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1. 发明授权

US08045474B2 Method and apparatus for tracking layer-2 (L2) resource of a switch 有权
标题翻译：用于跟踪交换机的第二层（L2）资源的方法和装置
公开(公告)号：US08045474B2
公开(公告)日：2011-10-25
申请号：US11043551
申请日：2005-01-26
申请人： Ravikanth Samprathi , Dar-Hsin Dustin Wu , Suran De Silva
发明人： Ravikanth Samprathi , Dar-Hsin Dustin Wu , Suran De Silva
IPC分类号： G01R31/08 , H04L12/28 , H04L12/66 , H04L12/40 , H04J3/16
CPC分类号： H04L43/0817 , H04L41/0213
摘要： A method and apparatus for tracking at least one Layer-2 (L2) resource of a network device is provided. The method includes monitoring software operations on the L2 resource. The method further includes monitoring the state of the L2 resource in a corresponding hardware device (e.g., the network device). The L2 resource may be at least one of a Media Access Control (MAC) address, a Virtual Local Area Network (VLAN) identifier, a MAC address, and a VLAN identifier pair.
摘要翻译：提供了一种用于跟踪网络设备的至少一个二层（L2）资源的方法和装置。该方法包括监视L2资源上的软件操作。该方法还包括监视对应的硬件设备（例如，网络设备）中的L2资源的状态。 L2资源可以是媒体访问控制（MAC）地址，虚拟局域网（VLAN）标识符，MAC地址和VLAN标识对中的至少一个。

2. 发明申请

US20060165095A1 Method and apparatus for tracking layer-2 (L2) resource of a switch 有权
标题翻译：用于跟踪交换机的第二层（L2）资源的方法和装置
公开(公告)号：US20060165095A1
公开(公告)日：2006-07-27
申请号：US11043551
申请日：2005-01-26
申请人： Ravikanth Samprathi , Dar-hsin Wu , Suran De Silva
发明人： Ravikanth Samprathi , Dar-hsin Wu , Suran De Silva
IPC分类号： H04L12/28 , H04L12/56
CPC分类号： H04L43/0817 , H04L41/0213
摘要： A method and apparatus for tracking at least one Layer-2 (L2) resource of a network device is provided. The method includes monitoring software operations on the L2 resource. The method further includes monitoring the state of the L2 resource in a corresponding hardware device (e.g., the network device). The L2 resource may be at least one of a Media Access Control (MAC) address, a Virtual Local Area Network (VLAN) identifier, a MAC address, and a VLAN identifier pair.
摘要翻译：提供了一种用于跟踪网络设备的至少一个二层（L2）资源的方法和装置。该方法包括监视L2资源上的软件操作。该方法还包括监视对应的硬件设备（例如，网络设备）中的L2资源的状态。 L2资源可以是媒体访问控制（MAC）地址，虚拟局域网（VLAN）标识符，MAC地址和VLAN标识对中的至少一个。

3. 发明授权

US07864818B2 Multinode symmetric load sharing 有权
标题翻译：多节点对称负载分担
公开(公告)号：US07864818B2
公开(公告)日：2011-01-04
申请号：US12062863
申请日：2008-04-04
申请人： Rodney Fong , Ravikanth Samprathi , Milton Xu , Suran de Silva
发明人： Rodney Fong , Ravikanth Samprathi , Milton Xu , Suran de Silva
IPC分类号： H04J3/04
CPC分类号： H04L45/00 , H04L45/24 , H04L45/245 , H04L47/125 , Y02D50/30
摘要： In one embodiment, a load-balancing algorithm ensures that both network nodes at endpoints of a group of physical links aggregated into a logical channel are using the same load-sharing algorithm and also ensures that the load-sharing algorithm is normalized so that the same flow traverses the same physical link in both directions.
摘要翻译：在一个实施例中，负载平衡算法确保聚合到逻辑信道中的一组物理链路的端点处的两个网络节点都使用相同的负载共享算法，并且还确保负载共享算法被归一化以使得相同流在两个方向上遍历相同的物理链路。

4. 发明申请

US20090252036A1 MULTINODE SYMMETRIC LOAD SHARING 有权
标题翻译： MULTINODE对称负载共享
公开(公告)号：US20090252036A1
公开(公告)日：2009-10-08
申请号：US12062863
申请日：2008-04-04
申请人： Rodney Fong , Ravikanth Samprathi , Milton Xu , Suran de Silva
发明人： Rodney Fong , Ravikanth Samprathi , Milton Xu , Suran de Silva
IPC分类号： G08C15/00
CPC分类号： H04L45/00 , H04L45/24 , H04L45/245 , H04L47/125 , Y02D50/30
摘要： In one embodiment, a load-balancing algorithm ensures that both network nodes at endpoints of a group of physical links aggregated into a logical channel are using the same load-sharing algorithm and also ensures that the load-sharing algorithm is normalized so that the same flow traverses the same physical link in both directions.
摘要翻译：在一个实施例中，负载平衡算法确保聚合到逻辑信道中的一组物理链路的端点处的两个网络节点都使用相同的负载共享算法，并且还确保负载共享算法被归一化以使得相同流在两个方向上遍历相同的物理链路。

