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公开(公告)号：US20110216769A1
公开(公告)日：2011-09-08
申请号：US12719321
申请日：2010-03-08
IPC分类号： H04L12/56
CPC分类号： H04L12/56
摘要： A switch/router dynamically selects a path from multiple available paths between a source destination pair for a frame. A hash function generates a hash value from frame parameters such as source ID, destination ID, exchange ID, etc. The hash value is given as an input to a plurality of range comparators where each range comparator has a range of values associated with it. If the hash value falls within a range associated with a range comparator, that range comparator generates an in-range signal. A path selector module detects which range comparator has generated the in-range signal, and determines a path associated with that range comparator from previously stored information. The frame is transmitted via the selected path. The ranges associated with each range comparator can be non-overlapping and unequal in size. The number of range comparators can be equal to a number of selected multiple paths.
摘要翻译： 交换机/路由器动态地从帧的源目的地对之间的多个可用路径选择路径。 哈希函数从诸如源ID，目的地ID，交换ID等帧参数生成哈希值。散列值作为输入，被给予多个范围比较器，其中每个范围比较器具有与其相关联的值的范围。 如果散列值落在与范围比较器相关联的范围内，则该范围比较器产生范围内信号。 路径选择器模块检测哪个范围比较器已经产生了范围内信号，并且从先前存储的信息确定与该范围比较器相关联的路径。 帧通过所选路径传输。 与每个范围比较器相关联的范围可以是非重叠的并且在大小上是不相等的。 范围比较器的数量可以等于所选多个路径的数量。
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公开(公告)号：US08831013B2
公开(公告)日：2014-09-09
申请号：US12575608
申请日：2009-10-08
申请人： Sathish Kumar Gnanasekaran , Chao Zhang , Daniel Ji Yong Park Chung , Subramanian Lakshmanan , Badrinath Kollu
发明人： Sathish Kumar Gnanasekaran , Chao Zhang , Daniel Ji Yong Park Chung , Subramanian Lakshmanan , Badrinath Kollu
CPC分类号： H04L45/586 , H04L12/4625 , H04L45/583 , H04L49/357 , H04L49/70
摘要： A Layer 2 network switch is partitionable into a plurality of switch fabrics. The single-chassis switch is partitionable into a plurality of logical switches, each associated with one of the virtual fabrics. The logical switches behave as complete and self-contained switches. A logical switch fabric can span multiple single-chassis switch chassis. Logical switches are connected by inter-switch links that can be either dedicated single-chassis links or logical links. An extended inter-switch link can be used to transport traffic for one or more logical inter-switch links. Physical ports of the chassis are assigned to logical switches and are managed by the logical switch. Legacy switches that are not partitionable into logical switches can serve as transit switches between two logical switches.
摘要翻译： 二层网络交换机可分割成多个交换结构。 单机箱交换机可分割成多个逻辑交换机，每个逻辑交换机与虚拟结构之一相关联。 逻辑交换机表现为完整和自包含的交换机。 逻辑交换矩阵可以跨多个单机箱交换机机箱。 逻辑交换机通过可以是专用单机箱链路或逻辑链路的交换机间链路连接。 可以使用扩展的交换机间链路来传输一个或多个逻辑交换机间链路的业务。 机箱的物理端口分配给逻辑交换机，由逻辑交换机管理。 不可分割到逻辑交换机的旧式交换机可以用作两个逻辑交换机之间的转接交换机。
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公开(公告)号：US20110085569A1
公开(公告)日：2011-04-14
申请号：US12575611
申请日：2009-10-08
申请人： Sathish Kumar Gnanasekaran , Subramanian Lakshmanan , Tarun Bhatia , Badrinath Kollu , Xupei Liang , Leifang Hu , Bei Wang
发明人： Sathish Kumar Gnanasekaran , Subramanian Lakshmanan , Tarun Bhatia , Badrinath Kollu , Xupei Liang , Leifang Hu , Bei Wang
IPC分类号： H04L12/56
CPC分类号： H04L49/25 , H04L49/109
摘要： A Layer 2 network switch is partitionable into a plurality of switch fabrics. The single-chassis switch is partitionable into a plurality of logical switches, each associated with one of the virtual fabrics. The logical switches behave as complete and self-contained switches. A logical switch fabric can span multiple single-chassis switch chassis. Logical switches are connected by inter-switch links that can be either dedicated single-chassis links or logical links. An extended inter-switch link can be used to transport traffic for one or more logical inter-switch links. Physical ports of the chassis are assigned to logical switches and are managed by the logical switch. Legacy switches that are not partitionable into logical switches can serve as transit switches between two logical switches.
