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公开(公告)号：US20060153186A1
公开(公告)日：2006-07-13
申请号：US11027252
申请日：2004-12-29
申请人： Rajeev Bector , Sachin Jain , Ramana Mellacheruvu , Umesh Mahajan
发明人： Rajeev Bector , Sachin Jain , Ramana Mellacheruvu , Umesh Mahajan
IPC分类号： H04L12/56
CPC分类号： H04L49/254 , H04L1/16 , H04L49/3045 , H04L49/357
摘要： Methods and apparatus are provided for improving fibre channel packet delivery. Techniques are provided for the in-order delivery of packets by blocking incoming packets associated with a port channel change at a fibre channel switch and sending flush messages onto links associated with a port channel change. Upon receiving acknowledgments for the flush messages, incoming packets are unblocked.
摘要翻译： 提供了用于改善光纤通道分组传送的方法和装置。 通过阻止与光纤信道交换机上的端口信道改变相关联的输入分组，并且将冲突消息发送到与端口信道改变相关联的链路上，提供了用于按顺序传送分组的技术。 在接收到刷新消息的确认后，传入的数据包被解除阻塞。
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2.发明授权Preventing transient loops in broadcast/multicast trees during distribution of link state information 有权在分发链路状态信息期间防止广播/多播树中的瞬态环路公开(公告)号：US07817580B2
公开(公告)日：2010-10-19
申请号：US11378990
申请日：2006-03-17
申请人： Sachin Jain , Ramana Mellacheruvu , Sanjay Sane
发明人： Sachin Jain , Ramana Mellacheruvu , Sanjay Sane
IPC分类号： H04L12/28
摘要： According to the present invention, methods and apparatus are provided to improve the link state routing protocol (LSRP) to prevent transient loops during topology changes. Broadcast and shared multicast traffic may be dropped on particular ports upon detecting link state change until neighboring nodes have computed routes using updated link state information. An acknowledgment is sent upon receiving a link state record. Sync and sync-ack packets are used to determine when link state information is synchronized with that of peer nodes.
摘要翻译： 根据本发明，提供了用于改善链路状态路由协议（LSRP）以防止拓扑变化期间的瞬时环路的方法和装置。 在检测到链路状态改变之后，广播和共享多播流量可能被丢弃在特定端口上，直到相邻节点使用更新的链路状态信息来计算路由。 在收到链接状态记录时发送确认。 同步和同步数据包用于确定链路状态信息与对等节点的链路状态信息是否同步。
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3.发明申请Preventing transient loops in broadcast/multicast trees during distribution of link state information 有权在分发链路状态信息期间防止广播/多播树中的瞬态环路公开(公告)号：US20070127396A1
公开(公告)日：2007-06-07
申请号：US11378990
申请日：2006-03-17
申请人： Sachin Jain , Ramana Mellacheruvu , Sanjay Sane
发明人： Sachin Jain , Ramana Mellacheruvu , Sanjay Sane
摘要： According to the present invention, methods and apparatus are provided to improve the link state routing protocol (LSRP) to prevent transient loops during topology changes. Broadcast and shared multicast traffic may be dropped on particular ports upon detecting link state change until neighboring nodes have computed routes using updated link state information. An acknowledgment is sent upon receiving a link state record. Sync and sync-ack packets are used to determine when link state information is synchronized with that of peer nodes.
摘要翻译： 根据本发明，提供了用于改善链路状态路由协议（LSRP）以防止拓扑变化期间的瞬时环路的方法和装置。 在检测到链路状态改变之后，广播和共享多播流量可能被丢弃在特定端口上，直到相邻节点使用更新的链路状态信息来计算路由。 在收到链接状态记录时发送确认。 同步和同步数据包用于确定链路状态信息与对等节点的链路状态信息是否同步。
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公开(公告)号：US07649844B2
公开(公告)日：2010-01-19
申请号：US11027252
申请日：2004-12-29
申请人： Rajeev Bector , Sachin Jain , Ramana Mellacheruvu , Umesh Mahajan
发明人： Rajeev Bector , Sachin Jain , Ramana Mellacheruvu , Umesh Mahajan
IPC分类号： H04L1/00
CPC分类号： H04L49/254 , H04L1/16 , H04L49/3045 , H04L49/357
摘要： Methods and apparatus are provided for improving fiber channel packet delivery. Techniques are provided for the in-order delivery of packets by blocking incoming packets associated with a port channel change at a fiber channel switch and sending flush messages onto links associated with a port channel change. Upon receiving acknowledgments for the flush messages, incoming packets are unblocked.
