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Optimization of distributed tunnel rerouting in a computer network with path computation at an intermediate node
Optimization of distributed tunnel rerouting in a computer network with path computation at an intermediate node
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机译:通过中间节点的路径计算优化计算机网络中的分布式隧道重路由
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摘要
In one embodiment, a set of tunnels is determined that traverse a particular link connected to an intermediate node in a network. The intermediate node computes, in a coordinated path computation, paths for tunnels of the set of tunnels that do not include the particular link. The coordinated path computation considers each of the tunnels of the set of tunnels. The intermediate node selects one or more tunnels of the set of tunnels for preemption. The one or more tunnels are selected as tunnels that are reroutable by respective head-end nodes of the one or more other tunnels. Notifications are sent to one or more other intermediate nodes that inform the one or more other intermediate nodes of the one or more tunnels selected for preemption.
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