Which of the following is NOT a valid way to steer traffic into a Flex-Algo segment-routing tunnel?
A Flex-Algo ID identifies an IGP flexible-algorithm topology and its associated Prefix Node-SIDs; it is not an SR-TE LSP TE constraint. SR-TE paths can instead include Flex-Algo Prefix Node-SIDs in their segment lists, while Flex-Algo-aware import policies can select matching IGP segment-routing tunnels for service next-hop resolution.
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