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    Intelligent host route distribution for low latency forwarding and ubiquitous virtual machine mobility in interconnected data centers
    2.
    发明授权
    Intelligent host route distribution for low latency forwarding and ubiquitous virtual machine mobility in interconnected data centers 有权
    智能主机路由分布，用于低互联数据中心中的低延迟转发和无处不在的虚拟机移动性

    公开(公告)号：US08953624B2

    公开(公告)日：2015-02-10

    申请号：US13721781

    申请日：2012-12-20

    Applicant: Cisco Technology, Inc.

    Inventor： Yibin Yang ,  Chia Tsai ,  Liqin Dong

    IPC: H04L12/28 ,  H04L12/713

    CPC classification number: H04L12/462 ,  H04L45/02 ,  H04L45/586

    Abstract: Techniques are presented for distributing host route information of virtual machines to routing bridges (RBridges). A first RBridge receives a routing message that is associated with a virtual machine and is sent by a second RBridge. The routing message comprises of mobility attribute information associated with a mobility characteristic of the virtual machine obtained from an egress RBridge that distributes the routing message. The first RBridge adds a forwarding table attribute to the routing message that indicates whether or not the first RBridge has host route information associated with the virtual machine in a forwarding table of the first RBridge. The first RBridge also distributes the routing message including the mobility attribute information and the forwarding table attribute, to one or more RBridges in the network.

    Abstract translation: 介绍了将虚拟机的主机路由信息分发给路由桥（RBridges）的技术。 第一RBridge接收与虚拟机关联并由第二RBridge发送的路由消息。 路由消息包括与从分发路由消息的出口RBridge获得的虚拟机的移动性特性相关联的移动性属性信息。 第一RBridge向路由消息添加转发表属性，其指示第一RBridge在第一RBridge的转发表中是否具有与虚拟机相关联的主机路由信息。 第一RBridge还将包括移动性属性信息和转发表属性的路由消息分发到网络中的一个或多个RBridge。

    Level of hierarchy in MST for traffic localization and load balancing
    5.
    发明授权
    Level of hierarchy in MST for traffic localization and load balancing 有权

    公开(公告)号：US10212074B2

    公开(公告)日：2019-02-19

    申请号：US15663503

    申请日：2017-07-28

    Applicant: Cisco Technology, Inc.

    Inventor： Chia Tsai ,  Norman W. Finn ,  Yibin Yang ,  Debashis Patnala Rao

    IPC: H04L12/753 ,  H04L12/715 ,  H04L12/707 ,  H04L12/803

    Abstract: In one embodiment, a multiple spanning tree (MST) region is defined in a network, where the MST region includes a plurality of network nodes interconnected by links. A MST cluster is defined within the MST region, where the MST cluster includes a plurality of network nodes selected from the plurality of network nodes of the MST region. A network node of the MST cluster generates one or more MST bridge protocol data units (BPDUs) that present the MST cluster as a single logical entity to network nodes of the MST region that are not included in the MST cluster, yet enables per-multiple spanning tree instance (per-MSTI) load balancing of traffic across inter-cluster links that connect network nodes included in the MST cluster and network nodes of the MST region that are not included in the MST cluster.

    Techniques for scalable and foolproof virtual machine move handling with virtual port channels
    6.
    发明授权
    Techniques for scalable and foolproof virtual machine move handling with virtual port channels 有权

    公开(公告)号：US09660941B2

    公开(公告)日：2017-05-23

    申请号：US15095430

    申请日：2016-04-11

    Applicant: Cisco Technology, Inc.

    Inventor： Yibin Yang ,  Liqin Dong ,  Chia Tsai

    IPC: H04L12/931 ,  H04L12/751 ,  H04L12/24

    CPC classification number: H04L49/70 ,  H04L41/0813 ,  H04L45/02

    Abstract: Techniques are provided for managing movements of virtual machines in a network. At a first switch, a virtual machine (VM) is detected. The VM is hosted by a physical server coupled to the first switch. A message is sent to other switches and it indicates that the VM is hosted by the physical server. When the first switch is paired with a second switch as a virtual port channel (vPC) pair, the message includes a switch identifier that identifies the second switch. A receiving switch receives the message from a source switch in the network comprising a route update associated with the VM. A routing table of the receiving switch is evaluated to determine whether the host route is associated with a server facing the physical port. The message is examined to determine it contains the switch identifier.

