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1. 发明授权

US08422887B2 System for redundancy in Ethernet passive optical networks (EPONs) 有权
标题翻译：以太网无源光网络（EPON）冗余系统
公开(公告)号：US08422887B2
公开(公告)日：2013-04-16
申请号：US12697253
申请日：2010-01-31
申请人： Zachy Haramaty , Yaniv Kopelman , Alon Meirson , Lior Khermosh
发明人： Zachy Haramaty , Yaniv Kopelman , Alon Meirson , Lior Khermosh
IPC分类号： H04J14/00 , H04B10/00
CPC分类号： H04B10/03 , H04B17/00 , H04J14/00
摘要： A system for redundancy in Ethernet passive optical networks (EPONs) facilitates fast recovery from failure (less than 50 msec), path redundancy of the fiber optic network, and location redundancy of the OLTs. An optical networking unit (ONU) in a normal state monitors input communications, and when the input communications are quiet for a predetermined minimum length of time, the ONU transitions to a lenient state in which: the ONU accepts old and new security keys; upon receiving a packet: the ONU updates an ONU timestamp based on the packet's timestamp; and the ONU transitions to the normal state of operation. While the ONU is in the lenient state if a packet is not received for a predetermined given length of time the ONU transitions to a deregistered state. In this system, main and standby OLTs do not require synchronization of security parameters or synchronization for differences in fiber lengths.
摘要翻译：以太网无源光网络（EPON）中的冗余系统有助于从故障（小于50毫秒），光纤网络的路径冗余和OLT的位置冗余的快速恢复。处于正常状态的光网络单元（ONU）监视输入通信，并且当输入通信静止预定的最小时间长度时，ONU转换到宽广状态，其中：ONU接受旧的和新的安全密钥; ONU收到报文后，根据报文的时间戳更新ONU时间戳; 并且ONU转换到正常的操作状态。如果在预定的给定时间长度内没有接收到分组，则ONU处于宽松状态，则ONU转换到注销状态。在该系统中，主和备用OLT不需要对光纤长度差异进行安全参数同步或同步。

2. 发明授权

US08205047B2 Method and apparatus for reducing simultaneous switching outputs 有权
标题翻译：减少同时开关输出的方法和装置
公开(公告)号：US08205047B2
公开(公告)日：2012-06-19
申请号：US12047754
申请日：2008-03-13
申请人： Yaniv Kopelman
发明人： Yaniv Kopelman
IPC分类号： G06F12/00
CPC分类号： G06F17/505
摘要： The disclosure provides a method for reducing an amount of simultaneous switching outputs (SSO) of a device. The method of reducing the amount of simultaneous switching outputs can include driving outputs of the device to a first set of values, scrambling a second set of values to reduce an amount of simultaneous switching outputs resulting from the switching of the first to the second set of values, and driving the outputs of the device to the scrambled second set of values. Further, the method can include descrambling the scrambled second set of values back to the second set of values.
摘要翻译：本公开提供了一种用于减少设备的同时切换输出（SSO）的量的方法。减少同时切换输出量的方法可以包括将设备的输出驱动到第一组值，对第二组值进行加扰，以减少由第一组到第二组的切换产生的同时切换输出的量值，并将设备的输出驱动到加扰的第二组值。此外，该方法可以包括将加扰的第二组值解扰回到第二组值。

3. 发明授权

US07978700B2 Apparatus for determining locations of fields in a data unit 有权
标题翻译：用于确定数据单元中场的位置的装置
公开(公告)号：US07978700B2
公开(公告)日：2011-07-12
申请号：US12047063
申请日：2008-03-12
申请人： Yaniv Kopelman , Aviran Kadosh
发明人： Yaniv Kopelman , Aviran Kadosh
IPC分类号： H04L12/28
CPC分类号： H04L69/22
摘要： A header analyzer unit generates attribute information regarding headers of a data unit. The header analyzer unit includes a programmable memory unit having a content addressable memory (CAM) with an input to receive a first portion of the data unit and a second portion of the data unit. The programmable memory unit also includes a memory separate from the CAM and coupled to an output of the CAM. The CAM stores indications of locations within the memory separate from the CAM, and the memory separate from the CAM programmably stores header attribute information regarding a plurality of different types of headers for data units having different formats.
摘要翻译：标题分析器单元生成关于数据单元的头部的属性信息。标题分析器单元包括具有内容可寻址存储器（CAM）的可编程存储器单元，其具有用于接收数据单元的第一部分的输入和数据单元的第二部分。可编程存储器单元还包括与CAM分离并耦合到CAM的输出的存储器。 CAM存储与CAM分离的存储器中的位置的指示，并且与CAM分离的存储器可编程地存储关于具有不同格式的数据单元的多个不同类型的头的头部属性信息。

