Can public network routes be iterated to tunnels on S series switches

Q: Can public network routes be iterated to tunnels?
A: For S series switches, by default, an unlabeled public network route can only be iterated to the outbound interface and next hop, but not a tunnel. If the route recursive-lookup tunnel command is executed, an unlabeled public network route can inherit the tunnel ID of an IGP or static route, allowing packets to be forwarded through MPLS routes.

The route recursive-lookup tunnel command enables the switch to iterate unlabeled public network routes to tunnels. This command is valid only to unlabeled public network routes that require tunnel iteration. To control tunnel iteration more precisely, you can filter unlabeled public network routes by specifying an optional IP prefix list. The undo route recursive-lookup tunnel command disables tunnel iteration.

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