摘要翻译： 提供了用于改善光纤通道分组传送的方法和装置。 通过阻止与光纤信道交换机上的端口信道改变相关联的输入分组，并且将冲突消息发送到与端口信道改变相关联的链路上，提供了用于按顺序传送分组的技术。 在接收到刷新消息的确认后，传入的数据包被解除阻塞。
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5.发明申请Preventing transient loops in broadcast/multicast trees during distribution of link state information 审中-公开在分发链路状态信息期间防止广播/多播树中的瞬态环路公开(公告)号：US20070127395A1
公开(公告)日：2007-06-07
申请号：US11297882
申请日：2005-12-07
申请人： Sachin Jain , Ramana Mellacheruvu
发明人： Sachin Jain , Ramana Mellacheruvu
摘要： According to the present invention, methods and apparatus are provided to improve the link state routing protocol (LSRP) to prevent transient loops during topology changes. Broadcast and shared multicast traffic is dropped upon detecting link state change until neighboring nodes have computed routes using updated link state information. An acknowledgment for a link state record is sent only after route computation is complete using updated link state information.
摘要翻译： 根据本发明，提供了用于改善链路状态路由协议（LSRP）以防止拓扑变化期间的瞬时环路的方法和装置。 检测到链路状态改变后，广播和共享组播流量被丢弃，直到相邻节点使用更新的链路状态信息计算路由。 链路状态记录的确认仅在使用更新的链路状态信息完成路由计算之后发送。
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公开(公告)号：US08225134B2
公开(公告)日：2012-07-17
申请号：US11697612
申请日：2007-04-06
IPC分类号： G06F11/00
CPC分类号： H04L41/0654 , G06F11/1482 , G06F2201/815 , H04L69/32 , H04L69/40
摘要： In one embodiment, an indication of a fault condition is received relating to a first service running on a physical device in a computer network. The first service is associated with a first virtual device context defined on the physical device. Then, the first service is disabled without affecting operation of a second service on the physical device. The second service is associated with a second virtual device context defined on the physical device. In another embodiment, a first virtual device context is created on a physical device in a computer network. Then, a second virtual device context is created on the physical device. The first virtual device context may then be managed independently of the second virtual device context such that resources assigned to a virtual device context are managed without affecting management of another virtual device context.
摘要翻译： 在一个实施例中，接收与在计算机网络中的物理设备上运行的第一服务有关的故障状况的指示。 第一服务与在物理设备上定义的第一虚拟设备上下文相关联。 然后，第一服务被禁用，而不影响物理设备上的第二服务的操作。 第二服务与在物理设备上定义的第二虚拟设备上下文相关联。 在另一个实施例中，在计算机网络中的物理设备上创建第一虚拟设备上下文。 然后，在物理设备上创建第二虚拟设备上下文。 然后可以独立于第二虚拟设备上下文管理第一虚拟设备上下文，使得分配给虚拟设备上下文的资源被管理，而不影响另一虚拟设备上下文的管理。
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公开(公告)号：US20080089247A1
公开(公告)日：2008-04-17
申请号：US11582194
申请日：2006-10-16
申请人： Sanjay Sane , Lawrence Kreeger , Thomas Edsall , Elango Ganesan , Soei-Shin Hang , Ramana Mellacheruvu
发明人： Sanjay Sane , Lawrence Kreeger , Thomas Edsall , Elango Ganesan , Soei-Shin Hang , Ramana Mellacheruvu
IPC分类号： H04L12/28
CPC分类号： H04L12/462 , H04L45/00 , H04L45/245 , H04L45/48 , H04L45/586 , H04L47/125 , H04L49/351 , H04L49/70
摘要： A solution is provided wherein the interfaces between multiple chassis (e.g., edge switches) in a network of layer 2 devices and a spanning tree device are treated as a single emulated switch. This emulated switch effectively enables two different views to the two different sides. Thus, frames from the network of layer 2 switches destined to any port of the emulated switch may take any of the links (through any of the physical switches), thereby enabling effective load-balancing for frames traveling from the layer 2 network side into the spanning tree device. Meanwhile the spanning tree device does not recognize an illegal loop in its connection to two different edge switches as it views the two links as a single logical EtherChannel.
