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TECHNIQUE FOR DETERMINING WHETHER TO REESTABLISH FAST REROUTED PRIMARY TUNNELS BASED ON BACKUP TUNNEL PATH QUALITY FEEDBACK
TECHNIQUE FOR DETERMINING WHETHER TO REESTABLISH FAST REROUTED PRIMARY TUNNELS BASED ON BACKUP TUNNEL PATH QUALITY FEEDBACK
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机译:基于备用隧道路径质量反馈确定是否重新建立快速转弯主隧道的技术
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摘要
In one embodiment, a primary tunnel is established from a head-end node to a destination along a path including one or more protected network elements for which a fast reroute path is available to pass traffic around the one or more network elements in the event of their failure. A first path quality measures path quality prior to failure of the one or more protected network elements. A second path quality measures path quality subsequent to failure of the one or more protected network elements, while the fast reroute path is being used to pass traffic of the primary tunnel. A determination is made whether to reestablish the primary tunnel over a new path that does not include the one or more failed protected network elements, or to continue to utilize the path with the fast reroute path, in response to a difference between the first path quality and the second path quality.
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