This object reports how many seconds have elapsed since this link-local-scope LSA was originated or last refreshed, capped at the standard OSPF MaxAge of 3600 seconds after which it is flushed if not refreshed. It matters the same way as its non-local counterpart cospfLsdbAge; a value climbing steadily toward 3600 without resetting indicates the originating router on that link has stopped refreshing it, likely because it is down or has lost that link. An admin seeing a link-local LSA's age approach 3600 without refreshing should expect it to be purged from the database soon and should investigate the originating router on that specific segment.