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1. 发明申请

US20140050077A1 HITLESS PRUNING PROTOCOL UPGRADE ON SINGLE SUPERVISOR NETWORK DEVICES 有权
标题翻译：单一监控网络设备无效打包协议升级
公开(公告)号：US20140050077A1
公开(公告)日：2014-02-20
申请号：US13589333
申请日：2012-08-20
申请人： Siddharth Kasat , Christian Sasso , Ankur Goyal , Shivaranjani Sankara Krishnan , Yibin Yang
发明人： Siddharth Kasat , Christian Sasso , Ankur Goyal , Shivaranjani Sankara Krishnan , Yibin Yang
IPC分类号： H04L29/14
CPC分类号： H04L69/40 , H04L12/4641
摘要： In Service Software Upgrade (ISSU) permits administrators to upgrade the control plane software of a network device without any disruption to the traffic passing through the data plane of the network device. However, because the control plane is unavailable, the network device is unable to transmit periodic messages to re-subscribe to specific VLANs. This may result in a service outage in end devices that rely on the network device to receive data assigned to those VLANs. To prevent the network device from being unsubscribed from the VLANs while the control plane is unavailable, the network device may transmit a control plane message before starting ISSU. Once a neighboring network device receives the message, the neighboring device delays unsubscribing the network device until the control plane is again available. Thus, the network device may perform ISSU without the possibility of data traffic not reaching end devices.
摘要翻译：在服务软件升级（ISSU）中，管理员可以升级网络设备的控制平面软件，而不会对通过网络设备数据平面的流量造成任何干扰。然而，由于控制平面不可用，网络设备无法传输周期性消息以重新订阅特定的VLAN。这可能导致依赖于网络设备的终端设备中的服务中断来接收分配给这些VLAN的数据。为了防止网络设备在控制平面不可用时从VLAN中取消订阅，网络设备可以在开始ISSU之前发送控制平面消息。一旦相邻网络设备接收到消息，相邻设备会延迟取消订阅网络设备，直到控制平面再次可用。因此，网络设备可以执行ISSU而没有数据业务没有到达终端设备的可能性。

2. 发明授权

US09131014B2 Hitless pruning protocol upgrade on single supervisor network devices 有权
标题翻译：在单管理网络设备上无缝修剪协议升级
公开(公告)号：US09131014B2
公开(公告)日：2015-09-08
申请号：US13589333
申请日：2012-08-20
申请人： Siddharth Kasat , Christian Sasso , Ankur Goyal , Shivaranjani Sankara Krishnan , Yibin Yang
发明人： Siddharth Kasat , Christian Sasso , Ankur Goyal , Shivaranjani Sankara Krishnan , Yibin Yang
IPC分类号： G01R31/08 , H04L12/28 , H04J3/16 , H04L29/14 , H04L12/46
CPC分类号： H04L69/40 , H04L12/4641
摘要： In Service Software Upgrade (ISSU) permits administrators to upgrade the control plane software of a network device without any disruption to the traffic passing through the data plane of the network device. However, because the control plane is unavailable, the network device is unable to transmit periodic messages to re-subscribe to specific VLANs. This may result in a service outage in end devices that rely on the network device to receive data assigned to those VLANs. To prevent the network device from being unsubscribed from the VLANs while the control plane is unavailable, the network device may transmit a control plane message before starting ISSU. Once a neighboring network device receives the message, the neighboring device delays unsubscribing the network device until the control plane is again available. Thus, the network device may perform ISSU without the possibility of data traffic not reaching end devices.
摘要翻译：在服务软件升级（ISSU）中，管理员可以升级网络设备的控制平面软件，而不会对通过网络设备数据平面的流量造成任何干扰。然而，由于控制平面不可用，网络设备无法传输周期性消息以重新订阅特定的VLAN。这可能导致依赖于网络设备的终端设备中的服务中断来接收分配给这些VLAN的数据。为了防止网络设备在控制平面不可用时从VLAN中取消订阅，网络设备可以在开始ISSU之前发送控制平面消息。一旦相邻网络设备接收到消息，相邻设备会延迟取消订阅网络设备，直到控制平面再次可用。因此，网络设备可以执行ISSU而没有数据业务没有到达终端设备的可能性。

