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1. 发明授权

US09166916B1 Traffic spraying in a chassis-based network switch 有权
标题翻译：交通喷洒在基于机箱的网络交换机中
公开(公告)号：US09166916B1
公开(公告)日：2015-10-20
申请号：US14047865
申请日：2013-10-07
申请人： Marvell Israel (M.I.S.L) Ltd. , Marvell International Ltd.
发明人： Tal Mizrahi , Carmi Arad , Martin White , Tsahi Daniel , Yoram Revah , Ehud Sivan
IPC分类号： H04L12/28 , H04L12/851
CPC分类号： H04L47/24 , H04L49/20
摘要： In a modular switching device that includes a plurality of packet processors interconnected by a plurality of connecting devices, one or more data packets are received at a first packet processor. The first packet processor generates a communication frame that includes at least a portion of a first data packet among the one or more data packets. The first packet processor divides the communication frame into a plurality of transmission units, includes a communication frame identifier in respective transmission units, and includes a respective position identifier in respective transmission units. The transmission units are transmitted to the plurality of connecting devices via a first plurality of uplinks, and the plurality of connecting devices transmits the transmission units to the second packet processor via a second plurality of uplinks. The communication frame is reassembled from the plurality of transmission units using the communication frame identifier and the position identifiers.
摘要翻译：在包括由多个连接设备互连的多个分组处理器的模块化交换设备中，在第一分组处理器处接收一个或多个数据分组。第一分组处理器生成包括一个或多个数据分组中的第一数据分组的至少一部分的通信帧。第一分组处理器将通信帧划分为多个传输单元，包括各个传输单元中的通信帧标识符，并且在各个传输单元中包括相应的位置标识符。传输单元经由第一多个上行链路传输到多个连接设备，并且多个连接设备经由第二多个上行链路将传输单元发送到第二分组处理器。使用通信帧标识符和位置标识符，从多个发送单元重新组合通信帧。

2. 发明授权

US08908499B1 System and method for handling packets in a stackable network switch 有权
标题翻译：用于在可堆叠网络交换机中处理数据包的系统和方法
公开(公告)号：US08908499B1
公开(公告)日：2014-12-09
申请号：US14223070
申请日：2014-03-24
申请人： Marvell International Ltd.
发明人： Nafea Bishara , Tsahi Daniel , Amit Avivi
IPC分类号： H04L12/26 , H04L12/24 , H04L12/707 , H04L12/775
CPC分类号： H04L41/0668 , H04L43/00 , H04L45/00 , H04L45/22 , H04L45/28 , H04L45/583
摘要： A network switch including a plurality of stack units sequentially linked to each other. Each stack unit includes a port, a forwarding engine, a first interface, and a second interface. The second interface of each stack unit is linked to the first interface of a subsequent stack unit. The second interface of a last stack unit is linked to the first interface of a first stack unit. In response to a packet traveling in a first direction from the first stack unit to the last stack unit and a link between a second stack unit and a third stack unit being inoperative, the forwarding engine of the second stack unit returns the packet in a second direction to a preceding stack unit. The packet travels in the second direction from the preceding stack unit to the first stack unit, to the last stack unit, and to the third stack unit.
摘要翻译：一种网络交换机，包括彼此顺序链接的多个堆叠单元。每个堆栈单元包括端口，转发引擎，第一接口和第二接口。每个堆栈单元的第二个接口链接到后续堆栈单元的第一个接口。最后一个堆栈单元的第二个接口链接到第一堆栈单元的第一个接口。响应于从第一堆栈单元向最后堆栈单元沿第一方向行进的分组，并且第二堆栈单元和第三堆叠单元之间的链路不工作，第二堆叠单元的转发引擎在第二堆栈单元中返回分组方向到前一个堆栈单元。分组沿第二方向从前一堆栈单元行进到第一堆栈单元，到最后一个堆栈单元和第三堆栈单元。

3. 发明授权

US08681603B1 Fast failover recovery for stackable network switches 有权
标题翻译：可堆叠网络交换机的快速故障切换恢复
公开(公告)号：US08681603B1
公开(公告)日：2014-03-25
申请号：US13669756
申请日：2012-11-06
申请人： Marvell International Ltd.
发明人： Nafea Bishara , Tsahi Daniel , Amit Avivi
IPC分类号： G01R31/08 , G06F11/00 , G08C15/00
CPC分类号： H04L41/0668 , H04L43/00 , H04L45/00 , H04L45/22 , H04L45/28 , H04L45/583
摘要： A network switch including first, second, and third stack units. The first stack unit includes a first interface configured to communicate, via a first link, with a second stack unit of the network switch; a second interface configured to communicate, via a second link, with a third stack unit of the network switch; and a forwarding engine configured to transfer a first packet to the first interface, and in response to the first link being inoperative, to (i) receive the first packet from the first interface, and (ii) transfer the first packet received from the first interface to the second interface.
摘要翻译：一种包括第一，第二和第三堆叠单元的网络交换机。第一堆叠单元包括被配置为经由第一链路与网络交换机的第二堆叠单元通信的第一接口; 第二接口，被配置为经由第二链路与所述网络交换机的第三堆叠单元通信; 以及转发引擎，被配置为将第一分组传送到所述第一接口，并且响应于所述第一链路不可操作，以（i）从所述第一接口接收所述第一分组，以及（ii）将从所述第一分组接收的所述第一分组接口到第二个接口。

4. 发明授权

US09843537B1 Low-to-high speed cut-through communication 有权
公开(公告)号：US09843537B1
公开(公告)日：2017-12-12
申请号：US15612682
申请日：2017-06-02
申请人： Marvell International Ltd.
发明人： Martin White , Tsahi Daniel
IPC分类号： G08C15/00 , H04L12/947
CPC分类号： H04L49/25 , H04L49/251 , H04L49/352
摘要： This disclosure describes techniques and apparatuses enabling low-to-high speed cut-through communication without creating an overrun condition. By so doing, the techniques and/or apparatuses enable communication interfaces to communicate at higher speed, such as by avoiding store-to-forward latency.