4. 发明授权

US07948976B2 Efficient management of queueing resources for switches 有权
标题翻译：交换机排队资源的有效管理
公开(公告)号：US07948976B2
公开(公告)日：2011-05-24
申请号：US11412265
申请日：2006-04-26
申请人： Carmi Arad , Yaniv Kopelman , Aviran Kadosh
发明人： Carmi Arad , Yaniv Kopelman , Aviran Kadosh
IPC分类号： H04L12/56 , G06F5/12
CPC分类号： H04L47/10 , H04L47/2408 , H04L47/2441 , H04L47/32 , H04L49/90 , H04L49/901 , H04L49/9021
摘要： Resources allocated to a group of ports include a plurality of storage regions. Each storage region includes a committed area and a shared area. A destination storage region is identified for a packet. A packet queuing engine stores the packet in the committed area of the determined destination storage region if it has a first drop precedence value, and if available storage space in the committed area exceeds a first threshold. The packet queuing engine stores the packet in the shared area of the determined destination storage region if the packet is not stored in the committed area, and if available storage space exceeds a second threshold defined by the packet's drop precedence value. If the packet is not stored either in the committed or shared area, it may be dropped.
摘要翻译：分配给一组端口的资源包括多个存储区域。每个存储区域包括承诺区域和共享区域。为分组识别目的地存储区域。如果分组排队引擎具有第一丢弃优先级值，则分组排队引擎将所述分组存储在所确定的目的地存储区域的提交区域中，并且如果所述提交区域中的可用存储空间超过第一阈值。如果分组未存储在提交区域中，并且如果可用存储空间超过由分组的丢弃优先级值定义的第二阈值，则分组排队引擎将分组存储在所确定的目的地存储区域的共享区域中。如果数据包未存储在承诺或共享区域中，则可能会丢弃该数据包。

5. 发明申请

US20090274154A1 Double-hash lookup mechanism for searching addresses in a network device 有权
标题翻译：用于搜索网络设备中的地址的双哈希查找机制
公开(公告)号：US20090274154A1
公开(公告)日：2009-11-05
申请号：US11412672
申请日：2006-04-26
申请人： Yaniv Kopelman , Ruven Torok , Dan Aharoni
发明人： Yaniv Kopelman , Ruven Torok , Dan Aharoni
IPC分类号： H04L12/56
CPC分类号： H04L45/00 , H04L45/745 , H04L49/3009 , H04L49/45
摘要： A hash function is applied to a set of data to generate a hash. A first subset of the hash is used to lookup an entry in a lookup table for a forwarding database. A second subset of the hash is used to identify, within the entry, data comprising an offset. The offset is applied to a location identified in the forwarding database by the first subset of the hash to determine an entry in the forwarding database. Optionally, the lookup mechanism is used in conjunction with one or more other forwarding databases. A method of updating the forwarding database within the double hash lookup framework is also described.
摘要翻译：散列函数应用于一组数据以生成散列。散列的第一个子集用于查找转发数据库的查找表中的条目。散列的第二子集用于在条目内识别包括偏移的数据。该偏移量被应用于转发数据库中由散列的第一子集识别的位置，以确定转发数据库中的条目。可选地，查找机制与一个或多个其他转发数据库结合使用。还描述了在双重哈希查找框架内更新转发数据库的方法。

