公开(公告)号：US09584397B2

公开(公告)日：2017-02-28

申请号：US14142402

申请日：2013-12-27

申请人： DELL PRODUCTS L.P.

发明人： Anoop Ghanwani ,  Krishnamurthy Subramanian ,  Pathangi Janardhanan ,  Shivakumar Sundaram ,  Mohnish Anumala

IPC分类号： H04L12/24 ,  H04L12/715 ,  H04L12/713 ,  H04L12/753

CPC分类号： H04L45/245 ,  H04L12/4675 ,  H04L12/6418 ,  H04L41/0663 ,  H04L41/0668 ,  H04L41/083 ,  H04L41/12 ,  H04L45/02 ,  H04L45/04 ,  H04L45/16 ,  H04L45/48 ,  H04L45/586 ,  H04L47/15 ,  H04L49/25 ,  H04L49/354 ,  H04L49/70 ,  H04L69/324 ,  Y02D50/30

摘要： Aspects of the present invention include extending routing capabilities to improve networking efficiencies. In embodiments, a spine-leaf network configuration may be provisioned as a single router to solve at least two issues: (1) local routing within a leaf; and (2) scalability of the hardware ARP table. In embodiments, one or more tables in the leaf node may be programmed so that data traffic coming from a first host in a first subnet or VLAN on the leaf and intended for a second host in a second subnet or VLAN on the leaf may be forwarded locally to the second host in the second subnet or VLAN without traversing to the spine layer.

摘要翻译： 本发明的方面包括扩展路由能力以提高组网效率。 在实施例中，脊叶网络配置可以被提供为单个路由器以解决至少两个问题：（1）叶内的本地路由; 和（2）硬件ARP表的可扩展性。 在实施例中，叶节点中的一个或多个表可以被编程，使得来自第一子网中的第一主机或叶上的VLAN的数据业务和用于叶片上的第二子网或VLAN中的第二主机的数据业务可以被转发 本地连接到第二个子网或VLAN中的第二个主机，而不会遍历到脊骨层。

公开(公告)号：US09379945B2

公开(公告)日：2016-06-28

申请号：US14198602

申请日：2014-03-06

申请人： DELL PRODUCTS, L.P.

发明人： Pathangi Janardhanan ,  Shivakumar Sundaram ,  Avinash Natarajan

IPC分类号： H04L12/24

CPC分类号： H04L45/245 ,  H04L12/4675 ,  H04L12/6418 ,  H04L41/0663 ,  H04L41/0668 ,  H04L41/083 ,  H04L41/12 ,  H04L45/02 ,  H04L45/04 ,  H04L45/16 ,  H04L45/48 ,  H04L45/586 ,  H04L47/15 ,  H04L49/25 ,  H04L49/354 ,  H04L49/70 ,  H04L69/324 ,  Y02D50/30

摘要： Aspects of the present invention include an arbitrary N-Node virtual link trunking (VLT) system comprising a set of N nodes collectively provide a logical fabric-level view that is consistent across the set of N nodes. Embodiments of the arbitrary N-Node VLT system comprise a control plane mechanism to provide Layer 2 multipathing between access network devices (switches or servers) and the core network. The N-Node VLT system provides a loop-free topology with active-active load-sharing of uplinks from access to the core. Accordingly, the N-Node VLT system eliminates the disadvantage of Spanning Tree Protocol (STP) (active-standby links) by allowing link aggregation group (LAG) terminations on multiple separate distribution or core switches and also supporting a loop-free topology. Additional benefits of an N-Node VLT system include, but are not limited to, higher resiliency, improved link utilization, and improved manageability of the network.

摘要翻译： 本发明的方面包括包括一组N个节点的任意N节点虚拟链路中继（VLT）系统，共同提供在所述N个节点集合中一致的逻辑体系级视图。 任意N节点VLT系统的实施例包括控制平面机制，以在接入网络设备（交换机或服务器）和核心网络之间提供第2层多路径。 N节点VLT系统提供无环路拓扑，具有从接入到核心的上行链路的主动 - 主动负载共享。 因此，N-Node VLT系统通过允许在多个分开的分配或核心交换机上的链路聚合组（LAG）终端并且还支持无环路拓扑来消除生成树协议（STP）（主备链路）的缺点。 N节点VLT系统的额外优点包括但不限于更高的弹性，改善的链路利用率和改进的网络的可管理性。

公开(公告)号：US10389655B2

公开(公告)日：2019-08-20

申请号：US14493155

申请日：2014-09-22

申请人： DELL PRODUCTS L.P.