5. 发明申请

US20070162595A1 System and method for tracking network resources 有权
标题翻译：用于跟踪网络资源的系统和方法
公开(公告)号：US20070162595A1
公开(公告)日：2007-07-12
申请号：US11330947
申请日：2006-01-11
申请人： Ravikanth Samprathi
发明人： Ravikanth Samprathi
IPC分类号： G06F15/173
CPC分类号： H04L43/00 , H04L41/06 , H04L43/0817
摘要： A system for tracking resource usage in network. In a specific embodiment, the system includes a memory in a distributed-forwarding switch that maintains resource evolution information. A module, which communicates with the memory, is adapted to update the resource evolution information when the resource changes or information associated with the resource changes. In a more specific embodiment, the memory is implemented via plural resource-tracking hash tables associated with forwarding engines in switches connected to a network. Each hash table communicates with a corresponding resource-tracking module that monitors changes in accompanying forwarding engines and updates the hash tables in response thereto. The resource-tracking modules may also selectively provide information in the resource-tracking modules to a user interface in response to queries or control signals originating from a user interface. The changes in one forwarding engine may propagate to other resource-tracking hash tables associated with other forwarding engines located in a given switch or in different switches across the network.
摘要翻译：用于跟踪网络资源使用情况的系统。在具体实施例中，系统包括维护资源演进信息的分布式转发交换机中的存储器。与存储器进行通信的模块适于在资源变化或与资源相关联的信息改变时更新资源演进信息。在更具体的实施例中，通过与连接到网络的交换机中的转发引擎相关联的多个资源跟踪哈希表来实现该存储器。每个散列表与相应的资源跟踪模块进行通信，该模块监视伴随的转发引擎中的变化并响应于此更新哈希表。资源跟踪模块还可以响应于源自用户界面的查询或控制信号，将资源跟踪模块中的信息选择性地提供给用户界面。一个转发引擎中的更改可以传播到与位于给定交换机中的其他转发引擎相关联的其他资源跟踪哈希表，或跨越网络的不同交换机。

6. 发明申请

US20070253346A1 Detection of potential forwarding loops in bridged networks 有权
标题翻译：检测桥接网络中的潜在转发环路
公开(公告)号：US20070253346A1
公开(公告)日：2007-11-01
申请号：US11416348
申请日：2006-05-01
申请人： Hien Nguyen , Rodney Fong , Ravikanth Samprathi , Stanley Tang
发明人： Hien Nguyen , Rodney Fong , Ravikanth Samprathi , Stanley Tang
IPC分类号： H04L12/28
CPC分类号： H04L12/462 , H04L45/02 , H04L45/18 , H04L45/48 , H04L45/54
摘要： Disclosed are, inter alia, methods, apparatus, data structures, computer-readable media, mechanisms, and means for detecting potential forwarding loops in bridged networks. A switch monitors the movement of packet addresses in the forwarding table to different ports. If the port associated with an address changes multiple times in a short time duration, then a potential forwarding loop is detected, and a loop corrector is notified to take appropriate action to correct the problem, such as, but not limited to changing the state of a port to a blocking state or disabling an interface, etc. If there are multiple movements outside the short time duration, they may be correct movements adjusting to the actual reconfiguration of a network, and thus, these movements are effectively filtered out of consideration.
摘要翻译：公开的方法，装置，数据结构，计算机可读介质，机制和用于检测桥接网络中的潜在转发环路的装置。交换机监控转发表中分组地址到不同端口的移动。如果与地址相关联的端口在短时间内改变多次，则检测到潜在的转发环路，并通知循环校正器以采取适当的动作来纠正该问题，例如但不限于改变端口到阻塞状态或禁用接口等。如果在短时间内存在多个移动，则它们可以是适应网络的实际重新配置的正确移动，因此，这些移动被有效地滤除掉。

