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1. 发明授权

US10721315B1 Developing and implementing migration sequences in data communication networks 有权
公开(公告)号：US10721315B1
公开(公告)日：2020-07-21
申请号：US16711930
申请日：2019-12-12
申请人： ECI Telecom Ltd.
发明人： Shirel Ezra , Efraim Gelman , Inbal Hecht
IPC分类号： H04L29/08 , H04Q11/00 , H04L12/707
摘要： Techniques for migrating a plurality of communications services in a data communication network are disclosed. Aspects include accessing a migration map for the plurality of communications services; identifying a communications dependency between a first service and a second service according to the migration map, the first service migrating from a first route to a second route, the second service migrating from a third route to a fourth route, and the third route at least partially overlapping with the second route; determining a migration sequence based on the communications dependency, wherein the migration sequence includes a largest subset of the plurality of communications services of which no more than M communications services are allowed to migrate from pre-migration configurations to temporary routes, before migrating to post-migration configurations; and migrating the plurality of communications services from a first plurality of configurations to a second plurality of configurations according to the migration sequence.

2. 发明授权

US09686182B2 Method for implementing fast re-routing (FRR) 有权
公开(公告)号：US09686182B2
公开(公告)日：2017-06-20
申请号：US14607349
申请日：2015-01-28
申请人： ECI TELECOM LTD.
发明人： Shell Nakash
IPC分类号： H04L12/28 , H04L12/703 , H04L12/707 , H04L12/723
CPC分类号： H04L45/28 , H04L45/22 , H04L45/50
摘要： A method for providing a protected fast rerouting scheme for traffic conveyed in a network comprising a working path and a first backup path for conveying the traffic in case of a node failure. The method enables conveying traffic when two simultaneous failures occur, a failure of a link and/or of a node, belonging to the working path and the other—a failure occurring at a link and/or a node belonging to the first backup path. Upon detecting occurrence of a link/node failure along the working path, traffic is diverted to the first backup path, and upon detecting a concurrent failure at the downstream link/node at the first backup path, traffic is diverted to a second backup path extending from a node belonging to the first backup path and merges with the working path at a node located downstream of the failure that occurred at the working path.

3. 发明申请

US20160269110A1 CHANNEL PERFORMANCE MONITORING AND AN OPTICAL COMMUNICATION SYSTEM USING SAME 有权
标题翻译：信道性能监控和使用相同的光通信系统
公开(公告)号：US20160269110A1
公开(公告)日：2016-09-15
申请号：US15064848
申请日：2016-03-09
申请人： ECI TELECOM LTD.
发明人： David Jimmy DAHAN , Amitay MELAMED
IPC分类号： H04B10/079 , H04B10/073
CPC分类号： H04B10/07953 , H04B10/0793 , H04B10/07951 , H04B10/60
摘要： A method is provided for carrying out channel performance monitoring in an optical communication system. The method comprising: receiving an optical signal; obtaining digitized samples associated with the optical signal; storing the digitized samples; carrying out an off-line processing of the stored samples. The off-line processing includes: using the digitized samples to determine information characterizing the at least one optical channel used for conveying the optical signal; using the determined information to estimate a value of at least one optical channel performance parameter characterizing the at least one optical channel; and forwarding the value of the at least one optical channel performance parameter to a network management element; and wherein the at least one optical channel performance parameter is estimated without a prior knowledge of information on a modulation format associated with the optical channel.
摘要翻译：提供了一种用于在光通信系统中执行信道性能监视的方法。该方法包括：接收光信号; 获取与光信号相关联的数字化样本; 存储数字化样本; 对所存储的样品进行离线处理。离线处理包括：使用数字化样本来确定表征用于传送光信号的至少一个光信道的信息; 使用所确定的信息来估计表征所述至少一个光信道的至少一个光信道性能参数的值; 并将所述至少一个光信道性能参数的值转发给网络管理单元; 并且其中在没有关于与所述光信道相关联的调制格式的信息的先前知识的情况下估计所述至少一个光信道性能参数。

