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1. 发明授权

US08812708B2 Transient unpruning for faster layer-two convergence 有权
标题翻译：瞬时取消运行，实现更快的二层收敛
公开(公告)号：US08812708B2
公开(公告)日：2014-08-19
申请号：US13189334
申请日：2011-07-22
申请人： Chiajen Tsai , Norman Finn , Yibin Yang , Nagabhushan K. Channabasappa , Debashis Patnala Rao
发明人： Chiajen Tsai , Norman Finn , Yibin Yang , Nagabhushan K. Channabasappa , Debashis Patnala Rao
IPC分类号： G06F15/16
CPC分类号： H04L41/0816 , H04L12/4687 , H04L12/4695 , H04L41/12 , H04L45/66
摘要： In one embodiment, a method includes detecting a change in network topology and broadcasting a transient unconditional unpruning message to all nodes in the network. The message is configured to instruct each network element receiving the message to start a phase timer in response to the broadcast message; unprune its operational ports; and, upon expiration of the phase timer, prune its ports in accordance with the results of a pruning protocol.
摘要翻译：在一个实施例中，一种方法包括检测网络拓扑的变化并且向网络中的所有节点广播瞬时无条件的取消运行消息。消息被配置为响应于广播消息指示接收消息的每个网络元件开始相位定时器; 解除其运营端口; 并且在相位计时器到期后，根据修剪协议的结果修剪其端口。

2. 发明申请

US20130024580A1 Transient Unpruning for Faster Layer-Two Convergence 有权
标题翻译：瞬态恢复更快的二层收敛
公开(公告)号：US20130024580A1
公开(公告)日：2013-01-24
申请号：US13189334
申请日：2011-07-22
申请人： Chiajen Tsai , Norman Finn , Yibin Yang , Nagabhushan K. Channabasappa , Debashis Patnala Rao
发明人： Chiajen Tsai , Norman Finn , Yibin Yang , Nagabhushan K. Channabasappa , Debashis Patnala Rao
IPC分类号： G06F15/16
CPC分类号： H04L41/0816 , H04L12/4687 , H04L12/4695 , H04L41/12 , H04L45/66
摘要： In one embodiment, a method includes detecting a change in network topology and broadcasting a transient unconditional unpruning message to all nodes in the network. The message is configured to instruct each network element receiving the message to start a phase timer in response to the broadcast message; unprune its operational ports; and, upon expiration of the phase timer, prune its ports in accordance with the results of a pruning protocol.
摘要翻译：在一个实施例中，一种方法包括检测网络拓扑的变化并且向网络中的所有节点广播瞬时无条件的取消运行消息。消息被配置为响应于广播消息指示接收消息的每个网络元件开始相位定时器; 解除其运营端口; 并且在相位计时器到期后，根据修剪协议的结果修剪其端口。

3. 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。

4. 发明授权

US09736065B2 Level of hierarchy in MST for traffic localization and load balancing 有权
公开(公告)号：US09736065B2
公开(公告)日：2017-08-15
申请号：US13168571
申请日：2011-06-24
申请人： Chia Tsai , Norman W. Finn , Yibin Yang , Debashis Patnala Rao
发明人： Chia Tsai , Norman W. Finn , Yibin Yang , Debashis Patnala Rao
IPC分类号： H04L12/753 , H04L12/715 , H04L12/707 , H04L12/803
CPC分类号： H04L45/48 , H04L45/04 , H04L45/24 , H04L45/46 , H04L47/125
摘要： In one embodiment, a multiple spanning tree (MST) region is defined in a network, where the MST region includes a plurality of network nodes interconnected by links. A MST cluster is defined within the MST region, where the MST cluster includes a plurality of network nodes selected from the plurality of network nodes of the MST region. A network node of the MST cluster generates one or more MST bridge protocol data units (BPDUs) that present the MST cluster as a single logical entity to network nodes of the MST region that are not included in the MST cluster, yet enables per-multiple spanning tree instance (per-MSTI) load balancing of traffic across inter-cluster links that connect network nodes included in the MST cluster and network nodes of the MST region that are not included in the MST cluster.

