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21. 发明授权

US09032093B2 Automatic aggregation of inter-device ports/links in a virtual device 有权
标题翻译：在虚拟设备中自动聚合设备间端口/链路
公开(公告)号：US09032093B2
公开(公告)日：2015-05-12
申请号：US13349441
申请日：2012-01-12
申请人： Megh Bhatt , Harshad Nakil , Rajashekar Reddy , Saurabh Agarwal , Sai Ganesh Sitharaman
发明人： Megh Bhatt , Harshad Nakil , Rajashekar Reddy , Saurabh Agarwal , Sai Ganesh Sitharaman
IPC分类号： G06F15/173 , H04L12/709
CPC分类号： H04L45/02 , H04L43/0811 , H04L45/245 , H04L67/10 , Y02D50/30
摘要： A virtual device includes multiple devices connected to operate as a single device. A first one of the devices is configured to determine that the first device connects to a second one of the devices via a first link; identify a second link; determine that the second link connects the first device to the second device; and automatically aggregate the first link and the second link to form a link aggregation with the second device based on determining that the first device connects to the second device via both the first and second links. The first device is further configured to transmit packets to the second device via the first and second links of the link aggregation.
摘要翻译：虚拟设备包括连接以作为单个设备操作的多个设备。第一设备被配置为确定第一设备经由第一链路连接到设备中的第二设备; 识别第二个链接; 确定所述第二链路将所述第一设备连接到所述第二设备; 并且基于确定所述第一设备经由所述第一和第二链路连接到所述第二设备，自动聚合所述第一链路和所述第二链路以与所述第二设备形成链路聚合。第一设备还被配置为经由链路聚合的第一和第二链路向第二设备传送分组。

22. 发明授权

US08284664B1 Redirecting data units to service modules based on service tags and a redirection table 有权
标题翻译：基于服务标签和重定向表将数据单元重定向到服务模块
公开(公告)号：US08284664B1
公开(公告)日：2012-10-09
申请号：US11863480
申请日：2007-09-28
申请人： Gunes Aybay , Harshad Nakil , Fuguang Shi , Jack Kohn , David Rowell
发明人： Gunes Aybay , Harshad Nakil , Fuguang Shi , Jack Kohn , David Rowell
IPC分类号： H04J1/16
CPC分类号： H04L67/327 , H04L41/12 , H04L49/3009 , H04L49/355 , H04L69/22
摘要： A device may receive a data unit and identify a class of the received data unit. The device may further obtain a service tag based on the class of the data unit and send the service tag and the data unit to a service module in the network device. The service module may perform a service for the data unit.
摘要翻译：设备可以接收数据单元并且识别所接收的数据单元的类别。该设备还可以基于数据单元的类别进一步获取服务标签，并将服务标签和数据单元发送到网络设备中的服务模块。服务模块可以为数据单元执行服务。

23. 发明授权

US08797897B1 Methods and apparatus with virtual identifiers for physical switches in a virtual chassis 有权
标题翻译：具有虚拟机箱中物理交换机的虚拟标识符的方法和设备
公开(公告)号：US08797897B1
公开(公告)日：2014-08-05
申请号：US13249963
申请日：2011-09-30
申请人： Megh Bhatt , Harshad Nakil , Rajashekar Reddy , Saurabh Agarwal , Shankar Ramanathan
发明人： Megh Bhatt , Harshad Nakil , Rajashekar Reddy , Saurabh Agarwal , Shankar Ramanathan
IPC分类号： H04L12/26 , H04Q11/00
CPC分类号： H04L12/26 , H04L49/00 , H04L49/65 , H04L49/70 , H04Q11/00
摘要： In some embodiments, an apparatus includes a first switch having an egress port configured to be coupled to a second switch to collectively to define a single logical entity having a set of virtual identifiers. A first set of virtual identifiers from the set of virtual identifiers is associated with the first switch, a second set of virtual identifiers from the set of virtual identifiers is associated with the second switch. The first switch is configured to receive a forwarding table associating a first set of destination addresses with a set of identifiers local to the first switch and associating a second set of destination addresses with a set of identifiers local to the second switch. Each identifier from the first set of identifiers is uniquely associated the first set of virtual identifiers. Each identifier from the set of identifiers is uniquely associated the second set of virtual identifiers.
摘要翻译：在一些实施例中，设备包括具有出口端口的第一交换机，该出口端口被配置为耦合到第二交换机以共同定义具有一组虚拟标识符的单个逻辑实体。来自该组虚拟标识符的第一组虚拟标识符与第一交换机相关联，来自该组虚拟标识符的第二组虚拟标识符与第二交换机相关联。第一交换机被配置为接收将第一组目的地地址与第一交换机本地的一组标识符相关联的转发表，并将第二组目的地址与第二交换机本地的一组标识符相关联。来自第一组标识符的每个标识符与第一组虚拟标识符唯一相关联。来自标识符集合的每个标识符与第二组虚拟标识符唯一地相关联。