发明人： Pathangi Janardhanan

IPC分类号： H04L12/931 ,  H04L29/06 ,  H04L29/08

摘要： Embodiments of the present invention include systems and methods for minoring data packets upon triggering of events in a network device. In the network device, a usage event is specified, where occurrence of the usage event is indeterminable, at least partially, from the information contained in the data packets. When the network device receives a data packet via an input port, it processes the data packet as the data packet flows along a pipeline in the network device. If a specified usage event is triggered while being processed, the data packet is mirrored via an output port of the network device so that the mirrored data packet may be analyzed by an analysis engine.

公开(公告)号：US20160241409A1

公开(公告)日：2016-08-18

申请号：US15136747

申请日：2016-04-22

申请人： Dell Products L.P.

发明人： Anoop GHANWANI ,  Krishnamurthy Subramanian ,  Mohnish Anumala ,  Shivakumar Sundaram ,  Pathangi Janardhanan

IPC分类号： H04L12/18 ,  G06F9/455 ,  H04L29/12 ,  H04L12/755 ,  H04L12/931

CPC分类号： H04L12/18 ,  G06F9/45558 ,  G06F9/5072 ,  G06F2009/45595 ,  H04L12/185 ,  H04L45/021 ,  H04L49/201 ,  H04L49/70 ,  H04L61/103

摘要： An information handling system is provided. The information handling system includes a first hypervisor running on a first host and a second hypervisor running on a second host. The first hypervisor managing a first virtual switch, and the second hypervisor managing a second virtual switch. The information handling system also includes a plurality of virtual machines (VMs), including a first VM, which is part of a first tenant, running on the first host, and a second VM, part of a second tenant, running on the second host. The first virtual switch has a mapping in memory that maps a customer-specific multicast IP address, used by the plurality of VMs to indicate a multicast group that includes VMs on the first and second tenants, to a global multicast IP address used by the first and second hosts.

摘要翻译： 提供信息处理系统。 信息处理系统包括在第一主机上运行的第一虚拟机管理程序和在第二主机上运行的第二管理程序。 管理第一虚拟交换机的第一管理程序，以及管理第二虚拟交换机的第二管理程序。 信息处理系统还包括多个虚拟机（VM），其包括作为在第一主机上运行的第一租户的一部分的第一VM和在第二主机上运行的第二租户的第二VM 。 所述第一虚拟交换机具有映射存储器中的映射，所述映射映射由所述多个VM使用的用户特定的多播IP地址，以将包括所述第一和第二租户的VM的多播组指示到所述第一 和第二主机。

公开(公告)号：US09350619B2

公开(公告)日：2016-05-24

申请号：US14198602

申请日：2014-03-06

申请人： DELL PRODUCTS, L.P.

发明人： Pathangi Janardhanan ,  Shivakumar Sundaram ,  Avinash Natarajan

IPC分类号： H04L12/24

摘要： Aspects of the present invention include an arbitrary N-Node virtual link trunking (VLT) system comprising a set of N nodes collectively provide a logical fabric-level view that is consistent across the set of N nodes. Embodiments of the arbitrary N-Node VLT system comprise a control plane mechanism to provide Layer 2 multipathing between access network devices (switches or servers) and the core network. The N-Node VLT system provides a loop-free topology with active-active load-sharing of uplinks from access to the core. Accordingly, the N-Node VLT system eliminates the disadvantage of Spanning Tree Protocol (STP) (active-standby links) by allowing link aggregation group (LAG) terminations on multiple separate distribution or core switches and also supporting a loop-free topology. Additional benefits of an N-Node VLT system include, but are not limited to, higher resiliency, improved link utilization, and improved manageability of the network.

公开(公告)号：US09288138B2

公开(公告)日：2016-03-15

申请号：US14142170

申请日：2013-12-27

申请人： DELL PRODUCTS L.P.

发明人： Anoop Ghanwani ,  Krishnamurthy Subramanian ,  Pathangi Janardhanan ,  Shivakumar Sundaram ,  Mohnish Anumala

IPC分类号： H04L12/709 ,  H04L12/751 ,  H04L12/46 ,  H04L12/947 ,  H04L12/931

CPC分类号： H04L45/245 ,  H04L12/4675 ,  H04L12/6418 ,  H04L41/0663 ,  H04L41/0668 ,  H04L41/083 ,  H04L41/12 ,  H04L45/02 ,  H04L45/04 ,  H04L45/16 ,  H04L45/48 ,  H04L45/586 ,  H04L47/15 ,  H04L49/25 ,  H04L49/354 ,  H04L49/70 ,  H04L69/324 ,  Y02D50/30

摘要： Aspects of the present invention include an N-Node virtual link trunking (VLT) system comprising a set of N nodes collectively provide a logical fabric-level view that is consistent across the set of N nodes. Embodiments of the N-Node VLT system comprise a control plane mechanism to provide Layer 2 multipathing between access network devices (switches or servers) and the core network. The N-Node VLT system provides a loop-free topology with active-active load-sharing of uplinks from access to the core. Accordingly, the N-Node VLT system eliminates the disadvantage of Spanning Tree Protocol (STP) (active-standby links) by allowing link aggregation group (LAG) terminations on multiple separate distribution or core switches and also supporting a loop-free topology. Additional benefits of an N-Node VLT system include, but are not limited to, higher resiliency, improved link utilization, and improved manageability of the network.

