发明名称 |
Hierarchical label distribution for inter-area summarization of edge-device addresses |
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.
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申请公布号 |
US2006262735(A1) |
申请公布日期 |
2006.11.23 |
申请号 |
US20050135600 |
申请日期 |
2005.05.23 |
申请人 |
GUICHARD JAMES;TAPPAN DANIEL C;VASSEUR JEAN-PHILIPPE;SPRAGGS SIMON |
发明人 |
GUICHARD JAMES;TAPPAN DANIEL C.;VASSEUR JEAN-PHILIPPE;SPRAGGS SIMON |
分类号 |
H04L12/28 |
主分类号 |
H04L12/28 |
代理机构 |
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主权项 |
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地址 |
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