4. 发明授权

US09402275B2 Interconnecting base stations of a cellular network via a transport network 有权
标题翻译：通过传输网络互连蜂窝网络的基站
公开(公告)号：US09402275B2
公开(公告)日：2016-07-26
申请号：US13901160
申请日：2013-05-23
申请人： ECI TELECOM LTD.
发明人： Andrew Sergeev , Yakov Zimmerman , Alexander Vainshtein
IPC分类号： H04W16/18 , H04W84/04 , H04W40/20 , H04W92/04
CPC分类号： H04W84/045 , H04W40/20 , H04W92/045
摘要： A method is provided for interconnecting base stations of a cellular network via a transport network which comprises a plurality of network elements (NEs), wherein at least two of the plurality of NEs are collocated with respective base stations. The method comprises the steps of: establishing in the TN at least one proximity group that comprises a plurality of geographically adjacent NEs; establishing a logical grid connectivity between NEs that are members of the same proximity group to enable direct communications there-between, thereby enabling establishment of communications paths between base stations collocated with the at least two of the plurality of NEs, wherein that path extends via the at least two respective NEs communicating directly there-between.
摘要翻译：提供了一种用于经由包括多个网元（NE）的传输网络来互连蜂窝网络的基站的方法，其中所述多个NE中的至少两个与各个基站并置。该方法包括以下步骤：在TN中建立包括多个地理上相邻的NE的至少一个邻近组; 在作为相同邻近组的成员的NE之间建立逻辑网格连接，以实现其间的直接通信，由此能够建立与所述多个NE中的至少两个之间并置的基站之间的通信路径，其中该路径经由至少两个相互间直接通信的NE。

5. 发明授权

US09197570B2 Congestion control in packet switches 有权
标题翻译：分组交换机拥塞控制
公开(公告)号：US09197570B2
公开(公告)日：2015-11-24
申请号：US13869514
申请日：2013-04-24
申请人： ECI Telecom Ltd.
发明人： Shell Nakash , Gideon Agmon
IPC分类号： H04L12/851 , H04L12/801
CPC分类号： H04L47/2483 , H04L47/24 , H04L47/29
摘要： A method is provided for managing congestion of traffic in a packet switch, which comprises the steps of: providing more than two different congestion levels at the switch for handling traffic associated with at least two different priorities, one being a low priority traffic and another being a high priority traffic; for each traffic flow having a specific destination and priority, determining a current congestion level that matches a congestion control level which is selected from among the more than two congestion control levels, and associating a different set of operations for handling each respective traffic flow, depending on its priority and its current congestion level, and for each traffic flow, performing operations that match the respective associated set of operations, and wherein a rate at which these operations are performed for each respective traffic flow increases when a higher congestion level occurs at that respective traffic flow.
摘要翻译：提供了一种用于管理分组交换机中的业务拥塞的方法，其包括以下步骤：在交换机处提供两个以上不同的拥塞级别，以处理与至少两个不同优先级相关联的业务，一个是低优先级业务，另一个高优先级流量; 对于具有特定目的地和优先级的每个业务流，确定与从多于两个拥塞控制级别中选择的拥塞控制级别匹配的当前拥塞级别，并且关联用于处理每个相应业务流的不同操作集合，依赖在其优先级和其当前拥塞水平以及针对每个业务流的情况下执行与相应的相关联的一组操作相匹配的操作，并且其中对于每个相应业务流执行这些操作的速率在发生较高拥塞水平时增加各自的交通流量。

