公开(公告)号：US07944860B2

公开(公告)日：2011-05-17

申请号：US12455612

申请日：2009-06-04

申请人： Santosh Rajagopalan ,  Tameen Khan ,  Ronak Desai

发明人： Santosh Rajagopalan ,  Tameen Khan ,  Ronak Desai

IPC分类号： H04L12/28 ,  H04L12/56

CPC分类号： H04L12/462 ,  H04L12/4625 ,  H04L12/4641 ,  H04L41/0856 ,  H04L41/0873 ,  H04L41/0893 ,  H04L41/12 ,  H04L49/35

摘要： In one embodiment, a method includes receiving at a processor at a node, notification of an error in a VLAN to topology mapping at the node, receiving a multi-destination packet from the VLAN in the VLAN to topology mapping, the multi-destination packet including a tree identifier associated with one of the topologies, and transmitting the multi-destination packet to all forwarding ports at the node in an unpruned tree corresponding to the tree identifier contained in the multi-destination packet. An apparatus is also disclosed.

摘要翻译： 在一个实施例中，一种方法包括：在节点处的处理器处接收VLAN中的错误通知，在节点处进行拓扑映射，从VLAN中的VLAN接收多目的地分组到拓扑映射，多目的地分组 包括与所述拓扑之一相关联的树标识符，以及将所述多目的地分组发送到与所述多目的地分组中包含的所述树标识符相对应的未运行树中的节点处的所有转发端口。 还公开了一种装置。

公开(公告)号：US20100309820A1

公开(公告)日：2010-12-09

申请号：US12455612

申请日：2009-06-04

申请人： Santosh Rajagopalan ,  Tameen Khan ,  Ronak Desai

发明人： Santosh Rajagopalan ,  Tameen Khan ,  Ronak Desai

IPC分类号： H04L12/28

CPC分类号： H04L12/462 ,  H04L12/4625 ,  H04L12/4641 ,  H04L41/0856 ,  H04L41/0873 ,  H04L41/0893 ,  H04L41/12 ,  H04L49/35

摘要： In one embodiment, a method includes receiving at a processor at a node, notification of an error in a VLAN to topology mapping at the node, receiving a multi-destination packet from the VLAN in the VLAN to topology mapping, the multi-destination packet including a tree identifier associated with one of the topologies, and transmitting the multi-destination packet to all forwarding ports at the node in an unpruned tree corresponding to the tree identifier contained in the multi-destination packet. An apparatus is also disclosed.

摘要翻译： 在一个实施例中，一种方法包括：在节点处的处理器处接收VLAN中的错误通知，在节点处进行拓扑映射，从VLAN中的VLAN接收多目的地分组到拓扑映射，多目的地分组 包括与所述拓扑之一相关联的树标识符，以及将所述多目的地分组发送到与所述多目的地分组中包含的所述树标识符相对应的未运行树中的节点处的所有转发端口。 还公开了一种装置。

公开(公告)号：US20110134802A1

公开(公告)日：2011-06-09

申请号：US12633879

申请日：2009-12-09

申请人： Santosh Rajagopalan ,  Tameen Khan

发明人： Santosh Rajagopalan ,  Tameen Khan

IPC分类号： H04L12/28

CPC分类号： H04L45/48 ,  H04L45/52

摘要： According to one embodiment, a routing tree may be determined by facilitating communication of a first network and a second network. The first network comprises first switches and uses a first routing protocol, and the second network comprises second switches and uses a second routing protocol. The intersection of the first and second switches comprises gateway switches. A gateway switch enables creation of a second routing tree of the second routing protocol. The second routing tree has virtual links and a virtual root switch representing a first root switch of the first network. The second switches generate minimum link cost tunnels using information from the second routing protocol. A first routing tree of the first routing protocol is extended with the tunnels to merge the first routing tree and the second routing tree.

