports that link the virtual bridges over virtual connections, each of the virtual connections coinciding respectively with one or more segments of the network. Respective port costs are assigned to the virtual ports responsive to a count of the network segments with which the respective virtual connections coincide, so as to favor virtual paths between pairs of the nodes that are made up of a greater number of the virtual connections, relative to the virtual paths that are made up of a lesser number of the virtual connections. Respective path costs are computed for the virtual paths, based on the port costs, and the virtual connections over which to send traffic between the virtual bridges are selected responsive to the path costs.
摘要翻译：一种用于消除通信网络中的循环的方法，其中节点作为虚拟网桥运行，具有通过虚拟连接链接虚拟网桥的虚拟端口，每个虚拟连接分别与网络的一个或多个段重合。响应于相应虚拟连接重合的网段的计数，将相应的端口成本分配给虚拟端口，以便有利于由更多数量的虚拟连接组成的节点对之间的虚拟路径，相对到由较少数量的虚拟连接组成的虚拟路径。基于端口成本计算虚拟路径的相应路径成本，并且响应于路径成本来选择在虚拟网桥之间发送流量的虚拟连接。

12. 发明申请

US20060251074A1 Tunnel provisioning with link aggregation 有权
公开(公告)号：US20060251074A1
公开(公告)日：2006-11-09
申请号：US11123801
申请日：2005-05-06
申请人： Ronen Solomon
发明人： Ronen Solomon
IPC分类号： H04L12/28
CPC分类号： H04L45/50 , H04L12/5695 , H04L45/00 , H04L45/04 , H04L45/245 , H04L45/502 , H04L45/74 , H04L47/70 , H04L47/724 , H04L47/728 , H04L47/825 , H04L47/829 , Y02D50/30
摘要： A method for processing data packets in a communication network includes establishing a path for a flow of the data packets through the communication network. At a node along the path having a plurality of aggregated ports, a port is selected from among the plurality to serve as part of the path. A label is chosen responsively to the selected port. The label is attached to the data packets in the flow at a point on the path upstream from the node. Upon receiving the data packets at the node, the data packets are switched through the selected port responsively to the label.

13. 发明授权

US07032135B2 Equipment protection using a partial star architecture 有权
标题翻译：使用部分星型架构进行设备保护
公开(公告)号：US07032135B2
公开(公告)日：2006-04-18
申请号：US10211065
申请日：2002-08-02
申请人： Rafi Harel , Leon Bruckman , Gal Mor
发明人： Rafi Harel , Leon Bruckman , Gal Mor
IPC分类号： G06F11/00
CPC分类号： G06F11/2005 , H04Q1/028 , H04Q1/15
摘要： Communication apparatus includes a plurality of interface cards, including a central interface card and spoke interface cards, which are adapted to link communication lines to a network. A protection bus includes multiple spoke connections that link the central interface card to the spoke interface cards in a partial star configuration, such that on at least one of the spoke connections there are two of the spoke interface cards connected together to the central interface card.
摘要翻译：通信设备包括多个接口卡，包括中央接口卡和辐条接口卡，其适于将通信线路链接到网络。保护总线包括以部分星形配置将中央接口卡连接到辐条接口卡的多个辐条连接，使得在至少一个辐条连接上有两个辐条接口卡连接在一起到中央接口卡。

14. 发明申请

US20060070058A1 Synchronized ring software download 有权
公开(公告)号：US20060070058A1
公开(公告)日：2006-03-30
申请号：US10951575
申请日：2004-09-27
申请人： Zvika Menahemi , Alex Levit , Muly Ilan
发明人： Zvika Menahemi , Alex Levit , Muly Ilan
IPC分类号： G06F9/44
CPC分类号： H04L69/40 , G06F8/656 , H04L12/42 , H04L67/34
摘要： According to a disclosed embodiment of the invention, software download and installation in a ring network are synchronized in a two-stage operation in order to minimize service disruption time. In a first phase, the MPM's and UIM's in all the nodes are upgraded in parallel. Each node has two main processing modules, allowing one to be upgraded while the other continues to operate the node. In a second phase, the RIM's at the edges of a single ring segment are upgraded, one ring segment after the other, during which time each terminal node continues to operate with respect to the span connecting to its opposite side. While a span is non-operative, traffic is wrapped or diverted as necessary to maintain service of the ring. While one RIM of a node is being upgraded, the other RIM remains operational.

