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US09270601B2 Path resolution for hierarchical load distribution 有权
分层负载分配的路径解析

Path resolution for hierarchical load distribution
Abstract:
Network devices perform multiple stage path resolution. The path resolution may be ECMP resolution. Any particular stage of the multiple stage path resolution may be skipped under certain conditions. Further, the network device facilitate redistribution of traffic when a next hop goes down in a fast, efficient manner, and without reassigning traffic that was going to other unaffected next hops, using multiple stage ECMP resolution.
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