24. 发明申请

US20120110206A1 AUTOMATIC AGGREGATION OF INTER-DEVICE PORTS/LINKS IN A VIRTUAL DEVICE 有权
标题翻译：自动聚合虚拟设备中的设备端口/链路
公开(公告)号：US20120110206A1
公开(公告)日：2012-05-03
申请号：US13349441
申请日：2012-01-12
申请人： Megh BHATT , Harshad Nakil , Rajashekar Reddy , Saurabh Agarwal , Sai Ganesh Sitharaman
发明人： Megh BHATT , Harshad Nakil , Rajashekar Reddy , Saurabh Agarwal , Sai Ganesh Sitharaman
IPC分类号： G06F15/173
CPC分类号： H04L45/02 , H04L43/0811 , H04L45/245 , H04L67/10 , Y02D50/30
摘要： A virtual device includes multiple devices connected to operate as a single device. A first one of the devices is configured to determine that the first device connects to a second one of the devices via a first link; identify a second link; determine that the second link connects the first device to the second device; and automatically aggregate the first link and the second link to form a link aggregation with the second device based on determining that the first device connects to the second device via both the first and second links. The first device is further configured to transmit packets to the second device via the first and second links of the link aggregation.
摘要翻译：虚拟设备包括连接以作为单个设备操作的多个设备。第一设备被配置为确定第一设备经由第一链路连接到设备中的第二设备; 识别第二个链接; 确定所述第二链路将所述第一设备连接到所述第二设备; 并且基于确定所述第一设备经由所述第一和第二链路连接到所述第二设备，自动聚合所述第一链路和所述第二链路以与所述第二设备形成链路聚合。第一设备还被配置为经由链路聚合的第一和第二链路向第二设备传送分组。

25. 发明授权

US08387112B1 Automatic software update on network devices 有权
公开(公告)号：US08387112B1
公开(公告)日：2013-02-26
申请号：US12260758
申请日：2008-10-29
申请人： Ashish Ranjan , Harshad Nakil
发明人： Ashish Ranjan , Harshad Nakil
IPC分类号： G06F21/00
CPC分类号： G06F8/61 , G06F8/71 , G06F21/57 , H04L61/2015 , H04L67/34
摘要： A method may include contacting, by a network device, another device to obtain at least one of a network address, authentication, or authorization, receiving, from the other device, software update information that identifies an up-to-date software that the network device should have installed and location information that identifies a location from which to retrieve the up-to-date software, comparing, by the network device, the software update information to software information that identifies software currently installed on the network device, retrieving, by the network device, the up-to-date software based on the software update information and the location information when the software update information and the software information do not match, and auto-installing, by the network device, the up-to-date software.