3. 发明授权

US09137119B2 Efficient handling of multi-destination traffic in an internet protocol fabric data center 有权
标题翻译：在互联网协议架构数据中心高效地处理多目标流量
公开(公告)号：US09137119B2
公开(公告)日：2015-09-15
申请号：US13788602
申请日：2013-03-07
申请人： Yibin Yang , Liqin Dong , Chiajen Tsai
发明人： Yibin Yang , Liqin Dong , Chiajen Tsai
IPC分类号： G06F15/16 , H04L12/24 , H04L12/751 , H04L12/753 , H04L12/703 , H04L12/715 , H04L12/761
CPC分类号： H04L41/12 , H04L45/02 , H04L45/04 , H04L45/16 , H04L45/28 , H04L45/48
摘要： A method is provided in one example embodiment and includes establishing at least one fixed topology distribution tree in a network, where the fixed topology distribution tree comprises one root node and a plurality of leaf nodes connected to the root node; maintaining at the root node an indication of multicast group interests advertised by the leaf nodes; and pruning traffic at the root node based on the advertised multicast group interests of the leaf nodes. In one embodiment, the root node is a spine switch and each of the leaf nodes is a leaf switch and each of the leaf nodes is connected to the root node by a single hop.
摘要翻译：在一个示例实施例中提供了一种方法，并且包括在网络中建立至少一个固定拓扑分布树，其中固定拓扑分布树包括连接到根节点的一个根节点和多个叶节点; 在根节点维护叶节点广播的组播组兴趣的指示; 并根据叶节点的广播组播组利益修剪根节点的流量。在一个实施例中，根节点是脊交换机，并且每个叶节点是叶交换机，并且每个叶节点通过单跳连接到根节点。

4. 发明申请

US20140269695A1 System for Conversational Link Aggregation Resolution in a Network Switch 有权
标题翻译：网络交换机中对话链路聚合解析系统
公开(公告)号：US20140269695A1
公开(公告)日：2014-09-18
申请号：US13839476
申请日：2013-03-15
申请人： Chiajen Tsai , Yibin Yang , Rajagopalan Janakiraman
发明人： Chiajen Tsai , Yibin Yang , Rajagopalan Janakiraman
IPC分类号： H04L12/741
CPC分类号： H04L45/745 , H04L45/245 , H04L49/55 , Y02D50/30
摘要： Some implementations provide a method that includes: (i) receiving a list of logic link aggregations (LAGs) within a computer network, the list identifying a single physical egress port associated with each LAG; (ii) receiving a data unit; (iii) identifying that the data unit is addressed to a remote LAG included in the list of logic link aggregations; (iv) establishing a connection with the remote LAG; (v) downloading a detailed data describing the remote LAG from a control plane, the detailed data including a list of multiple available physical egress ports associated with the remote LAG, and; (vi) upon downloading the detailed data, incorporating the detailed data into the list of LAGs in association with an entry identifying the remote LAG.
摘要翻译：一些实现提供了一种方法，其包括：（i）在计算机网络内接收逻辑链路聚合（LAG）的列表，所述列表标识与每个LAG相关联的单个物理出口; （ii）接收数据单元; （iii）识别数据单元被寻址到包括在逻辑链路聚合列表中的远程LAG; （iv）与远程LAG建立连接; （v）从控制平面下载描述所述远程LAG的详细数据，所述详细数据包括与所述远程LAG相关联的多个可用物理出口的列表，以及; （vi）在下载详细数据时，将详细数据与标识远程LAG的条目相关联地结合到LAG列表中。

5. 发明授权

US07764687B1 Longest prefix match search technique 有权
标题翻译：最长前缀匹配搜索技术
公开(公告)号：US07764687B1
公开(公告)日：2010-07-27
申请号：US10401904
申请日：2003-03-28
申请人： Biao Gao , Yibin Yang , Charles Chen
发明人： Biao Gao , Yibin Yang , Charles Chen
IPC分类号： H04L12/56
CPC分类号： H04L45/04 , H04L45/7457
摘要： A router identifies in a data packet an address of a network device. An algorithm determines that the address and a first prefix in a tree data structure match up to a first mask length of the first prefix. The algorithm maintains the first prefix in a temporary storage location if there is a match, and determines whether the address and a second prefix in the tree data structure match up to a second mask length of the second prefix, wherein an external node of the second prefix is linked below an external node of the first prefix, and wherein the second mask length is longer than the first mask length. The algorithm maintains the second prefix as a better match of the address, if the address and the second prefix match up to the mask length of the second prefix.
摘要翻译：路由器在数据包中标识网络设备的地址。算法确定树数据结构中的地址和第一前缀匹配到第一前缀的第一掩码长度。如果存在匹配，该算法将第一前缀保持在临时存储位置，并且确定树数据结构中的地址和第二前缀是否匹配到第二前缀的第二掩码长度，其中第二前缀的外部节点前缀链接在第一前缀的外部节点的下方，并且其中第二掩码长度比第一掩码长度长。如果地址和第二个前缀匹配到第二个前缀的掩码长度，则该算法将第二个前缀保持为地址的更好的匹配。