6. 发明申请

US20080232374A1 METHOD AND APPARATUS FOR DETERMINING LOCATIONS OF FIELDS IN A DATA UNIT 有权
标题翻译：用于确定数据单元中字段位置的方法和装置
公开(公告)号：US20080232374A1
公开(公告)日：2008-09-25
申请号：US12047063
申请日：2008-03-12
申请人： Yaniv KOPELMAN , Aviran Kadosh
发明人： Yaniv KOPELMAN , Aviran Kadosh
IPC分类号： H04L12/28
CPC分类号： H04L69/22
摘要： At least a portion of a data unit is provided to a programmable memory unit to identify an attribute of a field in a header of the data unit. The header is parsed in response to an output of the programmable memory unit.
摘要翻译：将数据单元的至少一部分提供给可编程存储器单元以识别数据单元的报头中的字段的属性。响应于可编程存储器单元的输出来解析报头。

7. 发明申请

US20080224757A1 METHOD AND APPARATUS FOR REDUCING SIMULTANEOUS SWITCHING OUTPUTS 有权
标题翻译：减少同时切换输出的方法和装置
公开(公告)号：US20080224757A1
公开(公告)日：2008-09-18
申请号：US12047754
申请日：2008-03-13
申请人： Yaniv KOPELMAN
发明人： Yaniv KOPELMAN
IPC分类号： H03K17/296
CPC分类号： G06F17/505
摘要： The disclosure provides a method for reducing an amount of simultaneous switching outputs (SSO) of a device. The method of reducing the amount of simultaneous switching outputs can include driving outputs of the device to a first set of values, scrambling a second set of values to reduce an amount of simultaneous switching outputs resulting from the switching of the first to the second set of values, and driving the outputs of the device to the scrambled second set of values. Further, the method can include descrambling the scrambled second set of values back to the second set of values.
摘要翻译：本公开提供了一种用于减少设备的同时切换输出（SSO）的量的方法。减少同时切换输出量的方法可以包括将设备的输出驱动到第一组值，对第二组值进行加扰，以减少由第一组到第二组的切换产生的同时切换输出的量值，并将设备的输出驱动到加扰的第二组值。此外，该方法可以包括将加扰的第二组值解扰回到第二组值。

8. 发明申请

US20070253411A1 Efficient management of queueing resources for diffserv-aware switches 有权
标题翻译：有效管理支持diffserv的交换机的排队资源
公开(公告)号：US20070253411A1
公开(公告)日：2007-11-01
申请号：US11412265
申请日：2006-04-26
申请人： Carmi Arad , Yaniv Kopelman , Aviran Kadosh
发明人： Carmi Arad , Yaniv Kopelman , Aviran Kadosh
IPC分类号： H04L12/56
CPC分类号： H04L47/10 , H04L47/2408 , H04L47/2441 , H04L47/32 , H04L49/90 , H04L49/901 , H04L49/9021
摘要： Resources allocated to a group of ports include a plurality of storage regions. Each storage region includes a committed area and a shared area. A destination storage region is identified for a packet. A packet queuing engine stores the packet in the committed area of the determined destination storage region if it has a first drop precedence value, and if available storage space in the committed area exceeds a first threshold. The packet queuing engine stores the packet in the shared area of the determined destination storage region if the packet is not stored in the committed area, and if available storage space exceeds a second threshold defined by the packet's drop precedence value. If the packet is not stored either in the committed or shared area, it may be dropped.
摘要翻译：分配给一组端口的资源包括多个存储区域。每个存储区域包括承诺区域和共享区域。为分组识别目的地存储区域。如果分组排队引擎具有第一丢弃优先级值，则分组排队引擎将所述分组存储在所确定的目的地存储区域的提交区域中，并且如果所述提交区域中的可用存储空间超过第一阈值。如果分组未存储在提交区域中，并且如果可用存储空间超过由分组的丢弃优先级值定义的第二阈值，则分组排队引擎将分组存储在所确定的目的地存储区域的共享区域中。如果数据包未存储在承诺或共享区域中，则可能会丢弃该数据包。