26. 发明申请

US20110161489A1 AUTOMATIC AGGREGATION OF INTER-DEVICE PORTS/LINKS IN A VIRTUAL DEVICE 有权
标题翻译：自动聚合虚拟设备中的设备端口/链路
公开(公告)号：US20110161489A1
公开(公告)日：2011-06-30
申请号：US12651351
申请日：2009-12-31
申请人： Megh Bhatt , Harshad Nakil , Rajashekar Reddy , Saurabh Agarwal , Sai Ganesh Sitharaman
发明人： Megh Bhatt , Harshad Nakil , Rajashekar Reddy , Saurabh Agarwal , Sai Ganesh Sitharaman
IPC分类号： G06F15/173 , G06F15/16
CPC分类号： H04L45/02 , H04L43/0811 , H04L45/245 , H04L67/10 , Y02D50/30
摘要： A virtual device includes multiple devices connected to operate as a single device. A first one of the devices is configured to determine that the first device connects to a second one of the devices via a first link; identify a second link; determine that the second link connects the first device to the second device; and automatically aggregate the first link and the second link to form a link aggregation with the second device based on determining that the first device connects to the second device via both the first and second links. The first device is further configured to transmit packets to the second device via the first and second links of the link aggregation.
摘要翻译：虚拟设备包括连接以作为单个设备操作的多个设备。第一设备被配置为确定第一设备经由第一链路连接到设备中的第二设备; 识别第二个链接; 确定所述第二链路将所述第一设备连接到所述第二设备; 并且基于确定所述第一设备经由所述第一和第二链路连接到所述第二设备，自动聚合所述第一链路和所述第二链路以与所述第二设备形成链路聚合。第一设备还被配置为经由链路聚合的第一和第二链路向第二设备传送分组。

27. 发明授权

US08122127B2 Automatic aggregation of inter-device ports/links in a virtual device 有权
标题翻译：在虚拟设备中自动聚合设备间端口/链路
公开(公告)号：US08122127B2
公开(公告)日：2012-02-21
申请号：US12651351
申请日：2009-12-31
申请人： Megh Bhatt , Harshad Nakil , Rajashekar Reddy , Saurabh Agarwal , Sai Ganesh Sitharaman
发明人： Megh Bhatt , Harshad Nakil , Rajashekar Reddy , Saurabh Agarwal , Sai Ganesh Sitharaman
IPC分类号： G06F15/173
CPC分类号： H04L45/02 , H04L43/0811 , H04L45/245 , H04L67/10 , Y02D50/30
摘要： A virtual device includes multiple devices connected to operate as a single device. A first one of the devices is configured to determine that the first device connects to a second one of the devices via a first link; identify a second link; determine that the second link connects the first device to the second device; and automatically aggregate the first link and the second link to form a link aggregation with the second device based on determining that the first device connects to the second device via both the first and second links. The first device is further configured to transmit packets to the second device via the first and second links of the link aggregation.
摘要翻译：虚拟设备包括连接以作为单个设备操作的多个设备。第一设备被配置为确定第一设备经由第一链路连接到设备中的第二设备; 识别第二个链接; 确定所述第二链路将所述第一设备连接到所述第二设备; 并且基于确定所述第一设备经由所述第一和第二链路连接到所述第二设备，自动聚合所述第一链路和所述第二链路以与所述第二设备形成链路聚合。第一设备还被配置为经由链路聚合的第一和第二链路向第二设备传送分组。

28. 发明授权

US08958337B1 Scalable method to support multi-device link aggregation 有权
标题翻译：可扩展的方法来支持多设备链路聚合
公开(公告)号：US08958337B1
公开(公告)日：2015-02-17
申请号：US12977493
申请日：2010-12-23
申请人： Shankar Ramanathan , Srinivas Chinnam , Manish Singh , Harshad Nakil
发明人： Shankar Ramanathan , Srinivas Chinnam , Manish Singh , Harshad Nakil
IPC分类号： H04L12/28 , G06F15/16 , H04L12/24 , H04L12/801
CPC分类号： H04L12/24 , H04L41/00 , H04L45/02 , H04L45/245 , H04L47/10 , Y02D50/30
摘要： A network device determines whether the network device has a local link for a link aggregation group (LAG), and identifies, when the network device has a local link for the LAG, the network device as a designated forwarder for the LAG. The network device also identifies, when the network device does not have a local link for the LAG, a closest network device to the network device, with a local link for the LAG, as the designated forwarder for the LAG.
摘要翻译：网络设备确定网络设备是否具有用于链路聚合组（LAG）的本地链路，并且当网络设备具有用于LAG的本地链路时，将网络设备识别为用于LAG的指定转发器。当网络设备没有用于LAG的本地链路时，网络设备还识别到具有用于LAG的本地链路的网络设备的最接近的网络设备作为LAG的指定转发器。

