This is the on/off switch for the entire automatic RMON file-push mechanism on this device. If this is set to disable(1), none of the transfer configuration, server, directory, interval, credentials, matters, since no push attempts will occur at all, which is the first thing an admin should check when historical RMON files simply never arrive at the archive server despite everything else looking correctly configured. For example, an admin restoring a saved configuration to a replacement switch should verify this reads enable(2), since a config restore that leaves it at the disable(1) default would silently stop RMON archiving on the new unit.