5. 发明授权

US09294397B1 Apparatus and method for forwarding packets based on approved associations between ports and addresses of received packets 有权
标题翻译：基于端口和接收到的分组地址之间的批准的关联来转发分组的装置和方法
公开(公告)号：US09294397B1
公开(公告)日：2016-03-22
申请号：US13920577
申请日：2013-06-18
申请人： Marvell International Ltd.
发明人： Nafea Bishara , Tsahi Daniel , David Melman
IPC分类号： H04L12/741
CPC分类号： H04L45/74 , H04L49/35
摘要： A switch includes ports including a first port and a second port. A processor approves associations between the ports and addresses of packets. A memory stores entries having respective indicators indicating approval of an association between respective ports and addresses. The first port receives a first packet sent to the switch. The controller: determines whether one of the entries includes an address of the first packet; if none of the entries includes the address of the first packet, sends a first message to the processor requesting approval of the first packet; if one of the entries includes the address of the first packet, determines whether the indicator of the one of the entries indicates approval and based on this, sends the first message to the processor; receives a response from the processor based on the first message; and based on the response, forwards the first packet to the second port.
摘要翻译：交换机包括包括第一端口和第二端口的端口。处理器批准端口和数据包地址之间的关联。存储器存储具有指示各个端口和地址之间的关联的批准的各个指示符的条目。第一个端口接收到发送到交换机的第一个数据包。控制器：确定一个条目是否包含第一个数据包的地址; 如果没有条目包括第一分组的地址，则向处理器发送请求批准第一分组的第一消息; 如果其中一个条目包含第一个包的地址，则确定条目中的一个的指示符是否表示许可，并且基于此，将第一个消息发送到处理器; 基于第一消息从处理器接收响应; 并根据响应，将第一个数据包转发到第二个端口。

6. 发明授权

US09258219B1 Multi-unit switch employing virtual port forwarding 有权
标题翻译：采用虚拟端口转发的多单元交换机
公开(公告)号：US09258219B1
公开(公告)日：2016-02-09
申请号：US14456871
申请日：2014-08-11
申请人： Marvell International Ltd. , Marvell Israel (M.I.S.L) Ltd.
发明人： Uri Safrai , Tsahi Daniel
IPC分类号： H04L12/28 , H04L12/717 , H04L12/713 , H04L12/46
CPC分类号： H04L45/42 , H04L12/4645 , H04L41/0226 , H04L45/586 , H04L49/10 , H04L69/08
摘要： A multi-unit switch includes a plurality of network devices, and a central switch communicatively. The central switch includes a forwarding database for making virtual port forwarding decisions, the forwarding database being populated with virtual port entries corresponding to virtual ports of the central switch, ones of the virtual ports mapped to corresponding ones of physical ports of the plurality of network devices. The central switch is configured to make forwarding decisions to determine virtual ports to which packets are to be forwarded, and forward packets to appropriate physical ports of the central switch based on the virtual port forwarding decisions based on the mapping of virtual ports to physical ports. Network devices are configured to receive packets from the central switch and to forward the received packets to appropriate physical ports of the network devices responsively to indications of the virtual port forwarding decisions made by the central switch.
摘要翻译：多单元交换机通信地包括多个网络设备和中央交换机。所述中央交换机包括用于进行虚拟端口转发决定的转发数据库，所述转发数据库填充有与所述中央交换机的虚拟端口对应的虚拟端口条目，所述虚拟端口映射到所述多个网络设备中对应的物理端口。中央交换机被配置为进行转发决定以确定要转发分组的虚拟端口，并且基于基于虚拟端口到物理端口的映射的虚拟端口转发决定，将分组转发到中央交换机的适当物理端口。网络设备被配置为从中央交换机接收分组，并且响应于由中央交换机做出的虚拟端口转发决定的指示，将接收到的分组转发到网络设备的适当物理端口。

7. 发明授权

US09137030B1 Multicast queueing in a network switch 有权
标题翻译：组播在网络交换机中排队
公开(公告)号：US09137030B1
公开(公告)日：2015-09-15
申请号：US14047871
申请日：2013-10-07
申请人： Marvell Israel (M.I.S.L) Ltd. , Marvell International Ltd.
发明人： Tal Mizrahi , Carmi Arad , Martin White , Tsahi Daniel
IPC分类号： H04L12/28 , H04L12/18
CPC分类号： H04L12/185 , H04L47/15 , H04L47/6295 , H04L49/201 , H04L49/206 , H04L49/90
摘要： First data units corresponding to a first multicast group (MCG) and second data units corresponding to a second MCG are stored in a first queue of a network switching device. At least one first data unit retrieved from the first queue and at least one second data unit retrieved from the first queue are aggregated into a first frame. The first frame is transmitted by the network switching device to a superset MCG that includes at least the first MCG and the second MCG. Only third data units corresponding to a third MCG are stored in a second queue of the network switching device. Third data units retrieved from the second queue are transmitted by the network switching device to the third MCG.
摘要翻译：对应于第一多播组（MCG）的第一数据单元和对应于第二MCG的第二数据单元被存储在网络交换设备的第一队列中。从第一队列检索的至少一个第一数据单元和从第一队列检索的至少一个第二数据单元被聚合成第一帧。第一帧由网络交换设备发送到包括至少第一MCG和第二MCG的超集MCG。对应于第三MCG的仅第三数据单元被存储在网络交换设备的第二队列中。从第二队列检索的第三数据单元由网络交换设备发送到第三MCG。

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