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Example: Configuring a Constrained-Path LSP for Which Junos OS Makes Most Forwarding Decisions and Considers Hop Constraints

 

On the ingress router, create a constrained-path LSP in which the Junos OS makes most of the forwarding decisions, taking into account the hop constraints listed in the path statements. The LSP is adaptive so that no bandwidth double-counting occurs on links shared by primary and secondary paths. To acquire the necessary link bandwidth, this LSP is allowed to preempt lower priority sessions. Finally, this path always keeps the secondary path in hot-standby state for quick failover.