摘要翻译： 提供了一种解决方案，其中层2设备的网络中的多个机箱（例如，边缘交换机）与生成树设备之间的接口被视为单个仿真开关。 该模拟开关有效地实现了两个不同的视图。 因此，去往模拟交换机的任何端口的第二层交换机的网络的帧可以采用任何链路（通过任何物理交换机），从而使得从第2层网络侧行进到帧的帧能够进行有效的负载平衡 生成树设备。 同时，生成树设备在将两个链路视为单个逻辑以太通道时，不识别其连接到两个不同边缘交换机的非法回路。
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公开(公告)号：US06735201B1
公开(公告)日：2004-05-11
申请号：US10238422
申请日：2002-09-10
IPC分类号： H04L1228
CPC分类号： H04L12/4641 , H04L12/467
摘要： Efficient switched network multicasting techniques are provided. Incoming multicast packets are processed by a central forwarding engine (CFE) in a network switch to generate forwarding indices used to make forwarding decisions for the packets based upon whether the packets are special multicast control packets or data packets. Forwarding of the special multicast control packets is determined by the switch's network management processor (NMP), while data packets are forwarded based upon conventional bridge forwarding techniques.
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公开(公告)号：US20120278458A1
公开(公告)日：2012-11-01
申请号：US13543671
申请日：2012-07-06
IPC分类号： G06F15/177
CPC分类号： H04L41/0654 , G06F11/1482 , G06F2201/815 , H04L69/32 , H04L69/40
摘要： In one embodiment, an indication of a fault condition is received relating to a first service running on a physical device in a computer network. The first service is associated with a first virtual device context defined on the physical device. Then, the first service is disabled without affecting operation of a second service on the physical device. The second service is associated with a second virtual device context defined on the physical device. In another embodiment, a first virtual device context is created on a physical device in a computer network. Then, a second virtual device context is created on the physical device. The first virtual device context may then be managed independently of the second virtual device context such that resources assigned to a virtual device context are managed without affecting management of another virtual device context.
摘要翻译： 在一个实施例中，接收与在计算机网络中的物理设备上运行的第一服务有关的故障状况的指示。 第一服务与在物理设备上定义的第一虚拟设备上下文相关联。 然后，第一服务被禁用，而不影响物理设备上的第二服务的操作。 第二服务与在物理设备上定义的第二虚拟设备上下文相关联。 在另一个实施例中，在计算机网络中的物理设备上创建第一虚拟设备上下文。 然后，在物理设备上创建第二虚拟设备上下文。 然后可以独立于第二虚拟设备上下文管理第一虚拟设备上下文，使得分配给虚拟设备上下文的资源被管理，而不影响另一虚拟设备上下文的管理。
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公开(公告)号：US07599284B1
公开(公告)日：2009-10-06
申请号：US11130286
申请日：2005-05-16
IPC分类号： G01R31/08 , H04L12/28 , G06F15/177
CPC分类号： H04L45/00 , H04L41/00 , H04L45/48 , H04L45/586
摘要： A method and apparatus for continuing the operation of a spanning tree protocol at a network device despite crashes or failures at that device is disclosed. The network device includes a plurality of line cards having ports for receiving and forwarding messages and a plurality of supervisor cards for processing at least some of those messages. Upon start-up, one of the supervisor cards is designated the active supervisor, while all other supervisor cards are designated standby supervisors. The active supervisor runs the spanning tree protocol (STP). The active supervisor informs the standby supervisors of the states of ports set by the STP. When a crash or failure occurs at the active supervisor, one of the standby supervisors is immediately designated to be the new active supervisor, and the new active supervisor uses the states of ports set by the original STP.
摘要翻译： 一种用于在网络设备上继续执行生成树协议的方法和装置，尽管公开了该设备上的故障或故障。 网络设备包括具有用于接收和转发消息的端口的多个线路卡和用于处理这些消息中的至少一些的多个管理卡。 启动时，其中一个主管卡被指定为主管，而所有其他主管卡都被指定为备用主管。 活动主管运行生成树协议（STP）。 主动主管向备用主管通知STP设置的端口状态。 当主动管理员发生故障或故障时，其中一个备用主管立即被指定为新的主动管理员，新的主管主管使用原始STP设置的端口状态。
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