摘要翻译： 根据一个实施例，可以通过促进第一网络和第二网络的通信来确定路由树。 第一网络包括第一交换机并使用第一路由协议，并且第二网络包括第二交换机并使用第二路由协议。 第一和第二交换机的交点包括网关交换机。 网关交换机能够创建第二路由协议的第二路由树。 第二路由树具有虚拟链路，虚拟根交换机表示第一网络的第一根交换机。 第二交换机使用来自第二路由协议的信息来生成最小链路成本隧道。 用隧道扩展第一路由协议的第一路由树，以合并第一路由树和第二路由树。

公开(公告)号：US20110228670A1

公开(公告)日：2011-09-22

申请号：US12661679

申请日：2010-03-22

申请人： Christian Sasso ,  Hariharan Balasubramanian ,  Vithal Shirodkar ,  Ronak Desai ,  Ankur Goyal ,  Santosh Rajagopalan

发明人： Christian Sasso ,  Hariharan Balasubramanian ,  Vithal Shirodkar ,  Ronak Desai ,  Ankur Goyal ,  Santosh Rajagopalan

IPC分类号： G06F11/00

CPC分类号： H04L45/12 ,  H04L41/0668 ,  H04L45/02 ,  H04L45/22 ,  H04L45/28 ,  H04L45/586 ,  H04L49/357 ,  H04L49/70

摘要： In one embodiment, a method includes establishing a link between two N_Port Identifier Virtualization (NPIV) switches, the link having a high cost assigned thereto. The NPIV switches are in communication with a plurality of hosts through an N_Port Virtualization (NPV) device. The method further includes receiving at a first of the NPIV switches, an indication of a failure at a second of the NPIV switches, receiving data at the first NPIV switch, the data destined for one of the hosts associated with a domain of the second NPIV switch, and forwarding the data to the NPV device for delivery to the host, wherein a Fibre Channel Identifier (FCID) of the host is the same before and after the failure at the second NPIV switch. An apparatus is also disclosed.

摘要翻译： 在一个实施例中，一种方法包括在两个N_Port标识符虚拟化（NPIV）交换机之间建立链路，该链路具有高成本分配给它。 NPIV交换机通过N_Port虚拟化（NPV）设备与多个主机通信。 该方法还包括在第一NPIV交换机处接收在第一NPIV交换机的第二个NPIV交换机处的故障的指示，在第一NPIV交换机处接收数据，指向与第二NPIV的域相关联的主机之一的数据 切换并将数据转发到NPV设备以传送到主机，其中主机的光纤通道标识符（FCID）在第二NPIV交换机故障之前和之后是相同的。 还公开了一种装置。

公开(公告)号：US20110038257A1

公开(公告)日：2011-02-17

申请号：US12539073

申请日：2009-08-11

申请人： Ayan Banerjee ,  Raghava Sivaramu ,  Hariharan Balasubramanian ,  Abhay Roy ,  Santosh Rajagopalan ,  Ronak Desai

发明人： Ayan Banerjee ,  Raghava Sivaramu ,  Hariharan Balasubramanian ,  Abhay Roy ,  Santosh Rajagopalan ,  Ronak Desai

IPC分类号： G06F11/00

CPC分类号： H04L41/0816

摘要： In one embodiment, a method includes obtaining an indication that a state associated with a node is to be changed and preventing data from being received on a first link. The method also includes updating at least one selected from a group including an incoming interface check (IIC) table and an outgoing interface (OIF) table to reflect the state. The state indicates that a second link is to be activated. Finally, the method includes allowing the data to be received on the second link after updating either or both the IIC table and the OIF table and after the timer duration for the NULL value for IIC has expired.

摘要翻译： 在一个实施例中，一种方法包括获得与节点相关联的状态将被改变并防止在第一链路上接收数据的指示。 该方法还包括更新从包括入局接口检查（IIC）表和出局接口（OIF）表的组中选出的至少一个以反映该状态。 状态表示第二个链接被激活。 最后，该方法包括允许在更新IIC表和OIF表之一或两者之后以及在IIC的NULL值的定时器持续时间已经到期之后在第二链路上接收数据。

公开(公告)号：US08593943B2

公开(公告)日：2013-11-26

申请号：US12661679

申请日：2010-03-22

申请人： Christian Sasso ,  Hariharan Balasubramanian ,  Vithal Shirodkar ,  Ronak Desai ,  Ankur Goyal ,  Santosh Rajagopalan

发明人： Christian Sasso ,  Hariharan Balasubramanian ,  Vithal Shirodkar ,  Ronak Desai ,  Ankur Goyal ,  Santosh Rajagopalan