6. 发明授权

US07031388B2 System for and method of sharpness enhancement for coded digital video 失效
公开(公告)号：US07031388B2
公开(公告)日：2006-04-18
申请号：US10139175
申请日：2002-05-06
申请人： Yibin Yang , Lilla Boroczky
发明人： Yibin Yang , Lilla Boroczky
IPC分类号： H04N1/66
CPC分类号： G06T5/003 , G06T5/20 , G06T2207/10016 , H04N19/117 , H04N19/139 , H04N19/14 , H04N19/142 , H04N19/159 , H04N19/162 , H04N19/176 , H04N19/182 , H04N19/86
摘要： A method and system for calculating a UME for each pixel in a frame of video data. A system for enhancing sharpness of a coded digital video signal representative a frame of block-based data is provided, comprising: a system for calculating a UME of each pixel in the frame in accordance with a frame type, wherein the calculating system includes: a mechanism that defines local spatial features in the frame; a mechanism that analyzes block-based motion estimation for the frame; a mechanism that detects a scene change in the frame; and a sharpness enhancer that improves sharpness to a decoded version of the digital video signal based on said UME.

7. 发明授权

US09374298B2 Grace state and pacing in link aggregation 有权
标题翻译： Grace状态和起搏在链路聚合
公开(公告)号：US09374298B2
公开(公告)日：2016-06-21
申请号：US13466657
申请日：2012-05-08
申请人： Chia Alex Tsai , Yuchen Zhou , Rajagopalan Janakiraman , Yibin Yang
发明人： Chia Alex Tsai , Yuchen Zhou , Rajagopalan Janakiraman , Yibin Yang
IPC分类号： H04L12/709 , H04L12/703
CPC分类号： H04L45/245 , H04L45/28 , Y02D50/30
摘要： In one embodiment, one or more indicia of stress are monitored. Based on the one or more indicia of stress, it is determined a stress condition exists. In response to the stress condition, one or more link aggregation actors and partners are caused to enter a grace state for a grace period. While the one or more link aggregation actors and partners are in the grace state, link aggregation formation is paced on a plurality of links by delaying formation of one or more new link aggregation groups on the plurality of links until a hold is released. Upon expiration of the grace period, the grace state is exited.
摘要翻译：在一个实施例中，监视一个或多个应力标记。基于一个或多个应力标记，确定存在应力条件。为了应对压力情况，一个或多个链路聚合行为者和伙伴被引入宽限期的宽限期。当一个或多个链路聚合参与者和伙伴处于宽限期状态时，通过延迟多个链路上的一个或多个新的链路聚合组的形成直到释放保持，在多个链路上进行链路聚合形成。在宽限期结束时，退出恩典状态。