6. 发明申请

US20150215201A1 METHOD FOR IMPLEMENTING FAST RE-ROUTING (FRR) 有权
标题翻译：实施快速重路由（FRR）的方法
公开(公告)号：US20150215201A1
公开(公告)日：2015-07-30
申请号：US14607349
申请日：2015-01-28
申请人： ECI Telecom Ltd.
发明人： Shell NAKASH
IPC分类号： H04L12/703 , H04L12/723 , H04L12/707
CPC分类号： H04L45/28 , H04L45/22 , H04L45/50
摘要： A method for providing a protected fast rerouting scheme for traffic conveyed in a network comprising a working path and a first backup path for conveying the traffic in case of a node failure. The method enables conveying traffic when two simultaneous failures occur, a failure of a link and/or of a node, belonging to the working path and the other—a failure occurring at a link and/or a node belonging to the first backup path. Upon detecting occurrence of a link/node failure along the working path, traffic is diverted to the first backup path, and upon detecting a concurrent failure at the downstream link/node at the first backup path, traffic is diverted to a second backup path extending from a node belonging to the first backup path and merges with the working path at a node located downstream of the failure that occurred at the working path.
摘要翻译：一种用于为在网络中传送的业务提供受保护的快速重新路由方案的方法，包括工作路径和用于在节点故障的情况下传送业务的第一备份路径。当发生两个同时发生的故障，属于工作路径的链路和/或节点的故障，另一个故障发生在属于第一备份路径的链路和/或节点时，该方法能够传送流量。当检测到沿着工作路径的链路/节点故障的发生时，流量被转移到第一备份路径，并且在检测到在第一备份路径处的下游链路/节点处的并发故障时，流量被转移到第二备份路径延伸来自属于第一备份路径的节点，并且在位于在工作路径发生的故障的下游的节点处与工作路径合并。

7. 发明授权

US09025915B2 Method and module for switching optical signals having different modes of propagation 有权
标题翻译：用于切换具有不同传播模式的光信号的方法和模块
公开(公告)号：US09025915B2
公开(公告)日：2015-05-05
申请号：US13628721
申请日：2012-09-27
申请人： ECI Telecom Ltd.
发明人： Uri Mahlab
IPC分类号： G02B6/35 , G02B6/14 , H04Q11/00
CPC分类号： G02B6/356 , G02B6/3508 , H04Q11/0005 , H04Q2011/0016 , H04Q2011/0024 , H04Q2011/0039
摘要： A method and module for affecting controlled switching of optical signals having different modes of propagation, wherein the module being provided with at least two multi-mode ports MMPs and a plurality of single-mode ports SMPs, the method comprises: inputting at least one multimode optical signal to an MMP of said MMPs; inputting the single mode optical signals to the SMPs; performing mode processing of one or more of the single mode and multi mode optical signals within the switching module, controllably and selectively switching different optical signals inputted to different ports of the module, preferably based on received feedback related to quality information, thereby allowing switching between single mode ports, between multi-mode ports, and between single mode and multi mode ports.
摘要翻译：一种用于影响具有不同传播模式的光信号的受控切换的方法和模块，其中所述模块被提供有至少两个多模式端口MMP和多个单模端口SMP，所述方法包括：输入至少一个多模所述MMP的MMP的光学信号; 将单模光信号输入到SMP; 优选地，基于接收到的与质量信息相关的反馈，可控地和选择性地切换输入到模块的不同端口的不同光信号，从而允许在开关模块内的单模和多模光信号中的一个或多个模式处理单模端口，多模式端口之间以及单模和多模端口之间。

8. 发明申请

US20130279340A1 CONGESTION CONTROL IN PACKET SWITCHES 有权
标题翻译：分组开关中的约束控制
公开(公告)号：US20130279340A1
公开(公告)日：2013-10-24
申请号：US13869514
申请日：2013-04-24
申请人： ECI TELECOM LTD.
发明人： Shell NAKASH , Gideon AGMON
IPC分类号： H04L12/70
CPC分类号： H04L47/2483 , H04L47/24 , H04L47/29
摘要： A method is provided for managing congestion of traffic in a packet switch, which comprises the steps of: providing more than two different congestion levels at the switch for handling traffic associated with at least two different priorities, one being a low priority traffic and another being a high priority traffic; for each traffic flow having a specific destination and priority, determining a current congestion level that matches a congestion control level which is selected from among the more than two congestion control levels, and associating a different set of operations for handling each respective traffic flow, depending on its priority and its current congestion level, and for each traffic flow, performing operations that match the respective associated set of operations, and wherein a rate at which these operations are performed for each respective traffic flow increases when a higher congestion level occurs at that respective traffic flow.
摘要翻译：提供了一种用于管理分组交换机中的业务拥塞的方法，其包括以下步骤：在交换机处提供两个以上不同的拥塞级别，以处理与至少两个不同优先级相关联的业务，一个是低优先级业务，另一个高优先级流量; 对于具有特定目的地和优先级的每个业务流，确定与从多于两个拥塞控制级别中选择的拥塞控制级别匹配的当前拥塞级别，并且关联用于处理每个相应业务流的不同操作集合，依赖在其优先级和其当前拥塞水平以及针对每个业务流的情况下执行与相应的相关联的一组操作相匹配的操作，并且其中对于每个相应业务流执行这些操作的速率在发生较高拥塞水平时增加各自的交通流量。

