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公开(公告)号：US20180173557A1
公开(公告)日：2018-06-21
申请号：US15897052
申请日：2018-02-14
Applicant: Juniper Networks, Inc.
Inventor： Harshad Bhaskar Nakil , Ankur Singla , Pedro R. Marques
CPC classification number: G06F9/45558 , G06F9/455 , G06F11/07 , G06F2009/45595 , H04L41/0631 , H04L41/0856 , H04L41/0893 , H04L43/0852 , H04L43/10 , H04L49/70 , H04L61/103 , H04L69/40
Abstract: In general, techniques are described for configuring and managing virtual networks. For example, a distributed virtual network controller is described that configures and manages an overlay network within a physical network formed by plurality of switches. A plurality of servers are interconnected by the switch fabric, each of the servers comprising an operating environment executing one or more virtual machines in communication via the overlay networks. The servers comprises a set of virtual switches that extends the overlay network as a virtual network to the operating environment of the virtual machines. The controller may instruct the servers and the virtual switches to perform various operations, such as determining a physical network path taken by packets of a network packet flow, determining latency through the network, re-routing traffic in the virtual network due to network events, replicating traffic for multicasting, providing multi-tenant services to support multiple virtual networks, monitoring and logging traffic characteristics within the virtual networks and other operations.
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2.发明申请公开(公告)号：US20150146536A1
公开(公告)日：2015-05-28
申请号：US14152137
申请日：2014-01-10
Applicant: Juniper Networks, Inc.
Inventor： Ina Minei , Pedro R. Marques
IPC: H04L12/803 , H04L12/723
CPC classification number: H04L45/507 , H04L45/02
Abstract: In general, techniques are described for automated traffic mapping for multi-protocol label switching (MPLS) networks. A network device comprising a processor and an interface card may perform the techniques. The processor may generate an advertisement that conforms to a routing protocol. The advertisement may advertise a mapping between a network flow and a label switched path (LSP) tag. The processor may also generate a communication associating the label switched path tag with an LSP. The interface card may transmit the advertisement to a head-end label edge router that admits traffic into the LSP identified by the LSP tag. The interface card may also transmit the communication to the label edge router such that the label edge router is able to process the communication in conjunction with the advertisement to map the network flow to the LSP identified by the LSP tag.
Abstract translation: 通常，描述了用于多协议标签交换（MPLS）网络的自动流量映射的技术。 包括处理器和接口卡的网络设备可以执行这些技术。 处理器可以生成符合路由协议的广告。 广告可以通告网络流和标签交换路径（LSP）标签之间的映射。 处理器还可以生成将标签交换路径标签与LSP相关联的通信。 接口卡可以将广告发送到接收到由LSP标签标识的LSP中的流量的前端标签边缘路由器。 接口卡还可以将通信发送到标签边缘路由器，使得标签边缘路由器能够处理与广告结合的通信，以将网络流映射到由LSP标签识别的LSP。
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公开(公告)号：US20130329605A1
公开(公告)日：2013-12-12
申请号：US13843365
申请日：2013-03-15
Applicant: JUNIPER NETWORKS, INC.
Inventor： Harshad Bhaskar Nakil , Pedro R. Marques , Hampapur Ajay , Ashish Ranjan , Ankur Singla
IPC: H04L12/56
CPC classification number: H04L41/0668 , H04L41/0659 , H04L41/12 , H04L45/02 , H04L45/28 , H04L49/70 , H04L67/32
Abstract: Techniques are described to provide multicast service within a virtual network using a virtual network controller and endpoint replication without requiring multicast support in the underlying network. The virtual network controller is configured to create a multicast tree for endpoint devices of a multicast group in the virtual network at a centralized location instead of in a distributed fashion. The virtual network controller communicates the multicast tree to one or more of the endpoint devices of the multicast group to instruct the endpoint devices to replicate and forward multicast packets to other endpoint devices according to the multicast tree. The replication and forwarding of multicast packets is performed by virtual switches executed on the endpoint devices in the virtual network. No replication is performed within the underlying network. The techniques enable multicast service within a virtual network without requiring multicast support in the underlying network.
Abstract translation: 描述技术来使用虚拟网络控制器和端点复制在虚拟网络内提供多播服务，而不需要在底层网络中进行组播支持。 虚拟网络控制器被配置为在集中位置而不是以分布式方式为虚拟网络中的多播组的端点设备创建多播树。 虚拟网络控制器将多播树通信给组播组的一个或多个端点设备，以指示端点设备根据多播树复制和转发组播数据包到其他端点设备。 组播数据包的复制和转发由在虚拟网络中的端点设备上执行的虚拟交换机执行。 底层网络中不执行复制。 这些技术使得虚拟网络内的多播服务能够在底层网络中不需要组播支持。
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公开(公告)号：US09374270B2
公开(公告)日：2016-06-21
申请号：US13843365
申请日：2013-03-15
Applicant: Juniper Networks, Inc.
