This field holds the Relative Name (RN) of this historical stats record — the local, final segment of its DN that distinguishes one archived snapshot from the other retained snapshots under the same interface's history container. For this FCoE interface stats-history table, the RN typically encodes the record's position or id within the rolling history (something like 'history-330'), which is what lets a script iterate through past samples for one interface without parsing the full DN each time. For example, two records with RNs like 'history-41' and 'history-42' would represent consecutive archived snapshots for the same interface, taken one collection interval apart.