摘要翻译： 本发明的方面包括包括一组N个节点的N节点虚拟链路中继（VLT）系统，共同地提供在所述N个节点集合中一致的逻辑体系级视图。 N节点VLT系统的实施例包括在接入网络设备（交换机或服务器）和核心网络之间提供第2层多路径的控制平面机制。 N节点VLT系统提供无环路拓扑，具有从接入到核心的上行链路的主动 - 主动负载共享。 因此，N-Node VLT系统通过允许在多个分开的分配或核心交换机上的链路聚合组（LAG）终端并且还支持无环路拓扑来消除生成树协议（STP）（主备链路）的缺点。 N节点VLT系统的额外优点包括但不限于更高的弹性，改善的链路利用率和改进的网络的可管理性。

公开(公告)号：US09264308B2

公开(公告)日：2016-02-16

申请号：US14142263

申请日：2013-12-27

申请人： DELL PRODUCTS L.P.

发明人： Mohnish Anumala ,  Krishnamurthy Subramanian ,  Pathangi Janardhanan ,  Anoop Ghanwani ,  Shivakumar Sundaram ,  Avinash Natarajan

IPC分类号： H04L12/24 ,  H04L12/709 ,  H04L12/801

CPC分类号： H04L45/245 ,  H04L12/4675 ,  H04L12/6418 ,  H04L41/0663 ,  H04L41/0668 ,  H04L41/083 ,  H04L41/12 ,  H04L45/02 ,  H04L45/04 ,  H04L45/16 ,  H04L45/48 ,  H04L45/586 ,  H04L47/15 ,  H04L49/25 ,  H04L49/354 ,  H04L49/70 ,  H04L69/324 ,  Y02D50/30

摘要： Aspects of the present invention include an N-Node virtual link trunking (VLT) system comprising a set of N nodes collectively provide a logical fabric-level view that is consistent across the set of N nodes. Embodiments of the N-Node VLT system comprise a control plane mechanism to provide Layer 2 multipathing between access network devices (switches or servers) and the core network. The N-Node VLT system provides a loop-free topology with active-active load-sharing of uplinks from access to the core. Accordingly, the N-Node VLT system eliminates the disadvantage of Spanning Tree Protocol (STP) (active-standby links) by allowing link aggregation group (LAG) terminations on multiple separate distribution or core switches and also supporting a loop-free topology. Additional benefits of an N-Node VLT system include, but are not limited to, higher resiliency, improved link utilization, and improved manageability of the network.

摘要翻译： 本发明的方面包括包括一组N个节点的N节点虚拟链路中继（VLT）系统，共同地提供在所述N个节点集合中一致的逻辑体系级视图。 N节点VLT系统的实施例包括在接入网络设备（交换机或服务器）和核心网络之间提供第2层多路径的控制平面机制。 N节点VLT系统提供无环路拓扑，具有从接入到核心的上行链路的主动 - 主动负载共享。 因此，N-Node VLT系统通过允许在多个分开的分配或核心交换机上的链路聚合组（LAG）终端并且还支持无环路拓扑来消除生成树协议（STP）（主备链路）的缺点。 N节点VLT系统的额外优点包括但不限于更高的弹性，改善的链路利用率和改进的网络的可管理性。

公开(公告)号：US20150256405A1

公开(公告)日：2015-09-10

申请号：US14198602

申请日：2014-03-06

申请人： DELL PRODUCTS, L.P.

发明人： Pathangi Janardhanan ,  Shivakumar Sundaram ,  Avinash Natarajan

IPC分类号： H04L12/24

CPC分类号： H04L45/245 ,  H04L12/4675 ,  H04L12/6418 ,  H04L41/0663 ,  H04L41/0668 ,  H04L41/083 ,  H04L41/12 ,  H04L45/02 ,  H04L45/04 ,  H04L45/16 ,  H04L45/48 ,  H04L45/586 ,  H04L47/15 ,  H04L49/25 ,  H04L49/354 ,  H04L49/70 ,  H04L69/324 ,  Y02D50/30

摘要： Aspects of the present invention include an arbitrary N-Node virtual link trunking (VLT) system comprising a set of N nodes collectively provide a logical fabric-level view that is consistent across the set of N nodes. Embodiments of the arbitrary N-Node VLT system comprise a control plane mechanism to provide Layer 2 multipathing between access network devices (switches or servers) and the core network. The N-Node VLT system provides a loop-free topology with active-active load-sharing of uplinks from access to the core. Accordingly, the N-Node VLT system eliminates the disadvantage of Spanning Tree Protocol (STP) (active-standby links) by allowing link aggregation group (LAG) terminations on multiple separate distribution or core switches and also supporting a loop-free topology. Additional benefits of an N-Node VLT system include, but are not limited to, higher resiliency, improved link utilization, and improved manageability of the network.