9. 发明授权

US08571035B2 Method and apparatus for determining locations of fields in a data unit 有权
标题翻译：用于确定数据单元中场的位置的方法和装置
公开(公告)号：US08571035B2
公开(公告)日：2013-10-29
申请号：US13180254
申请日：2011-07-11
申请人： Yaniv Kopelman , Aviran Kadosh
发明人： Yaniv Kopelman , Aviran Kadosh
IPC分类号： H04L12/28
CPC分类号： H04L69/22
摘要： A packet processor for processing a data unit received from a network includes a header analyzer unit configured to obtain indications of locations in a header of the data unit of one or more fields to be parsed from the data unit to perform a packet processing operation on the data unit. The header analyzer unit comprises a ternary content addressable memory (TCAM), and a memory separate from the TCAM and coupled to an output of the TCAM, wherein a content of the TCAM and a content of the memory are programmable. The header analyzer unit is configured to obtain, responsive to a lookup of at least one portion of the data unit in the TCAM, indications of locations in a header of the data unit of one or more fields to be parsed from the data unit to perform a packet processing operation on the data unit. The packet processor further comprises a parser configured to parse the header using the indications of locations of one or more fields in the header to obtain data from the one or more fields.
摘要翻译：用于处理从网络接收的数据单元的分组处理器包括：报头分析器单元，被配置为从数据单元获取要解析的一个或多个字段的数据单元的报头中的位置的指示，以对从该数据单元执行分组处理操作数据单元。标题分析器单元包括三元内容可寻址存储器（TCAM）和与TCAM分离并耦合到TCAM的输出的存储器，其中TCAM的内容和存储器的内容是可编程的。标题分析器单元被配置为响应于TCAM中的数据单元的至少一部分的查找来获得要从数据单元解析以执行的一个或多个字段的数据单元的报头中的位置的指示对数据单元进行分组处理操作。分组处理器还包括解析器，其被配置为使用标题中的一个或多个字段的位置的指示来解析报头，以从一个或多个字段获得数据。

10. 发明申请

US20110268123A1 METHOD AND APPARATUS FOR DETERMINING LOCATIONS OF FIELDS IN A DATA UNIT 有权
标题翻译：用于确定数据单元中字段位置的方法和装置
公开(公告)号：US20110268123A1
公开(公告)日：2011-11-03
申请号：US13180254
申请日：2011-07-11
申请人： Yaniv Kopelman , Aviran Kadosh
发明人： Yaniv Kopelman , Aviran Kadosh
IPC分类号： H04L12/56
CPC分类号： H04L69/22
摘要： A packet processor for processing a data unit received from a network includes a header analyzer unit configured to obtain indications of locations in a header of the data unit of one or more fields to be parsed from the data unit to perform a packet processing operation on the data unit. The header analyzer unit comprises a ternary content addressable memory (TCAM), and a memory separate from the TCAM and coupled to an output of the TCAM, wherein a content of the TCAM and a content of the memory are programmable. The header analyzer unit is configured to obtain, responsive to a lookup of at least one portion of the data unit in the TCAM, indications of locations in a header of the data unit of one or more fields to be parsed from the data unit to perform a packet processing operation on the data unit. The packet processor further comprises a parser configured to parse the header using the indications of locations of one or more fields in the header to obtain data from the one or more fields.
摘要翻译：用于处理从网络接收的数据单元的分组处理器包括：报头分析器单元，被配置为从数据单元获取要解析的一个或多个字段的数据单元的报头中的位置的指示，以对从该数据单元执行分组处理操作数据单元。标题分析器单元包括三元内容可寻址存储器（TCAM）和与TCAM分离并耦合到TCAM的输出的存储器，其中TCAM的内容和存储器的内容是可编程的。标题分析器单元被配置为响应于TCAM中的数据单元的至少一部分的查找来获得要从数据单元解析以执行的一个或多个字段的数据单元的报头中的位置的指示对数据单元进行分组处理操作。分组处理器还包括解析器，其被配置为使用标题中的一个或多个字段的位置的指示来解析报头，以从一个或多个字段获得数据。

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