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    Hierarchical label distribution for inter-area summarization of edge-device addresses
    1.
    发明授权
    Hierarchical label distribution for inter-area summarization of edge-device addresses 有权
    边缘设备地址的区域间聚合的分层标签分发

    公开(公告)号：US07483387B2

    公开(公告)日：2009-01-27

    申请号：US11135600

    申请日：2005-05-23

    申请人： James Guichard ,  Daniel C. Tappan ,  Jean-Philippe Vasseur ,  Simon Spraggs

    发明人： James Guichard ,  Daniel C. Tappan ,  Jean-Philippe Vasseur ,  Simon Spraggs

    IPC分类号： H04L12/26 ,  H04L12/28 ,  H04L12/56

    CPC分类号： H04L45/507 ,  H04L12/66 ,  H04L45/04

    摘要： A system and method are provided for separately distributing edge-device labels and routing information across routing areas of a computer network. Because the edge-device labels are distributed separately from network routing information, the process of distributing the edge-device labels does not preclude conventional edge-device address summarizations. Illustratively, a novel “label mapping” LSA is employed for distributing the edge-device labels across routing areas. The label-mapping LSA may be embodied as an area-scope OSPF opaque LSA (type 10) or an IS-IS LSP containing TLVs of area scope. Advantageously, the present invention is generally applicable whenever label values are allocated to edge devices in a multi-area computer network and data is “tunneled” through the network from one edge device to another.

    摘要翻译： 提供了一种用于在计算机网络的路由区域上分开分发边缘设备标签和路由信息的系统和方法。 由于边缘设备标签与网络路由信息分开分配，因此分发边缘设备标签的过程并不排除传统的边缘设备地址摘要。 说明性地，使用新颖的“标签映射”LSA来跨越路由区域分配边缘设备标签。 标签映射LSA可以实现为区域范围的OSPF不透明LSA（类型10）或包含区域范围的TLV的IS-IS LSP。 有利地，每当标签值被分配给多区域计算机网络中的边缘设备并且数据通过网络从一个边缘设备“隧道化”到另一个边缘设备时，本发明通常是适用的。