9. 发明申请

US20040218551A1 Technology for improving STP protocols in ethernet networks supporting VLANs 有权
标题翻译：用于改进支持VLAN的以太网网络中STP协议的技术
公开(公告)号：US20040218551A1
公开(公告)日：2004-11-04
申请号：US10824378
申请日：2004-04-15
申请人： ECI TELECOM LTD
发明人： Noam Goldberg , Igor Balter , Idan Kaspit
IPC分类号： H04L012/28
CPC分类号： H04L45/48 , H04L12/462 , H04L12/4641
摘要： A method for utilizing a Spanning Tree Protocol (STP) in an Ethernet network wherein a number of VLANs are defined and a plurality of Ethernet switching nodes (A, B, C D E, F, G H) are interconnected via their ports (A1, . . . ,H4) so that each of the ports is initially assigned to one or more VLANs, and each of the VLANs is intended to enable traffic between two or more edge ports (D3, B3). The method comprises also-called pruning procedure initiated upon establishing a new STP topology (30) related to one or more VLANs. This procedure concerns a broadcast domain of at least one of the VLANs and is aimed at obtaining a sub-tree for each pruned VLAN in the new STP topology. The sub-tree is usually shrunk, bound by the edge ports assigned to the corresponding pruned VLAN, and thus eliminates broadcast traffic of the pruned VLAN to any Ethernet switch extending beyond the obtained sub-tree.
摘要翻译：一种在以太网中利用生成树协议（STP）的方法，其中定义了多个VLAN，并且多个以太网交换节点（A，B，CDE，F，GH）经由其端口（A1，...，，H4），使得每个端口最初被分配给一个或多个VLAN，并且每个VLAN旨在启用两个或更多个边缘端口（D3，B3）之间的流量。该方法还包括在建立与一个或多个VLAN相关的新STP拓扑（30）时启动的也称为修剪过程。该过程涉及至少一个VLAN的广播域，并且旨在获得新STP拓扑中每个修剪的VLAN的子树。子树通常被收缩，由分配给相应修剪的VLAN的边缘端口绑定，从而消除了修剪的VLAN到超出所获得的子树的任何以太网交换机的广播流量。

10. 发明授权

US11411856B2 Systems and methods for configuring a communications network 有权
公开(公告)号：US11411856B2
公开(公告)日：2022-08-09
申请号：US17248452
申请日：2021-01-25
申请人： ECI Telecom Ltd.
发明人： Shirel Ezra , Inbal Hecht , Efraim Gelman
IPC分类号： H04L45/12 , H04L45/02 , H04L45/16
摘要： Systems and methods are disclosed for configuring a communications network. In disclosed embodiments, a set of permissible service link decompositions and a set of basic service links may be obtained for the communications network. A spanning subset of service links for the communications may be generated. Generation of the spanning subset may include selecting a decomposition of a first service link from a set of permissible service link decompositions; updating the set of permissible service link decompositions based on the selected decomposition; and updating the set of basic service links using the updated set of permissible service link decompositions. In some embodiments, obtaining the set of permissible service link decompositions can include generating a set of permissible service link decompositions by traversing decomposition graphs generated for each of the service links. In some embodiments, the communications network can be configured to satisfy network demands using the spanning subset.

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