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1. 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。

2. 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。

3. 发明授权

US07158721B2 Performance monitoring of multiple channels in an automatic protection switched network 有权
标题翻译：自动保护交换网络中多个通道的性能监控
公开(公告)号：US07158721B2
公开(公告)日：2007-01-02
申请号：US10082771
申请日：2002-02-25
申请人： Sharon Mantin , David Zelig , Shmuel Ilan , Leon Bruckman
发明人： Sharon Mantin , David Zelig , Shmuel Ilan , Leon Bruckman
IPC分类号： H04B10/00
CPC分类号： H04B10/032 , H04J3/14 , H04J2203/0057
摘要： A performance management unit manages a primary interface and a standby or secondary interface to two channels of an optical communications network having APS capabilities. Each performance parameter is associated with three counters. First and second counters are linked to registers of the primary and the secondary ports, and the third counter is linked to the registers of the currently active port. When a protection switch occurs, the first and second counters are immediately read and reset. The third counter continues accumulating data, but becomes associated with the new active port. At the end of a read interval, the third counter correctly reflects the number of data received, regardless of switchovers between the primary and secondary channels.
摘要翻译：性能管理单元管理具有APS能力的光通信网络的两个信道的主接口和备用或二次接口。每个性能参数与三个计数器相关联。第一和第二计数器链接到主端口和辅助端口的寄存器，第三计数器链接到当前活动端口的寄存器。当发生保护开关时，立即读取和复位第一和第二计数器。第三个计数器继续累积数据，但与新的活动端口相关联。在读取间隔结束时，第三个计数器正确地反映了接收的数据数，而不管主通道和辅助通道之间的切换。

4. 发明授权

US06957369B2 Hidden failure detection 有权
标题翻译：隐藏故障检测
公开(公告)号：US06957369B2
公开(公告)日：2005-10-18
申请号：US10156851
申请日：2002-05-30
申请人： Leon Bruckman , Shmuel Ilan
发明人： Leon Bruckman , Shmuel Ilan
IPC分类号： G01R31/317 , G01R31/3187 , G01R31/28
CPC分类号： G01R31/31716 , G01R31/31723 , G01R31/3187
摘要： A method for self-testing of an electronic system that includes a main module and subsidiary modules, which are connected to the main module by data lines, at least some of which may be idle. One of the idle lines is selected to serve as an aid line, and the subsidiary module to which the aid line is connected is instructed to loop back traffic reaching the subsidiary module via the aid line. Another idle line is selected for testing, and a switch in the main module is configured to link the aid line and the line under test. The subsidiary module to which the line under test is connected transmits test traffic over the idle line to the main module. If the test traffic does not return to the subsidiary module within a predetermined period of time, a failure is reported.
摘要翻译：一种用于对包括主模块和辅助模块的电子系统进行自检的方法，所述主模块和辅助模块通过数据线连接到主模块，其中至少一些可以是空闲的。选择空闲线路中的一条作为辅助线路，并且指示辅助线路连接到的辅助模块经由辅助线路回送到达辅助模块的流量。选择另一条空闲线路进行测试，并将主模块中的交换机配置为链接辅助线路和被测线路。所连接的被测试线路的辅助模块通过空闲线路将测试流量传输到主模块。如果测试流量在预定时间段内没有返回到辅助模块，则报告故障。

5. 发明授权

US06917986B2 Fast failure protection using redundant network edge ports 有权
标题翻译：使用冗余网络边缘端口进行快速故障保护
公开(公告)号：US06917986B2
公开(公告)日：2005-07-12
申请号：US10036518
申请日：2002-01-07
申请人： Gal Mor , Shmuel Ilan
发明人： Gal Mor , Shmuel Ilan
IPC分类号： H04L12/56 , G06F15/173
CPC分类号： H04L45/00 , H04L45/28 , H04L45/583 , Y10S707/99945 , Y10S707/99948
摘要： A method for fast protection in a fault-tolerant network includes coupling an edge switch in a network to one or more access switches via at least first and second redundant links, respectively connected to first and second ports of the edge switch. The first port is placed in an active state, while the second port is placed in a blocking state, so that communication traffic is conveyed over the first link, and each of the switches builds a respective database for use in forwarding the traffic. Responsive to a failure associated with the first link, the second port is placed in the active state and the first port is placed in the blocking state. Dummy traffic is then sent from the edge switch over the second link to the one or more access switches, so as to cause each of the one or more access switches to modify its respective database responsive to the second port being in the active state.
摘要翻译：用于在容错网络中快速保护的方法包括通过分别连接到边缘交换机的第一和第二端口的至少第一和第二冗余链路将网络中的边缘交换机耦合到一个或多个接入交换机。第一端口处于活动状态，而第二端口处于阻塞状态，使得通信流量通过第一链路传送，并且每个交换机构建用于转发流量的相应数据库。响应于与第一链路相关联的故障，第二端口处于活动状态，并且第一端口被置于阻塞状态。然后，将虚拟业务从边缘交换机通过第二链路发送到一个或多个接入交换机，以便响应于第二端口处于活动状态使一个或多个接入交换机中的每一个修改其各自的数据库。

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