摘要翻译： 本发明的方面包括包括一组N个节点的任意N节点虚拟链路中继（VLT）系统，共同提供在所述N个节点集合中一致的逻辑体系级视图。 任意N节点VLT系统的实施例包括控制平面机制，以在接入网络设备（交换机或服务器）和核心网络之间提供第2层多路径。 N节点VLT系统提供无环路拓扑，具有从接入到核心的上行链路的主动 - 主动负载共享。 因此，N-Node VLT系统通过允许在多个分开的分配或核心交换机上的链路聚合组（LAG）终端并且还支持无环路拓扑来消除生成树协议（STP）（主备链路）的缺点。 N节点VLT系统的额外优点包括但不限于更高的弹性，改善的链路利用率和改进的网络的可管理性。

公开(公告)号：US09698995B2

公开(公告)日：2017-07-04

申请号：US15136747

申请日：2016-04-22

申请人： Dell Products L.P.

发明人： Anoop Ghanwani ,  Krishnamurthy Subramanian ,  Mohnish Anumala ,  Shivakumar Sundaram ,  Pathangi Janardhanan

IPC分类号： H04L12/28 ,  H04L12/18 ,  G06F9/455 ,  H04L12/755 ,  H04L29/12 ,  H04L12/931 ,  G06F9/50

CPC分类号： H04L12/18 ,  G06F9/45558 ,  G06F9/5072 ,  G06F2009/45595 ,  H04L12/185 ,  H04L45/021 ,  H04L49/201 ,  H04L49/70 ,  H04L61/103

摘要： An information handling system is provided. The information handling system includes a first hypervisor running on a first host and a second hypervisor running on a second host. The first hypervisor managing a first virtual switch, and the second hypervisor managing a second virtual switch. The information handling system also includes a plurality of virtual machines (VMs), including a first VM, which is part of a first tenant, running on the first host, and a second VM, part of a second tenant, running on the second host. The first virtual switch has a mapping in memory that maps a customer-specific multicast IP address, used by the plurality of VMs to indicate a multicast group that includes VMs on the first and second tenants, to a global multicast IP address used by the first and second hosts.

公开(公告)号：US09350558B2

公开(公告)日：2016-05-24

申请号：US13737919

申请日：2013-01-09

申请人： Dell Products L.P.

发明人： Anoop Ghanwani ,  Krishnamurthy Subramanian ,  Mohnish Anumala ,  Shivakumar Sundaram ,  Pathangi Janardhanan

IPC分类号： H04L12/28 ,  H04L12/18 ,  G06F9/455 ,  H04L12/931 ,  H04L12/755 ,  G06F9/50 ,  H04L29/12

CPC分类号： H04L12/18 ,  G06F9/45558 ,  G06F9/5072 ,  G06F2009/45595 ,  H04L12/185 ,  H04L45/021 ,  H04L49/201 ,  H04L49/70 ,  H04L61/103

摘要： An information handling system is provided. The information handling system includes a first hypervisor running on a first host and a second hypervisor running on a second host. The first hypervisor managing a first virtual switch, and the second hypervisor managing a second virtual switch. The information handling system also includes a plurality of virtual machines (VMs), including a first VM, which is part of a first tenant, running on the first host, and a second VM, part of a second tenant, running on the second host. The first virtual switch has a mapping in memory that maps a customer-specific multicast IP address, used by the plurality of VMs to indicate a multicast group that includes VMs on the first and second tenants, to a global multicast IP address used by the first and second hosts.

摘要翻译： 提供信息处理系统。 信息处理系统包括在第一主机上运行的第一虚拟机管理程序和在第二主机上运行的第二管理程序。 管理第一虚拟交换机的第一管理程序，以及管理第二虚拟交换机的第二管理程序。 信息处理系统还包括多个虚拟机（VM），其包括作为在第一主机上运行的第一租户的一部分的第一VM和在第二主机上运行的第二租户的第二VM 。 所述第一虚拟交换机具有映射存储器中的映射，所述映射映射由所述多个VM使用的用户特定的多播IP地址，以将包括所述第一和第二租户的VM的多播组指示到所述第一 和第二主机。