15. 发明授权

US06963537B2 Resource reservation in a ring network 有权
标题翻译：环网中的资源预留
公开(公告)号：US06963537B2
公开(公告)日：2005-11-08
申请号：US09794898
申请日：2001-02-26
申请人： Gal Mor , Ron Grinfeld
发明人： Gal Mor , Ron Grinfeld
IPC分类号： H04L12/423 , H04L12/433 , H04L12/56 , H04L12/26
CPC分类号： H04L47/822 , H04L12/423 , H04L12/433 , H04L45/02 , H04L47/13 , H04L47/15 , H04L47/70 , H04L47/724 , H04L47/829
摘要： A method for routing a data flow from a source node to a destination node among a plurality of nodes mutually linked in a ring by segments of a communication network, configured so that the data flow can traverse the ring in either of first and second, mutually-opposing directions of communication. The method includes maintaining at each of the nodes a record of respective levels of use of a network resource on the segments in the ring for both the first and second directions of communication. Responsive to the respective levels of use, one of the directions is selected at the source node, in which to route the data flow to the destination node. A notification is sent from the source node to the other nodes in the ring of an additional allocation of the resource required by the source node in order to convey the data flow to the destination node in the selected direction on the segments in the ring. The record of the levels of use of the resource at each of the nodes is updated, responsive to the notification from the source node.
摘要翻译：一种用于将数据流从源节点路由到多个节点之间的多个节点中的多个节点的方法，所述多个节点在通信网络的各个段中被相互链接，被配置为使得所述数据流可以相互在第一和第二中的任一个中穿过所述环沟通方向。该方法包括在每个节点处对在第一和第二通信方向上的环中的段上的网络资源的各自使用级别的记录进行维护。响应于各个使用级别，在源节点选择方向之一，在该节点将数据流路由到目的地节点。从源节点向源节点所需资源的额外分配的环中的其他节点发送通知，以便在环中的段上将数据流传送到所选方向上的目的地节点。响应于来自源节点的通知，更新每个节点处的资源的使用级别的记录。

16. 发明申请

US20050213558A1 Layer-3 network routing with RPR layer-2 visibility 有权
标题翻译：具有RPR第2层可视性的三层网络路由
公开(公告)号：US20050213558A1
公开(公告)日：2005-09-29
申请号：US10812321
申请日：2004-03-29
申请人： Alex Levit , Gideon Agmon , Ronen Solomon , Zvika Menahemi
发明人： Alex Levit , Gideon Agmon , Ronen Solomon , Zvika Menahemi
IPC分类号： H04L12/28 , H04L12/42 , H04L12/46 , H04L12/56
CPC分类号： H04L12/4633 , H04L12/42 , H04L45/02 , H04L45/22
摘要： Routing tables of OSI layer-3 network elements are modified in order to enable entry to a RPR subnet at different entry points. This enables virtual tunnels or routing paths to utilize all existing entry links to the RPR subnet and to minimize cost factors, such as the number of RPR spans required to traverse the RPR subnet from the entry point to a destination RPR node. The routing tables of RPR subnet elements are modified, such that traffic leaving different elements but destined for the same network location outside the RPR subnet may have individualized RPR exit nodes. The respective RPR exit points for the network elements are chosen to minimize cost factors, such as the number of RPR spans required to reach the exit node from each RPR node.
摘要翻译：修改了OSI第3层网元的路由表，以便能够在不同的入口点进入RPR子网。这使得虚拟隧道或路由路径能够利用到RPR子网的所有现有入口链路，并且最小化成本因素，例如从入口点到目的地RPR节点穿过RPR子网所需的RPR跨度数。 RPR子网元素的路由表被修改，使得离开不同元素但发往RPR子网外的相同网络位置的流量可能具有个性化的RPR退出节点。选择各个网元的RPR出口点以最小化成本因素，例如从每个RPR节点到达退出节点所需的RPR跨度数。

17. 发明申请

US20040190548A1 Efficient transport of TDM services over packet networks 有权
标题翻译：通过分组网络高效传输TDM业务
公开(公告)号：US20040190548A1
公开(公告)日：2004-09-30
申请号：US10396008
申请日：2003-03-24
申请人： Corrigent Systems Ltd.
发明人： Rafi Harel , David Zelig , Leon Bruckman , Nitzan Kappel
IPC分类号： H04J003/16
CPC分类号： H04J3/1617 , H04L12/4633
摘要： A method for data communications includes receiving a time-division-multiplexed (TDM) input signal carrying a payload comprising data and determining whether the data comprise synchronous or non-synchronous data. A first encapsulation scheme is selected if the data comprise synchronous data, and a second encapsulation scheme is selected if the data comprise non-synchronous data. The data are encapsulated for transmission over a packet-switched network in accordance with the selected encapsulation scheme.
摘要翻译：一种用于数据通信的方法包括接收携带包含数据的有效载荷的时分复用（TDM）输入信号，并确定数据是否包括同步或非同步数据。如果数据包括同步数据，则选择第一封装方案，如果数据包括非同步数据，则选择第二封装方案。根据所选择的封装方案，数据被封装以便通过分组交换网络进行传输。