5. 发明申请

US20130242757A1 INTERCONNECTING SEGMENTED LAYER TWO NETWORK FOR CLOUD SWITCHING 有权
标题翻译：互连分层两层网络进行云交换
公开(公告)号：US20130242757A1
公开(公告)日：2013-09-19
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 , H04L12/26 , H04L12/56
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。

6. 发明授权

US08868731B1 Technique for false positives prevention in high availability network 有权
标题翻译：高可用性网络假阳性预防技术
公开(公告)号：US08868731B1
公开(公告)日：2014-10-21
申请号：US13154275
申请日：2011-06-06
申请人： Chia Tsai , Minjie Lin , Yibin Yang , Debashis Patnala Rao
发明人： Chia Tsai , Minjie Lin , Yibin Yang , Debashis Patnala Rao
IPC分类号： G06F15/173 , H04L12/28 , H04L12/56 , G06F11/00
CPC分类号： H04L45/28 , H04L12/462 , H04L12/4625 , H04L41/0893
摘要： In one embodiment, a protocol state associated with a port of a network device is determined to have expired. A port group of which the port is a member is determined, the port group including ports that share one or more common characteristics. A policy is applied to the ports of the port group to determine whether one or more other ports in the port group also have a corresponding protocol state protocol that has expired. In response to one or more other ports in the port group also having a corresponding protocol state that has expired, expiration of the protocol state is determined to be a false positive and no further action is taken based on expiration of the protocol state. When expiration of the protocol state is not determined to be a false positive, further action is taken based on expiration of the protocol state.
摘要翻译：在一个实施例中，确定与网络设备的端口相关联的协议状态已经期满。确定端口是其成员的端口组，端口组包括共享一个或多个公共特性的端口。策略应用于端口组的端口，以确定端口组中的一个或多个其他端口是否也具有已过期的对应协议状态协议。响应于端口组中的一个或多个其他端口也具有已经过期的对应协议状态，协议状态的到期被确定为假阳性，并且基于协议状态的到期而不采取进一步的动作。当协议状态的到期未被确定为假阳性时，基于协议状态的到期采取进一步的动作。

7. 发明申请

US20120327766A1 LEVEL OF HIERARCHY IN MST FOR TRAFFIC LOCALIZATION AND LOAD BALANCING 有权
标题翻译： MST用于交通局部化和负载均衡的层次度
公开(公告)号：US20120327766A1
公开(公告)日：2012-12-27
申请号：US13168571
申请日：2011-06-24
申请人： Chia Tsai , Norman W. Finn , Yibin Yang , Debashis Patnala Rao
发明人： Chia Tsai , Norman W. Finn , Yibin Yang , Debashis Patnala Rao
IPC分类号： H04L12/26
CPC分类号： H04L45/48 , H04L45/04 , H04L45/24 , H04L45/46 , H04L47/125
摘要： In one embodiment, a multiple spanning tree (MST) region is defined in a network, where the MST region includes a plurality of network nodes interconnected by links. A MST cluster is defined within the MST region, where the MST cluster includes a plurality of network nodes selected from the plurality of network nodes of the MST region. A network node of the MST cluster generates one or more MST bridge protocol data units (BPDUs) that present the MST cluster as a single logical entity to network nodes of the MST region that are not included in the MST cluster, yet enables per-multiple spanning tree instance (per-MSTI) load balancing of traffic across inter-cluster links that connect network nodes included in the MST cluster and network nodes of the MST region that are not included in the MST cluster.
摘要翻译：在一个实施例中，在网络中定义多生成树（MST）区域，其中MST区域包括通过链路互连的多个网络节点。在MST区域内定义MST集群，其中MST集群包括从MST区域的多个网络节点中选择的多个网络节点。 MST集群的网络节点生成一个或多个MST网桥协议数据单元（BPDU），该MST网桥协议数据单元将MST集群作为单个逻辑实体提供给不包括在MST集群中的MST域的网络节点，生成树实例（每个MSTI）负责平衡连接MST群集中包含的网络节点和MST群集中未包含的MST域的网络节点的跨群集链路之间的流量。

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