8. 发明授权

US08861403B2 Interconnecting segmented layer two network for cloud switching 有权
标题翻译：互连分层二层网络进行云交换
公开(公告)号：US08861403B2
公开(公告)日：2014-10-14
申请号：US13421572
申请日：2012-03-15
申请人： Alex Tsai , Yibin Yang , Debashis Patnala Rao
发明人： Alex Tsai , Yibin Yang , Debashis Patnala Rao
IPC分类号： H04L12/28 , H04L12/46 , H04L12/44 , H04L12/24
CPC分类号： H04L12/462 , H04L12/44 , H04L41/0803 , H04L49/15 , H04L49/602
摘要： In one embodiment, a layer-2 network that includes a cloud switch is partitioned into a plurality of segments, each segment including one or more cloud switch domains that are coupled via a logical port to a corresponding one of a plurality of internal logical shared media links. One of the internal logical shared media links is provisioned as a hub. One or more remaining internal logical shared media links are defaulted to be spokes. A spanning tree protocol (STP) is executed within each segment. The logical port of each cloud switch domain advertises a pseudo root bridge identifier (ID) to cause the internal logical shared media link to appear attached to a Root. The advertised pseudo root bridge ID of the hub is chosen to have a higher priority than the pseudo root bridge ID of the spokes to establish a hub and spoke relationship among the segments.
摘要翻译：在一个实施例中，包括云交换机的第2层网络被划分成多个段，每个段包括经由逻辑端口耦合到多个内部逻辑共享介质中的相应一个的一个或多个云交换域链接。内部逻辑共享媒体链接之一被配置为集线器。一个或多个剩余的内部逻辑共享媒体链接默认为轮辐。在每个段内执行生成树协议（STP）。每个云交换机域的逻辑端口通告伪根桥标识符（ID），以使内部逻辑共享媒体链路显示附加到根。所选择的轮询的伪根桥ID被选择为具有比轮辐的伪根桥ID更高的优先级，以在段之间建立轮毂和轮辐关系。

9. 发明授权

US08855015B2 Techniques for generic pruning in a trill network 有权
标题翻译：技术在通用修剪在颤音网络
公开(公告)号：US08855015B2
公开(公告)日：2014-10-07
申请号：US13586208
申请日：2012-08-15
申请人： Yibin Yang , Chia Tsai
发明人： Yibin Yang , Chia Tsai
IPC分类号： H04L12/28
CPC分类号： H04L12/462
摘要： Techniques are provided for managing and distributing communications in a network. At a first switch device arranged in a first configuration in a network, a set of one or more network attributes are determined, which are associated with network communications that the first switch device is interested in receiving from other network devices. The first switch device sends to a controller device an attribute interest message that informs the controller device of the set of network attributes. The first switch device receives a mapping of the network attributes in to one or more identifiers. The identifiers are included in a header of subsequent frames sent in the network. An identifier interest message is then sent to a second switch device arranged in a second network configuration in the network to inform the second switch device of identifiers of the network attributes of which the first device has an interest.
摘要翻译：提供技术来管理和分发网络中的通信。在网络中以第一配置排列的第一交换设备，确定与第一交换设备有兴趣从其他网络设备接收的网络通信相关联的一个或多个网络属性的集合。第一交换机设备向控制器设备发送属性兴趣消息，该消息向控制器设备通知该组网络属性。第一交换设备接收网络属性到一个或多个标识符的映射。标识符被包括在网络中发送的后续帧的报头中。然后，将标识符兴趣消息发送到布置在网络中的第二网络配置中的第二交换设备，以向第二交换设备通知第一设备具有兴趣的网络属性的标识符。

10. 发明授权

US07894342B2 Efficient pruning of virtual services in bridged computer networks 有权
标题翻译：桥接计算机网络中虚拟服务的有效修剪
公开(公告)号：US07894342B2
公开(公告)日：2011-02-22
申请号：US12394924
申请日：2009-02-27
申请人： Norman W. Finn , Munish Mehta , Yibin Yang
发明人： Norman W. Finn , Munish Mehta , Yibin Yang
IPC分类号： G01R31/08 , G06F15/173
CPC分类号： H04L12/4625
摘要： In one embodiment, a bridge in a computer network may execute a spanning tree protocol (STP) for network topology and a registration protocol for traffic control of virtual connections (e.g., EVCs) at the bridge. For any gateway ports of the bridge inter-connected with a provider network, the bridge may generate “fake” received registration protocol join messages for a particular virtual connection at the gateway port. The bridge may then either i) propagate the join messages, in response to the gateway port being in a forwarding state according to the STP, on other forwarding ports of the bridge, or ii) in response to the gateway port not being in a forwarding state, block propagation of the join messages to other ports of the bridge.
摘要翻译：在一个实施例中，计算机网络中的网桥可以执行用于网络拓扑的生成树协议（STP）和用于桥上虚拟连接（例如，EVC）的业务控制的注册协议。对于与提供商网络相互连接的桥的任何网关端口，桥接器可以在网关端口处针对特定虚拟连接生成“假的”接收的注册协议加入消息。桥接器然后可以i）响应于网关端口处于根据STP的转发状态在网桥的其他转发端口上传播加入消息，或者ii）响应于网关端口不处于转发状态，将连接消息块传播到网桥的其他端口。

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