IPC分类号： G01R31/08 ,  H04L12/28

CPC分类号： H04L45/12 ,  H04L41/0668 ,  H04L45/02 ,  H04L45/22 ,  H04L45/28 ,  H04L45/586 ,  H04L49/357 ,  H04L49/70

摘要： In one embodiment, a method includes establishing a link between two N_Port Identifier Virtualization (NPIV) switches, the link having a high cost assigned thereto. The NPIV switches are in communication with a plurality of hosts through an N_Port Virtualization (NPV) device. The method further includes receiving at a first of the NPIV switches, an indication of a failure at a second of the NPIV switches, receiving data at the first NPIV switch, the data destined for one of the hosts associated with a domain of the second NPIV switch, and forwarding the data to the NPV device for delivery to the host, wherein a Fibre Channel Identifier (FCID) of the host is the same before and after the failure at the second NPIV switch. An apparatus is also disclosed.

摘要翻译： 在一个实施例中，一种方法包括在两个N_Port标识符虚拟化（NPIV）交换机之间建立链路，该链路具有高成本分配给它。 NPIV交换机通过N_Port虚拟化（NPV）设备与多个主机通信。 该方法还包括在第一NPIV交换机处接收在第一NPIV交换机的第二个NPIV交换机处的故障的指示，在第一NPIV交换机处接收数据，指向与第二NPIV的域相关联的主机之一的数据 切换并将数据转发到NPV设备以传送到主机，其中主机的光纤通道标识符（FCID）在第二NPIV交换机故障之前和之后是相同的。 还公开了一种装置。

公开(公告)号：US08514876B2

公开(公告)日：2013-08-20

申请号：US12539073

申请日：2009-08-11

申请人： Ayan Banerjee ,  Raghava Sivaramu ,  Hariharan Balasubramanian ,  Abhay Roy ,  Santosh Rajagopalan ,  Ronak Desai

发明人： Ayan Banerjee ,  Raghava Sivaramu ,  Hariharan Balasubramanian ,  Abhay Roy ,  Santosh Rajagopalan ,  Ronak Desai

IPC分类号： H04L12/28

CPC分类号： H04L41/0816

摘要： In one embodiment, a method includes obtaining an indication that a state associated with a node is to be changed and preventing data from being received on a first link. The method also includes updating at least one selected from a group including an incoming interface check (IIC) table and an outgoing interface (OIF) table to reflect the state. The state indicates that a second link is to be activated. Finally, the method includes allowing the data to be received on the second link after updating either or both the IIC table and the OIF table and after the timer duration for the NULL value for IIC has expired.

摘要翻译： 在一个实施例中，一种方法包括获得与节点相关联的状态将被改变并防止在第一链路上接收数据的指示。 该方法还包括更新从包括入局接口检查（IIC）表和出局接口（OIF）表的组中选出的至少一个以反映该状态。 状态表示第二个链接被激活。 最后，该方法包括允许在更新IIC表和OIF表之一或两者之后以及在IIC的NULL值的定时器持续时间已经到期之后在第二链路上接收数据。

公开(公告)号：US09461938B2

公开(公告)日：2016-10-04

申请号：US13477947

申请日：2012-05-22

申请人： Keshav G. Kamble ,  Dar-Ren Leu ,  Uday S. Nagaraj ,  Santosh Rajagopalan

发明人： Keshav G. Kamble ,  Dar-Ren Leu ,  Uday S. Nagaraj ,  Santosh Rajagopalan

IPC分类号： H04L12/50 ,  H04L12/937 ,  H04L12/931

CPC分类号： H04L49/254 ,  H04L49/70

摘要： In one embodiment, a system includes at least one distributed line card (DLC) in electrical communication with at least one switch fabric coupler (SFC) and a meta-controller in electrical communication with the at least one DLC, the meta-controller including a processor for executing logic, logic configured for creating more than one virtual switch and a corresponding virtual control domain (VCD) associated with each virtual switch, wherein each virtual switch includes a plurality of physical ports of one or more of the at least one DLC, and logic configured for autonomously controlling the virtual switches, wherein the system appears to a device external of the system as a single cell switched domain. Other systems are described according to more embodiments.