7. 发明授权

US08458319B2 System and method for tracking network resources 有权
标题翻译：用于跟踪网络资源的系统和方法
公开(公告)号：US08458319B2
公开(公告)日：2013-06-04
申请号：US11330947
申请日：2006-01-11
申请人： Ravikanth Samprathi
发明人： Ravikanth Samprathi
IPC分类号： G06F11/00
CPC分类号： H04L43/00 , H04L41/06 , H04L43/0817
摘要： A system for tracking resource usage in network. In a specific embodiment, the system includes a memory in a distributed-forwarding switch that maintains resource evolution information. A module, which communicates with the memory, is adapted to update the resource evolution information when the resource changes or information associated with the resource changes. In a more specific embodiment, the memory is implemented via plural resource-tracking hash tables associated with forwarding engines in switches connected to a network. Each hash table communicates with a corresponding resource-tracking module that monitors changes in accompanying forwarding engines and updates the hash tables in response thereto. The resource-tracking modules may also selectively provide information in the resource-tracking modules to a user interface in response to queries or control signals originating from a user interface. The changes in one forwarding engine may propagate to other resource-tracking hash tables associated with other forwarding engines located in a given switch or in different switches across the network.
摘要翻译：用于跟踪网络资源使用情况的系统。在具体实施例中，系统包括维护资源演进信息的分布式转发交换机中的存储器。与存储器进行通信的模块适于在资源变化或与资源相关联的信息改变时更新资源演进信息。在更具体的实施例中，通过与连接到网络的交换机中的转发引擎相关联的多个资源跟踪哈希表来实现该存储器。每个散列表与相应的资源跟踪模块进行通信，该模块监视伴随的转发引擎中的变化并响应于此更新哈希表。资源跟踪模块还可以响应于源自用户界面的查询或控制信号，将资源跟踪模块中的信息选择性地提供给用户界面。一个转发引擎中的更改可以传播到与位于给定交换机中的其他转发引擎相关联的其他资源跟踪哈希表，或跨越网络的不同交换机。

8. 发明申请

US20090238179A1 DESTINATION MAC AGING OF ENTRIES IN A LAYER 2 (L2) FORWARDING TABLE 有权
标题翻译：第2层（L2）前进表中的目标MAC老化
公开(公告)号：US20090238179A1
公开(公告)日：2009-09-24
申请号：US12050479
申请日：2008-03-18
申请人： Ravikanth Samprathi
发明人： Ravikanth Samprathi
IPC分类号： H04L12/56
CPC分类号： H04L12/4625 , H04L45/02 , H04L45/021 , H04L45/66
摘要： In one embodiment, entries in an address table of the forwarding engine in a linecard or supervisor are updated to a current time value when the MAC address in the entry matches the destination MAC address of a received packet to prevent flooding if the linecard or supervisor is a non-ingress linecard or supervisor of an asymmetrically routed flow.
摘要翻译：在一个实施例中，当条目中的MAC地址与接收到的分组的目的地MAC地址匹配时，将线路卡或主管中的转发引擎的地址表中的条目更新为当前时间值，以防止泛滥，如果线卡或主管是不对称路由流的非入口线路卡或主管。

9. 发明授权

US08249065B2 Destination MAC aging of entries in a Layer 2 (L2) forwarding table 有权
标题翻译：二层（L2）转发表中的条目的目的MAC老化
公开(公告)号：US08249065B2
公开(公告)日：2012-08-21
申请号：US12050479
申请日：2008-03-18
申请人： Ravikanth Samprathi
发明人： Ravikanth Samprathi
IPC分类号： H04L12/28
CPC分类号： H04L12/4625 , H04L45/02 , H04L45/021 , H04L45/66
摘要： In one embodiment, entries in an address table of the forwarding engine in a linecard or supervisor are updated to a current time value when the MAC address in the entry matches the destination MAC address of a received packet to prevent flooding if the linecard or supervisor is a non-ingress linecard or supervisor of an asymmetrically routed flow.
摘要翻译：在一个实施例中，当条目中的MAC地址与接收到的分组的目的地MAC地址匹配时，将线路卡或主管中的转发引擎的地址表中的条目更新为当前时间值，以防止泛滥，如果线卡或主管是不对称路由流的非入口线路卡或主管。

10. 发明授权

US07453818B2 Detection of potential forwarding loops in bridged networks 有权
标题翻译：检测桥接网络中的潜在转发环路
公开(公告)号：US07453818B2
公开(公告)日：2008-11-18
申请号：US11416348
申请日：2006-05-01
申请人： Hien Nguyen , Rodney Fong , Ravikanth Samprathi , Stanley Tang
发明人： Hien Nguyen , Rodney Fong , Ravikanth Samprathi , Stanley Tang
IPC分类号： G06F11/00
CPC分类号： H04L12/462 , H04L45/02 , H04L45/18 , H04L45/48 , H04L45/54
摘要： Potential forwarding loops in bridged networks are detected. A switch monitors the movement of packet addresses in the forwarding table to different ports. If the port associated with an address changes multiple times in a short time duration, then a potential forwarding loop is detected, and a loop corrector is notified to take appropriate action to correct the problem, such as, but not limited to changing the state of a port to a blocking state or disabling an interface, etc. If there are multiple movements outside the short time duration, they may be correct movements adjusting to the actual reconfiguration of a network, and thus, these movements are effectively filtered out of consideration.
摘要翻译：检测桥接网络中的潜在转发环路。交换机监控转发表中分组地址到不同端口的移动。如果与地址相关联的端口在短时间内改变多次，则检测到潜在的转发环路，并通知循环校正器以采取适当的动作来纠正该问题，例如但不限于改变端口到阻塞状态或禁用接口等。如果在短时间内存在多个移动，则它们可以是适应网络的实际重新配置的正确移动，因此，这些移动被有效地滤除掉。

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