Inventor： Harshad Bhaskar Nakil , Pedro R. Marques , Hampapur Ajay , Ashish Ranjan , Ankur Singla
IPC: H04L12/28 , H04L12/24 , H04L12/931 , H04L12/751 , H04L29/08 , H04L12/703
CPC classification number: H04L41/0668 , H04L41/0659 , H04L41/12 , H04L45/02 , H04L45/28 , H04L49/70 , H04L67/32
Abstract: Techniques are described to provide multicast service within a virtual network using a virtual network controller and endpoint replication without requiring multicast support in the underlying network. The virtual network controller is configured to create a multicast tree for endpoint devices of a multicast group in the virtual network at a centralized location instead of in a distributed fashion. The virtual network controller communicates the multicast tree to one or more of the endpoint devices of the multicast group to instruct the endpoint devices to replicate and forward multicast packets to other endpoint devices according to the multicast tree. The replication and forwarding of multicast packets is performed by virtual switches executed on the endpoint devices in the virtual network. No replication is performed within the underlying network. The techniques enable multicast service within a virtual network without requiring multicast support in the underlying network.
Abstract translation: 描述技术来使用虚拟网络控制器和端点复制在虚拟网络内提供多播服务，而不需要在底层网络中进行组播支持。 虚拟网络控制器被配置为在集中位置而不是以分布式方式为虚拟网络中的多播组的端点设备创建多播树。 虚拟网络控制器将多播树通信给组播组的一个或多个端点设备，以指示端点设备根据多播树复制和转发组播数据包到其他端点设备。 组播数据包的复制和转发由在虚拟网络中的端点设备上执行的虚拟交换机执行。 底层网络中不执行复制。 这些技术使得虚拟网络内的多播服务能够在底层网络中不需要组播支持。
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公开(公告)号：US08953441B2
公开(公告)日：2015-02-10
申请号：US13840902
申请日：2013-03-15
Applicant: Juniper Networks, Inc.
Inventor： Harshad Bhaskar Nakil , Pedro R. Marques , Hampapur Ajay , Ashish Ranjan , Ankur Singla
IPC: H04L12/26 , H04L12/24 , H04L12/751 , H04L29/08
CPC classification number: H04L41/0668 , H04L41/0659 , H04L41/12 , H04L45/02 , H04L45/28 , H04L49/70 , H04L67/32
Abstract: In one example, a network device includes a virtual network agent, and a network interface to send network packets to the virtual network controller using a default route for a physical network prior to establishing a communication session between a virtual network controller and the virtual network agent, wherein, after establishing the communication session between the virtual network controller device and the virtual network agent, the virtual network agent receives from the virtual network controller a command to install a new route at the network device, wherein the new route specifies encapsulation information to use for encapsulating network packets for sending the network packets to the virtual network controller over an overlay network, and wherein, responsive to detecting a failed link in the physical network, the virtual network agent sends packets to the virtual network controller on an alternate route in the overlay network.
Abstract translation: 在一个示例中，网络设备包括虚拟网络代理和网络接口，用于在虚拟网络控制器和虚拟网络代理之间建立通信会话之前，使用物理网络的默认路由向虚拟网络控制器发送网络分组 其中，在虚拟网络控制器设备和虚拟网络代理建立通信会话之后，虚拟网络代理从虚拟网络控制器接收在网络设备上安装新路由的命令，其中新路由指定封装信息 用于封装网络分组以通过覆盖网络将网络分组发送到虚拟网络控制器，并且其中响应于检测物理网络中的故障链路，虚拟网络代理在备用路由上向虚拟网络控制器发送分组 覆盖网络。
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Patent Agency Ranking
公开(公告)号：US20130332577A1
公开(公告)日：2013-12-12
申请号：US13835017
申请日：2013-03-15
Applicant: JUNIPER NETWORKS, INC.
Inventor： Harshad Bhaskar Nakil , Pedro R. Marques , Hampapur Ajay , Ashish Ranjan , Ankur Singla
IPC: H04L29/08
CPC classification number: H04L41/0668 , H04L41/0659 , H04L41/12 , H04L45/02 , H04L45/28 , H04L49/70 , H04L67/32
Abstract: In general, techniques are described for facilitating multi-tenancy of a server accessed by virtual networks of a data center. A device included within a data center comprising one or more processors may perform the techniques. The processors may be configured to execute a virtual switch that supports a number of virtual networks executing within the data center. The virtual switch may be configured to receive a request regarding data associated with an identifier that is unique within one of the virtual networks that originated the request. The virtual switch may then translate the identifier included within the request to generate a globally unique identifier that is unique within the plurality of virtual networks, update the request to replace the identifier included within the request with the globally unique identifier, and transmit the updated request to a server of the data center.