    TECHNIQUES FOR SCALABLE AND FOOLPROOF VIRTUAL MACHINE MOVE HANDLING WITH VIRTUAL PORT CHANNELS
    8.
    发明申请
    TECHNIQUES FOR SCALABLE AND FOOLPROOF VIRTUAL MACHINE MOVE HANDLING WITH VIRTUAL PORT CHANNELS 审中-公开
    可扩展和虚拟机虚拟机移动处理虚拟端口通道的技术

    公开(公告)号：US20160226798A1

    公开(公告)日：2016-08-04

    申请号：US15095430

    申请日：2016-04-11

    Applicant: Cisco Technology, Inc.

    Inventor： Yibin Yang ,  Liqin Dong ,  Chia Tsai

    IPC: H04L12/931 ,  H04L12/751 ,  H04L12/24

    CPC classification number: H04L49/70 ,  H04L41/0813 ,  H04L45/02

    Abstract: Techniques are provided for managing movements of virtual machines in a network. At a first switch, a virtual machine (VM) is detected. The VM is hosted by a physical server coupled to the first switch. A message is sent to other switches and it indicates that the VM is hosted by the physical server. When the first switch is paired with a second switch as a virtual port channel (vPC) pair, the message includes a switch identifier that identifies the second switch. A receiving switch receives the message from a source switch in the network comprising a route update associated with the VM. A routing table of the receiving switch is evaluated to determine whether the host route is associated with a server facing the physical port. The message is examined to determine it contains the switch identifier.

    Abstract translation: 提供技术来管理网络中的虚拟机的移动。 在第一交换机处，检测虚拟机（VM）。 VM由耦合到第一交换机的物理服务器托管。 一条消息被发送到其他交换机，它表示该虚拟机由物理服务器托管。 当第一交换机与第二交换机配对作为虚拟端口信道（vPC）对时，消息包括标识第二交换机的交换机标识符。 接收交换机从网络中的源交换机接收包括与VM关联的路由更新的消息。 评估接收交换机的路由表以确定主机路由是否与面向物理端口的服务器相关联。 检查该消息以确定其包含交换机标识符。

    LEVEL OF HIERARCHY IN MST FOR TRAFFIC LOCALIZATION AND LOAD BALANCING
    9.
    发明申请
    LEVEL OF HIERARCHY IN MST FOR TRAFFIC LOCALIZATION AND LOAD BALANCING 审中-公开

    公开(公告)号：US20170331730A1

    公开(公告)日：2017-11-16

    申请号：US15663503

    申请日：2017-07-28

    Applicant: Cisco Technology, Inc.

    Inventor： Chia Tsai ,  Norman W. Finn ,  Yibin Yang ,  Debashis Patnala Rao

    IPC: H04L12/753 ,  H04L12/707 ,  H04L12/715 ,  H04L12/803

    CPC classification number: H04L45/48 ,  H04L45/04 ,  H04L45/24 ,  H04L45/46 ,  H04L47/125

    Abstract: In one embodiment, a multiple spanning tree (MST) region is defined in a network, where the MST region includes a plurality of network nodes interconnected by links. A MST cluster is defined within the MST region, where the MST cluster includes a plurality of network nodes selected from the plurality of network nodes of the MST region. A network node of the MST cluster generates one or more MST bridge protocol data units (BPDUs) that present the MST cluster as a single logical entity to network nodes of the MST region that are not included in the MST cluster, yet enables per-multiple spanning tree instance (per-MSTI) load balancing of traffic across inter-cluster links that connect network nodes included in the MST cluster and network nodes of the MST region that are not included in the MST cluster.

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