发明名称 |
AUTO-TUNNELLING IN A HETEROGENOUS NETWORK |
摘要 |
The invention relates to auto-tunnelling in a heterogenous network, and more particularly in an IS-IS routing domain. The preferred embodiment provides a routing apparatus that enables network nodes which support incompatible network layer protocols, such as CLNP, IPv4 or IPv6 to be present in a single routing domain, e.g. IS-IS level-1 area or level-2 subdomain. The routing apparatus enables nodes automatically to tunnel one network layer protocol over another as required, provided that all of the nodes in the routing domain support IS-IS or Integrated IS-IS routing protocols. The routing apparatus does not necessarily try to route a data packet to its destination node but rather sends the data packet in a tunnel to a node in the path to the destination node, as appropriate. |
申请公布号 |
WO0245375(A2) |
申请公布日期 |
2002.06.06 |
申请号 |
WO2001EP14203 |
申请日期 |
2001.11.29 |
申请人 |
NORTEL NETWORKS LIMITED;CHRISTIAN, PHILIP;FEE, PAUL |
发明人 |
CHRISTIAN, PHILIP;FEE, PAUL |
分类号 |
H04L12/66;H04L12/46;H04L12/715;H04L12/781;H04L29/06 |
主分类号 |
H04L12/66 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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