18. 发明申请

US20100172242A1 RING NETWORK AGGREGATE RATES 有权
标题翻译：环网综合利率
公开(公告)号：US20100172242A1
公开(公告)日：2010-07-08
申请号：US12348361
申请日：2009-01-05
申请人： Eyal Prashker , Rafi Ram , Ronen Solomon
发明人： Eyal Prashker , Rafi Ram , Ronen Solomon
IPC分类号： H04L12/56
CPC分类号： H04L47/10 , H04L12/427 , H04L45/125 , H04L47/13 , H04L47/70 , H04L47/76 , H04L47/828
摘要： A functionality and method for determining aggregate data transit bandwidth requirements for the nodes of an Ethernet ring network for traffic management and to improve the operation, efficiency, and Quality of Service. An aggregate bandwidth database is produced, based on a priori knowledge of the ring network, including topology, path utilization, bandwidth sharing, and failure protection scenarios. Aggregate bandwidth requirements are determined independent of the actual real-time data traffic rates, and without requiring any actual real-time data traffic rate information. Aggregate bandwidth is automatically determined upon configuration or reconfiguration of the ring network.
摘要翻译：一种功能和方法，用于确定用于流量管理的以太网环网节点的聚合数据传输带宽需求，并提高运营，效率和服务质量。基于环网的先验知识，生成一个聚合带宽数据库，包括拓扑，路径利用率，带宽共享和故障保护场景。不考虑实际的实时数据流量速率，并且不需要任何实际的实时数据流量速率信息来确定总体带宽需求。在环形网络的配置或重新配置时，会自动确定聚合带宽。

19. 发明授权

US07697552B2 MAC address scalability in interconnected rings 有权
标题翻译：互连环中的MAC地址可扩展性
公开(公告)号：US07697552B2
公开(公告)日：2010-04-13
申请号：US11764764
申请日：2007-06-18
申请人： Leon Bruckman
发明人： Leon Bruckman
IPC分类号： H04L12/66
CPC分类号： H04L12/42 , H04L12/4625
摘要： A method for communication is used in a communication network that includes multiple ring nodes arranged in at least first and second ring networks, which are connected by one or more of the ring nodes serving as interconnect nodes. A data packet is accepted from a source user node served by the first ring network, for forwarding to a destination user node served by the second ring network. An identifier, which identifies an interconnect node in the first ring network through which the data packet is to be forwarded to the second ring network, is attached to the data packet in the first ring network. The data packet is forwarded over the first ring network, accepted at the interconnect node and, responsively to the identifier, forwarded from the interconnect node to the second ring network. The data packet is forwarded over the second ring network to the destination user node.
摘要翻译：在通信网络中使用通信方法，该通信网络包括布置在至少第一和第二环形网络中的多个环形节点，所述多个环形节点由用作互连节点的一个或多个环形节点连接。从第一环网服务的源用户节点接收数据分组，用于转发到由第二环网服务的目的用户节点。将第一环形网络中将数据分组转发到第二环形网络的互连节点标识的标识符附加到第一环形网络中的数据分组。数据分组在第一环形网络上转发，在互连节点处接受，并且响应于从互连节点转发到第二环网络的标识符。数据包通过第二个环网转发到目标用户节点。

20. 发明授权

US07697525B2 Forwarding multicast traffic over link aggregation ports 有权
标题翻译：通过链路聚合端口转发组播流量
公开(公告)号：US07697525B2
公开(公告)日：2010-04-13
申请号：US11644773
申请日：2006-12-21
申请人： David Zelig , Rafi Ram , Leon Bruckman , Zeev Oster , Ronen Solomon
发明人： David Zelig , Rafi Ram , Leon Bruckman , Zeev Oster , Ronen Solomon
IPC分类号： H04L12/56
CPC分类号： H04L45/00 , H04L45/16 , H04L45/245 , Y02D50/30
摘要： A network node in a communication network includes a plurality of ports, at least a subset of which is grouped in a link aggregation (LAG) group. The node includes packet processing logic, which is coupled to receive data packets having respective destination addresses that specify forwarding the packets to groups of multiple recipients through at least one of the ports and to process the data packets so as to forward only a single copy of each of the data packets via the output ports in the subset, while distributing forwarded copies of the data packets among the output ports in the subset so as to balance a traffic load within the LAG group.
摘要翻译：通信网络中的网络节点包括多个端口，其至少其一部分被分组在链路聚合（LAG）组中。节点包括分组处理逻辑，其被耦合以接收具有各自的目的地地址的数据分组，所述数据分组通过至少一个端口将分组转发到多个接收者的组，并且处理数据分组，以便仅转发单个副本每个数据分组经由子集中的输出端口，同时在子集中的输出端口之间分发数据分组的转发副本，以平衡LAG组中的业务负载。

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