Abstract translation: 通常，描述了用于促进由数据中心的虚拟网络访问的服务器的多租户的技术。 包括在包括一个或多个处理器的数据中心内的设备可以执行该技术。 处理器可以被配置为执行支持在数据中心内执行的多个虚拟网络的虚拟交换机。 虚拟交换机可以被配置为接收关于与发起请求的虚拟网络之一内的唯一的标识符相关联的数据的请求。 虚拟交换机然后可以转换包括在请求内的标识符，以生成在多个虚拟网络中是唯一的全局唯一标识符，更新请求以用全局唯一标识符替换请求中包含的标识符，并且发送更新的请求 到数据中心的服务器。
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公开(公告)号：US10565001B2
公开(公告)日：2020-02-18
申请号：US15897052
申请日：2018-02-14
Applicant: Juniper Networks, Inc.
Inventor： Harshad Bhaskar Nakil , Ankur Singla , Pedro R. Marques
Abstract: In general, techniques are described for configuring and managing virtual networks. For example, a distributed virtual network controller is described that configures and manages an overlay network within a physical network formed by plurality of switches. A plurality of servers are interconnected by the switch fabric, each of the servers comprising an operating environment executing one or more virtual machines in communication via the overlay networks. The servers comprises a set of virtual switches that extends the overlay network as a virtual network to the operating environment of the virtual machines. The controller may instruct the servers and the virtual switches to perform various operations, such as determining a physical network path taken by packets of a network packet flow, determining latency through the network, re-routing traffic in the virtual network due to network events, replicating traffic for multicasting, providing multi-tenant services to support multiple virtual networks, monitoring and logging traffic characteristics within the virtual networks and other operations.
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公开(公告)号：US10193801B2
公开(公告)日：2019-01-29
申请号：US14152137
申请日：2014-01-10
Applicant: Juniper Networks, Inc.
Inventor： Ina Minei , Pedro R. Marques
IPC: H04L12/723 , H04L12/751
Abstract: In general, techniques are described for automated traffic mapping for multi-protocol label switching (MPLS) networks. A network device comprising a processor and an interface card may perform the techniques. The processor may generate an advertisement that conforms to a routing protocol. The advertisement may advertise a mapping between a network flow and a label switched path (LSP) tag. The processor may also generate a communication associating the label switched path tag with an LSP. The interface card may transmit the advertisement to a head-end label edge router that admits traffic into the LSP identified by the LSP tag. The interface card may also transmit the communication to the label edge router such that the label edge router is able to process the communication in conjunction with the advertisement to map the network flow to the LSP identified by the LSP tag.
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公开(公告)号：US09929911B1
公开(公告)日：2018-03-27
申请号：US14921069
申请日：2015-10-23
Applicant: Juniper Networks, Inc.
Inventor： Rajashekar Reddy , Ankur Singla , Harshad Bhaskar Nakil , Pedro R. Marques , Ashish Ranjan
IPC: H04L12/26 , H04L12/28 , H04L12/24 , H04L12/775
CPC classification number: H04L41/0886 , H04L41/0668 , H04L41/0806 , H04L41/0893 , H04L45/00 , H04L45/58 , H04L45/583 , Y02D30/30
Abstract: In general, techniques are described in which a plurality of network switches automatically configure themselves to operate as a single virtual network switch. A virtual switch is a collection of individual switch devices that operate like as single network switch. As described herein, network switches in a network that are capable of participating in a virtual switch may automatically discover one another. The participating network switches may then elect one of the participating switches as a master switch. The master switch may generate forwarding information and store the forwarding information in the participating switches, including the master switch. The forwarding information causes the participating switches to act like a single network switch.
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公开(公告)号：US09172609B1
公开(公告)日：2015-10-27
申请号：US14228231
申请日：2014-03-27
Applicant: Juniper Networks, Inc.
Inventor： Rajashekar Reddy , Ankur Singla , Harshad Bhaskar Nakil , Pedro R. Marques , Ashish Ranjan
CPC classification number: H04L41/0886 , H04L41/0668 , H04L41/0806 , H04L41/0893 , H04L45/00 , H04L45/58 , H04L45/583 , Y02D30/30
Abstract: In general, techniques are described in which a plurality of network switches automatically configure themselves to operate as a single virtual network switch. A virtual switch is a collection of individual switch devices that operate like as single network switch. As described herein, network switches in a network that are capable of participating in a virtual switch may automatically discover one another. The participating network switches may then elect one of the participating switches as a master switch. The master switch may generate forwarding information and store the forwarding information in the participating switches, including the master switch. The forwarding information causes the participating switches to act like a single network switch.
Abstract translation: 通常，描述了其中多个网络交换机自动配置自身以作为单个虚拟网络交换机操作的技术。 虚拟交换机是像单个网络交换机一样操作的单独交换机设备的集合。 如本文所述，能够参与虚拟交换机的网络中的网络交换机可以自动地彼此发现。 参与的网络交换机然后可以将参与交换机之一作为主交换机。 主交换机可以生成转发信息，并将转发信息存储在参与交换机中，包括主交换机。 转发信息使参与的交换机像单个网络交换机那样起作用。
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