摘要翻译： 二层网络交换机可分割成多个交换结构。 单机箱交换机可分割成多个逻辑交换机，每个逻辑交换机与虚拟结构之一相关联。 逻辑交换机表现为完整和自包含的交换机。 逻辑交换矩阵可以跨多个单机箱交换机机箱。 逻辑交换机通过可以是专用单机箱链路或逻辑链路的交换机间链路连接。 可以使用扩展的交换机间链路来传输一个或多个逻辑交换机间链路的业务。 机箱的物理端口分配给逻辑交换机，由逻辑交换机管理。 不可分割到逻辑交换机的旧式交换机可以用作两个逻辑交换机之间的转接交换机。
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公开(公告)号：US20110085568A1
公开(公告)日：2011-04-14
申请号：US12575607
申请日：2009-10-08
IPC分类号： H04L12/56
CPC分类号： H04L49/357 , H04L45/586 , H04L49/00 , H04L49/70
摘要： A Layer 2 network switch is partitionable into a plurality of switch fabrics. The single-chassis switch is partitionable into a plurality of logical switches, each associated with one of the virtual fabrics. The logical switches behave as complete and self-contained switches. A logical switch fabric can span multiple single-chassis switch chassis. Logical switches are connected by inter-switch links that can be either dedicated single-chassis links or logical links. An extended inter-switch link can be used to transport traffic for one or more logical inter-switch links. Physical ports of the chassis are assigned to logical switches and are managed by the logical switch. Legacy switches that are not partitionable into logical switches can serve as transit switches between two logical switches.
摘要翻译： 二层网络交换机可分割成多个交换结构。 单机箱交换机可分割成多个逻辑交换机，每个逻辑交换机与虚拟结构之一相关联。 逻辑交换机表现为完整和自包含的交换机。 逻辑交换矩阵可以跨多个单机箱交换机机箱。 逻辑交换机通过可以是专用单机箱链路或逻辑链路的交换机间链路连接。 可以使用扩展的交换机间链路来传输一个或多个逻辑交换机间链路的业务。 机箱的物理端口分配给逻辑交换机，由逻辑交换机管理。 不可分割到逻辑交换机的旧式交换机可以用作两个逻辑交换机之间的转接交换机。
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公开(公告)号：US08982898B2
公开(公告)日：2015-03-17
申请号：US12575611
申请日：2009-10-08
申请人： Sathish Kumar Gnanasekaran , Subramanian Lakshmanan , Tarun Bhatia , Badrinath Kollu , Xupei Liang , Leifang Hu , Bei Wang
发明人： Sathish Kumar Gnanasekaran , Subramanian Lakshmanan , Tarun Bhatia , Badrinath Kollu , Xupei Liang , Leifang Hu , Bei Wang
IPC分类号： H04L12/28 , H04L12/947 , H04L12/933
CPC分类号： H04L49/25 , H04L49/109
摘要： A Layer 2 network switch is partitionable into a plurality of switch fabrics. The single-chassis switch is partitionable into a plurality of logical switches, each associated with one of the virtual fabrics. The logical switches behave as complete and self-contained switches. A logical switch fabric can span multiple single-chassis switch chassis. Logical switches are connected by inter-switch links that can be either dedicated single-chassis links or logical links. An extended inter-switch link can be used to transport traffic for one or more logical inter-switch links. Physical ports of the chassis are assigned to logical switches and are managed by the logical switch. Legacy switches that are not partitionable into logical switches can serve as transit switches between two logical switches.
摘要翻译： 二层网络交换机可分割成多个交换结构。 单机箱交换机可分割成多个逻辑交换机，每个逻辑交换机与虚拟结构之一相关联。 逻辑交换机表现为完整和自包含的交换机。 逻辑交换矩阵可以跨多个单机箱交换机机箱。 逻辑交换机通过可以是专用单机箱链路或逻辑链路的交换机间链路连接。 可以使用扩展的交换机间链路来传输一个或多个逻辑交换机间链路的业务。 机箱的物理端口分配给逻辑交换机，由逻辑交换机管理。 不可分割到逻辑交换机的旧式交换机可以用作两个逻辑交换机之间的转接交换机。
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公开(公告)号：US20110085558A1
公开(公告)日：2011-04-14
申请号：US12575608
申请日：2009-10-08
申请人： Sathish Kumar Gnanasekaran , Chao Zhang , Daniel Ji Yong Park Chung , Subramanian Lakshmanan , Badrinath Kollu
发明人： Sathish Kumar Gnanasekaran , Chao Zhang , Daniel Ji Yong Park Chung , Subramanian Lakshmanan , Badrinath Kollu
IPC分类号： H04L12/56
CPC分类号： H04L45/586 , H04L12/4625 , H04L45/583 , H04L49/357 , H04L49/70
摘要： A Layer 2 network switch is partitionable into a plurality of switch fabrics. The single-chassis switch is partitionable into a plurality of logical switches, each associated with one of the virtual fabrics. The logical switches behave as complete and self-contained switches. A logical switch fabric can span multiple single-chassis switch chassis. Logical switches are connected by inter-switch links that can be either dedicated single-chassis links or logical links. An extended inter-switch link can be used to transport traffic for one or more logical inter-switch links. Physical ports of the chassis are assigned to logical switches and are managed by the logical switch. Legacy switches that are not partitionable into logical switches can serve as transit switches between two logical switches.