29. 发明授权

US08369211B2 Network distribution prevention when virtual chassis system undergoes splits and merges 有权
标题翻译：虚拟机箱系统经历分割和合并时的网络分布预防
公开(公告)号：US08369211B2
公开(公告)日：2013-02-05
申请号：US12640667
申请日：2009-12-17
申请人： Saurabh Agarwal , Rajashekar Reddy , Harshad Nakil , Megh Bhatt
发明人： Saurabh Agarwal , Rajashekar Reddy , Harshad Nakil , Megh Bhatt
IPC分类号： G01R31/08
CPC分类号： G06F11/2002 , H04L41/0677 , H04L41/0893 , H04L69/40
摘要： A method performed by network devices that includes operating in a normal mode, where the network devices form a virtual chassis that corresponds to a single logical network device; detecting when a failure within the virtual chassis occurs; executing a splitting process to form one or more new virtual chassis in correspondence to the failure; determining whether one of the one or more new virtual chassis operates as a functioning virtual chassis based on whether at least one of a set of criteria is satisfied, where the functioning virtual chassis operates according to resources configured for the virtual chassis; and operating as a nonfunctioning virtual chassis when it is determined that the one of the one or more virtual chassis does not satisfy the at least one of the set of criteria, where the nonfunctioning virtual chassis operates in a pass-through mode.
摘要翻译：网络设备执行的方法，其包括以正常模式操作，其中网络设备形成对应于单个逻辑网络设备的虚拟机箱; 检测虚拟机箱内的故障发生时间; 执行拆分过程以形成与故障相对应的一个或多个新的虚拟底盘; 基于是否满足一组标准中的至少一个来确定所述一个或多个新的虚拟机架中的一个虚拟机是否起作为功能的虚拟机架的作用，其中所述功能性虚拟机架根据为所述虚拟机架配置的资源而运行; 并且当确定所述一个或多个虚拟机箱中的一个不满足所述一组标准中的至少一个时，其中所述不起作用的虚拟机箱以直通模式操作。

30. 发明授权

US07406567B1 Algorithm to improve packet processing performance using existing caching schemes 有权
标题翻译：使用现有缓存方案提高数据包处理性能的算法
公开(公告)号：US07406567B1
公开(公告)日：2008-07-29
申请号：US10291894
申请日：2002-11-08
申请人： Harshad Nakil , Rajashekar Reddy , Hampapur Ajay , Nipa Kumar , Radesh Manian
发明人： Harshad Nakil , Rajashekar Reddy , Hampapur Ajay , Nipa Kumar , Radesh Manian
IPC分类号： G06F12/00
CPC分类号： G06F12/084 , G06F12/0835 , G06F12/109
摘要： A system and method for improving the speed of packet switching in a routing platform that maps shared I/O memory into two address spaces. The first address space is mapped with the cache attribute and uses the cache write through attribute. Addresses in this address space are not equal to the physical address in the shared I/O memory and are translated to the physical addresses. Code executed by the CPU to switch packets utilizes the first address space to access packet data. The second address space is mapped with the non-cache attribute and addresses in this space are equal to the physical addresses in the shared I/O memory. The second address space is utilized by I/O devices when accessing shared I/O memory. Addresses of buffers for storing packet data in the shared I/O memory are converted from the first address space to the second address space when given to I/O devices.
摘要翻译：一种用于提高将共享I / O存储器映射到两个地址空间的路由平台中的分组交换速度的系统和方法。第一个地址空间与缓存属性映射，并使用缓存写入通过属性。该地址空间中的地址不等于共享I / O存储器中的物理地址，并转换为物理地址。由CPU执行切换数据包的代码利用第一个地址空间来访问数据包数据。第二个地址空间与非高速缓存属性映射，该空间中的地址等于共享I / O存储器中的物理地址。访问共享I / O存储器时，I / O设备利用第二个地址空间。将I / O存储器中的分组数据存储的缓冲器的地址从给定给I / O设备的第一地址空间转换为第二地址空间。

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