MPLS - Optimize Adaptive Teardown

You can make use of a new feedback mechanism from the TAG library that relies on RPD infrastructure to decide when all the routes using the old LSP instance have fully shifted to the new LSP instance after MBB switchover. When optimize-adaptive-teardown is configured, the optimize-hold-dead-delay statement, which delays the teardown of the old LSP instance after MBB switchover, is ignored.