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Establishing and Protecting Label Switched Paths Across Topology-Transparent Zones
Establishing and Protecting Label Switched Paths Across Topology-Transparent Zones
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机译:跨拓扑透明区域建立和保护标签交换路径
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摘要
A label switched path (LSP) establishing method comprising receiving a first path message from a network node outside of a topology-transparent zone (TTZ) along a path for the LSP, computing a TTZ path through the TTZ from the network component to an egress TTZ edge node along the LSP, sending a second path message to a TTZ internal node along the TTZ path, receiving a first reservation (RESV) message from the TTZ internal node that comprises a label allocated for the egress TTZ edge node, and sending a second RESV message that comprises a label allocated for the network component and the label allocated for the egress TTZ edge node to the network node.
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