This object reports and controls the operational state of a Level 2 summary address entry, and notes that any change causing the content of originated Level 2 LSPs to change must trigger new LSPs to be generated and sent as soon as the protocol permits. Administrators toggle this to activate or deactivate a specific summarization entry without deleting its configuration entirely. For example, an engineer temporarily sets csIsisL2SummAddrOperState off for one summary address while validating a more specific route is correctly reachable, then turns it back on once testing confirms the summary is safe to re-enable.