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21. 发明授权

US07856490B2 System and method for multiple spanning tree protocol domains in a virtual local area network 有权
标题翻译：虚拟局域网中多个生成树协议域的系统和方法
公开(公告)号：US07856490B2
公开(公告)日：2010-12-21
申请号：US12580230
申请日：2009-10-15
申请人： Rajiv Ramanathan , Jordi Moncada-Elias
发明人： Rajiv Ramanathan , Jordi Moncada-Elias
IPC分类号： G06F15/177
CPC分类号： H04L45/18 , H04L12/44 , H04L12/4625 , H04L12/4641 , H04L12/467 , H04L45/48
摘要： A system and method that modifies the behavior of the IEEE 802.1D STP standard to thereby decouple the one data domain from the one control domain involves managing multiple spanning tree protocol (STP) instances in a virtual local area network (VLAN). The method includes the step of assigning a unique set of ports within the VLAN to each of the multiple STP instances. Then, each of the multiple STP instances are managed to keep each of the multiple STP instances separate. Finally, when a topology change is detected in one of the multiple STP instances, entries that have been learned on the unique set of ports assigned to the STP protocol instance where the topology change is detected are fast-aged or transitioned from one state to another.
摘要翻译：修改IEEE 802.1D STP标准的行为从而使一个数据域与一个控制域分离的系统和方法涉及管理虚拟局域网（VLAN）中的多个生成树协议（STP）实例。该方法包括将VLAN内的一组唯一的端口分配给多个STP实例的步骤。然后，管理多个STP实例中的每一个，以保持每个多个STP实例分离。最后，当在多个STP实例之一中检测到拓扑变化时，已经在分配给STP协议实例的唯一一组端口上学习到的拓扑变化被检测到的条目被快速老化或从一个状态转换到另一个状态。

22. 发明申请

US20100061254A1 Technical Enhancements to STP (IEEE 802.1D) Implementation 有权
标题翻译：对STP（IEEE 802.1D）实施的技术增强
公开(公告)号：US20100061254A1
公开(公告)日：2010-03-11
申请号：US12509313
申请日：2009-07-24
申请人： Benny J. Thottakkara , Rajiv Ramanathan
发明人： Benny J. Thottakkara , Rajiv Ramanathan
IPC分类号： H04L12/26 , H04L12/28
CPC分类号： H04L12/462 , H04L45/48
摘要： An embodiment includes a method of minimizing the delay in convergence time for a complex STP topology following a topology change in the network system in the spanning tree protocol (STP) standard, including: receiving, by a root port of a first bridge, a data message that includes identification of a current root bridge and a priority value of the current root bridge; receiving, by a second port of the first bridge, a second data message from a second bridge; and if a message age timer of the first bridge has less than a limiting message age time value remaining before expiry, then blocking a reply, by the second port of the first bridge, to the second data message from the second bridge.
摘要翻译：实施例包括在生成树协议（STP）标准中的网络系统中的拓扑变化之后，最小化复杂STP拓扑的收敛时间的延迟的方法，包括：由第一桥的根端口接收数据消息，其包括当前根桥的标识和当前根桥的优先级值; 由第一桥的第二端口接收来自第二桥的第二数据消息; 并且如果第一桥的消息年龄定时器具有小于到期之前剩余的限制消息老化时间值，则由第一桥的第二端口阻止来自第二桥的第二数据消息的回复。

23. 发明授权

US07586856B1 Technical enhancements to STP (IEEE 802.1D) implementation 有权
标题翻译：对STP（IEEE 802.1D）实现的技术改进
公开(公告)号：US07586856B1
公开(公告)日：2009-09-08
申请号：US10394344
申请日：2003-03-20
申请人： Benny J. Thottakkara , Rajiv Ramanathan
发明人： Benny J. Thottakkara , Rajiv Ramanathan
IPC分类号： H04L12/28
CPC分类号： H04L12/462 , H04L45/48
摘要： An embodiment includes a method of minimizing the delay in convergence time for a complex STP topology following a topology change in the network system in the spanning tree protocol (STP) standard, including: receiving, by a root port of a first bridge, a data message that includes identification of a current root bridge and a priority value of the current root bridge; receiving, by a second port of the first bridge, a second data message from a second bridge; and if a message age timer of the first bridge has less than a limiting message age time value remaining before expiry, then blocking a reply, by the second port of the first bridge, to the second data message from the second bridge.
摘要翻译：实施例包括在生成树协议（STP）标准中的网络系统中的拓扑变化之后，最小化复杂STP拓扑的收敛时间的延迟的方法，包括：由第一桥的根端口接收数据消息，其包括当前根桥的标识和当前根桥的优先级值; 由第一桥的第二端口接收来自第二桥的第二数据消息; 并且如果第一桥的消息年龄定时器具有小于到期之前剩余的限制消息老化时间值，则由第一桥的第二端口阻止来自第二桥的第二数据消息的回复。

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