Configure max-entries number option at [edit protocols mpls label-history] hierarchy level to display label allocation, release history, and associated information such as RSVP session that helps debug label related error such as stale label route and deleted label route. You can configure the limit for the maximum number of MPLS history entry per label . By default, label history is off and there is no maximum limit for the number of entries for each label. The show mpls label history label-value command displays the label history for a given label value and the show mpls label history label-range start-label end-label command displays the history of labels between the given label range.
The clear mpls label history command clears the label history details.