摘要翻译： 在一个实施例中，系统包括与至少一个交换结构耦合器（SFC）电连接的至少一个分布式线路卡（DLC）和与所述至少一个DLC电通信的元控制器，所述元控制器包括 处理器，用于执行逻辑，逻辑配置用于创建多个虚拟交换机和与每个虚拟交换机相关联的对应的虚拟控制域（VCD），其中每个虚拟交换机包括所述至少一个DLC中的一个或多个的多个物理端口， 以及被配置为用于自主地控制虚拟交换机的逻辑，其中该系统作为单个小区交换域出现在系统外部的设备上。 根据更多实施例描述其它系统。

公开(公告)号：US20130315233A1

公开(公告)日：2013-11-28

申请号：US13477947

申请日：2012-05-22

申请人： Keshav G. Kamble ,  Dar-Ren Leu ,  Uday S. Nagaraj ,  Santosh Rajagopalan

发明人： Keshav G. Kamble ,  Dar-Ren Leu ,  Uday S. Nagaraj ,  Santosh Rajagopalan

IPC分类号： H04L12/50

CPC分类号： H04L49/254 ,  H04L49/70

摘要： In one embodiment, a system includes at least one distributed line card (DLC) in electrical communication with at least one switch fabric coupler (SFC) and a meta-controller in electrical communication with the at least one DLC, the meta-controller including a processor for executing logic, logic configured for creating more than one virtual switch and a corresponding virtual control domain (VCD) associated with each virtual switch, wherein each virtual switch includes a plurality of physical ports of one or more of the at least one DLC, and logic configured for autonomously controlling the virtual switches, wherein the system appears to a device external of the system as a single cell switched domain. Other systems are described according to more embodiments.

摘要翻译： 在一个实施例中，系统包括与至少一个交换结构耦合器（SFC）电连接的至少一个分布式线路卡（DLC）和与所述至少一个DLC电通信的元控制器，所述元控制器包括 处理器，用于执行逻辑，逻辑配置用于创建多个虚拟交换机和与每个虚拟交换机相关联的对应的虚拟控制域（VCD），其中每个虚拟交换机包括所述至少一个DLC中的一个或多个的多个物理端口， 以及被配置为用于自主地控制虚拟交换机的逻辑，其中该系统作为单个小区交换域出现在系统外部的设备上。 根据更多实施例描述其它系统。

公开(公告)号：US20120027017A1

公开(公告)日：2012-02-02

申请号：US12848048

申请日：2010-07-30

申请人： Smita RAI ,  Gayatri Ramachandran ,  Santosh Rajagopalan ,  Chandan Mishra ,  Sanjay Sane ,  Hariharan Balasubramanian

发明人： Smita RAI ,  Gayatri Ramachandran ,  Santosh Rajagopalan ,  Chandan Mishra ,  Sanjay Sane ,  Hariharan Balasubramanian

IPC分类号： H04L12/56

CPC分类号： H04L12/18 ,  H04L12/1886 ,  H04L43/50 ,  H04L47/125 ,  H04L47/15 ,  H04L47/32

摘要： Techniques are described which facilitate multi-destination forwarding in a Layer 2 Multipath (L2MP) network which includes an emulated switch. The emulated switch may correspond to two or more underlying peer link switches in the L2MP network, in which each of the peer link switches is linked to a Classical Ethernet (CE) switch over a virtual port channel (vPC). Traffic received by one of the peer link switches over the vPC is automatically forwarded to the other peer link switch (or switches). Multi-destination frames originating from the L2MP network addressed to hosts within the CE network are sent over only one of the peer link switches.

摘要翻译： 描述了在包括仿真开关的二层多路径（L2MP）网络中促进多目的地转发的技术。 仿真交换机可以对应于L2MP网络中的两个或更多个底层对等链路交换机，其中每个对等链路交换机通过虚拟端口信道（vPC）链接到经典以太网（CE）交换机。 通过vPC上的一个对等链路交换机接收到的流量将自动转发到另一个对等链路交换机（或交换机）。 通过寻址到CE网络内的主机的源自L2MP网络的多目标帧仅通过一个对等链路交换机发送。