摘要翻译： 二层网络交换机可分割成多个交换结构。 单机箱交换机可分割成多个逻辑交换机，每个逻辑交换机与虚拟结构之一相关联。 逻辑交换机表现为完整和自包含的交换机。 逻辑交换矩阵可以跨多个单机箱交换机机箱。 逻辑交换机通过可以是专用单机箱链路或逻辑链路的交换机间链路连接。 可以使用扩展的交换机间链路来传输一个或多个逻辑交换机间链路的业务。 机箱的物理端口分配给逻辑交换机，由逻辑交换机管理。 不可分割到逻辑交换机的旧式交换机可以用作两个逻辑交换机之间的转接交换机。
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公开(公告)号：US08989201B2
公开(公告)日：2015-03-24
申请号：US12575607
申请日：2009-10-08
IPC分类号： H04L12/28 , H04L12/931 , H04L12/713
CPC分类号： H04L49/357 , H04L45/586 , H04L49/00 , H04L49/70
摘要： A Layer 2 network switch is partitionable into a plurality of switch fabrics. The single-chassis switch is partitionable into a plurality of logical switches, each associated with one of the virtual fabrics. The logical switches behave as complete and self-contained switches. A logical switch fabric can span multiple single-chassis switch chassis. Logical switches are connected by inter-switch links that can be either dedicated single-chassis links or logical links. An extended inter-switch link can be used to transport traffic for one or more logical inter-switch links. Physical ports of the chassis are assigned to logical switches and are managed by the logical switch. Legacy switches that are not partitionable into logical switches can serve as transit switches between two logical switches.
摘要翻译： 二层网络交换机可分割成多个交换结构。 单机箱交换机可分割成多个逻辑交换机，每个逻辑交换机与虚拟结构之一相关联。 逻辑交换机表现为完整和自包含的交换机。 逻辑交换矩阵可以跨多个单机箱交换机机箱。 逻辑交换机通过可以是专用单机箱链路或逻辑链路的交换机间链路连接。 可以使用扩展的交换机间链路来传输一个或多个逻辑交换机间链路的业务。 机箱的物理端口分配给逻辑交换机，由逻辑交换机管理。 不可分割到逻辑交换机的旧式交换机可以用作两个逻辑交换机之间的转接交换机。
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公开(公告)号：US08339994B2
公开(公告)日：2012-12-25
申请号：US12549271
申请日：2009-08-27
IPC分类号： H04L12/28 , G06F15/173 , G06F15/177
CPC分类号： H04L45/583
摘要： A Layer 2 network switch fabric is partitionable into a plurality of virtual fabrics. A network switch chassis is partitionable into a plurality of logical switches, each of which may be associated with one of the virtual fabrics, including a base switch. Logical switches in multiple network switch chassis are connected by logical connections, such as logical inter-switch links that use physical connections, such as extended inter-switch links between base switches, for data transport. A topology of logical connections is established that balances competing metrics, such as robustness and scalability, while maintaining alignment with the topology of the physical connections. A topology factor allows establishing different topologies with different balances between the competing metrics.
摘要翻译： 二层网络交换结构可分割成多个虚拟结构。 网络交换机机箱可分割成多个逻辑交换机，每个逻辑交换机可以与包括基本交换机的虚拟结构之一相关联。 多个网络交换机机箱中的逻辑交换机通过逻辑连接连接，例如使用物理连接的逻辑交换机间链路，例如基本交换机之间的扩展交换机间链路，用于数据传输。 建立逻辑连接的拓扑结构，以平衡竞争性度量，例如鲁棒性和可扩展性，同时保持与物理连接的拓扑的对齐。 拓扑因子允许在竞争指标之间建立与不同平衡的不同拓扑。
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