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    Segment routing—egress peer engineering (SP-EPE)
    32.
    发明授权
    Segment routing—egress peer engineering (SP-EPE) 有权

    公开(公告)号：US09912577B2

    公开(公告)日：2018-03-06

    申请号：US14637510

    申请日：2015-03-04

    申请人： Cisco Technology, Inc.

    发明人： Clarence Filsfils ,  Keyur P. Patel ,  David D. Ward ,  Pierre Jean Rene François ,  Stefano B. Previdi

    IPC分类号： G06F15/173 ,  H04L12/715

    CPC分类号： H04L45/04 ,  H04L45/46

    摘要： In one embodiment, a controller device in a computer network domain learns border gateway protocol (BGP) egress peering segments from one or more border routers of the domain, and determines a selected flow to segment route via a particular egress peering segment, the selected flow from a given routing device within the domain to a given destination of a remote domain. As such, the controller device may then instruct the given routing device to segment route the selected flow via the particular egress peering segment. In another embodiment, an egress border router shares its BGP egress peering segments, and receives a flow to segment route. The egress border router may determine, from a segment route contained within the flow, to which particular egress peering segment of the border router to segment route the flow, and forwards the flow out of the domain via the particular egress peering segment.

    SEGMENT ROUTING INTO A LABEL DISTRIBUTION PROTOCOL DOMAIN
    34.
    发明申请
    SEGMENT ROUTING INTO A LABEL DISTRIBUTION PROTOCOL DOMAIN 审中-公开
    分段路由到标签分配协议域

    公开(公告)号：US20170019330A1

    公开(公告)日：2017-01-19

    申请号：US15280262

    申请日：2016-09-29

    申请人： Cisco Technology, Inc.

    发明人： Clarence Filsfils ,  Ahmed R. Bashandy ,  David D. Ward ,  Stefano B. Previdi

    IPC分类号： H04L12/723 ,  H04L12/721 ,  H04L12/741 ,  H04L12/24

    CPC分类号： H04L41/12 ,  H04L12/4633 ,  H04L45/04 ,  H04L45/12 ,  H04L45/46 ,  H04L45/50 ,  H04L45/507 ,  H04L45/54 ,  H04L45/74 ,  H04L45/745 ,  H04L47/724 ,  H04L49/608

    摘要： A method, apparatus and memory for forwarding packets through a network domain containing nodes that are label distribution protocol (LDP) enabled and nodes that are segment routing (SR) enabled. In one embodiment, the method may include receiving at a hybrid node a packet with an attached segment identifier and detaching the segment identifier from the packet. This embodiment of the method continues with attaching a first LDP label to the packet after the segment identifier is detached and forwarding the packet with the attached first LDP label on a path toward a first LDP enabled node.

    摘要翻译： 一种用于通过包含启用标签分发协议（LDP）的节点和启用分段路由（SR）的节点的网络域转发分组的方法，装置和存储器。 在一个实施例中，该方法可以包括在混合节点处接收具有附加的段标识符的分组，并从分组中分离分段标识符。 该方法的该实施例在段标识符分离之后继续附加到分组上的第一LDP标签，并且在朝向第一LDP使能节点的路径上转发具有附加的第一LDP标签的分组。

    Method for implicit session routing
    36.
    发明授权
    Method for implicit session routing 有权
    隐式会话路由方法

    公开(公告)号：US09374297B2

    公开(公告)日：2016-06-21

    申请号：US14108994

    申请日：2013-12-17

    申请人： CISCO TECHNOLOGY, INC.

    发明人： Hendrikus G. P. Bosch ,  James N. Guichard ,  David D. Ward ,  Alessandro Duminuco ,  Rex E. Fernando ,  Paul Quinn

    IPC分类号： G06F15/173 ,  H04L12/733 ,  H04L12/707 ,  H04L12/713 ,  H04L12/715 ,  H04L12/703

    CPC分类号： H04L45/20 ,  H04L45/04 ,  H04L45/24 ,  H04L45/28 ,  H04L45/586

    摘要： An example method is provided in one example embodiment and includes receiving a packet of a session from a previous hop router at a service zone of a service chain; recording the previous hop router for the session; determining an appliance to service the packet in the service zone using load balancing; recording an appliance identity for servicing the session in the service zone; determining a next hop router in the service chain for the packet using load balancing; and recording the next hop router for the session.

    摘要翻译： 在一个示例实施例中提供了示例性方法，并且包括从服务链的服务区的前一跳路由器接收会话的分组; 记录会话的上一跳路由器; 确定使用负载平衡来服务所述服务区中的分组的设备; 记录在服务区域中为会话服务的设备身份; 使用负载平衡确定所述分组的服务链中的下一跳路由器; 并为会话记录下一跳路由器。