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    NETWORK FABRIC OVERLAY
    251.
    发明申请
    NETWORK FABRIC OVERLAY 有权
    网络织物覆盖

    公开(公告)号：US20150124826A1

    公开(公告)日：2015-05-07

    申请号：US14530550

    申请日：2014-10-31

    Applicant: Cisco Technology, Inc.

    Inventor： Thomas James Edsall ,  Navindra Yadav ,  Francisco M. Matus ,  Kit Chiu Chu ,  Michael R. Smith ,  Sameer Merchant ,  Krishna Doddapaneni ,  Satyam Sinha

    IPC: H04L12/741

    CPC classification number: H04L45/74 ,  G06F9/45558 ,  G06F2009/45595 ,  H04L12/4633 ,  H04L45/66 ,  H04L49/10

    Abstract: Disclosed herein are methods of forwarding packets on a network, such as a leaf-spine network having leaf devices and spine devices. The methods may include receiving a packet at an ingress leaf device, and determining based, at least in part, on a header of the packet whether the packet is to be transmitted to a spine device. The methods may further include ascertaining based, at least in part, on a header of the packet whether to perform encapsulation on the packet, encapsulating the packet according to a result of the ascertaining, and then transmitting the packet to a spine device according to a result of the determining. Also disclosed herein are network apparatuses which include a processor and a memory, at least one of the processor or the memory being configured to perform some or all of the foregoing described methods.

    Abstract translation: 这里公开了在诸如具有叶装置和脊柱装置的叶脊网络的网络上转发分组的方法。 所述方法可以包括在入口叶设备处接收分组，以及至少部分地基于所述分组的报头确定所述分组是否要传送到脊柱设备。 所述方法可以进一步包括至少部分地基于分组的报头来确定是否对分组进行封装，根据确定的结果封装分组，然后根据所述分组将分组发送到脊柱设备 决定的结果。 本文还公开了包括处理器和存储器的网络设备，处理器或存储器中的至少一个被配置为执行前述所描述的方法中的一些或全部。

    Data Plane Learning of Bi-Directional Service Chains
    254.
    发明申请
    Data Plane Learning of Bi-Directional Service Chains 有权
    双向服务链的数据平面学习

    公开(公告)号：US20140334488A1

    公开(公告)日：2014-11-13

    申请号：US13891245

    申请日：2013-05-10

    Applicant: CISCO TECHNOLOGY, INC.

    Inventor： James Guichard ,  Paul Quinn ,  David Ward ,  Surendra Kumar ,  Navindra Yadav ,  Michael R. Smith ,  Nagaraj A. Bagepalli

    IPC: H04L12/851

    CPC classification number: H04L45/306 ,  H04L41/0893 ,  H04L47/2441 ,  H04L69/22

    Abstract: Techniques are provided to decouple service chain structure from the underlying network forwarding state and allow for data plane learning of service chain forwarding requirements and any association between services function state requirements and the forward and reverse forwarding paths for a service chain. In a network comprising a plurality of network nodes each configured to apply a service function to traffic that passes through the respective network node, a packet is received at a network node. When the network node determines that the service function it applies is stateful, it updates context information in a network service header of the packet to indicate that the service function applied at the network node is stateful and that traffic for a reverse path matching the classification criteria is to be returned to the network node.

    Abstract translation: 提供了技术来将服务链结构与底层网络转发状态分离，并允许服务链转发要求的数据平面学习和服务功能状态要求与服务链的前向和后向转发路径之间的任何关联。 在包括多个网络节点的网络中，每个网络节点被配置为对通过相应网络节点的业务应用服务功能，在网络节点处接收分组。 当网络节点确定其应用的服务功能是有状态时，它更新分组的网络服务报头中的上下文信息，以指示在网络节点处应用的服务功能是有状态的，并且用于与分类标准匹配的反向路径的业务 将被返回到网络节点。

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