The value of tmnxChassisPwrMgmtMode specifies how the system behaves during power contention. none (0) - When set to 'none (0)' the node will bring up as much provisioned equipment in order of priority as possible without exceeding capacity of the equipped or assigned PEQs. In this mode no gradual shutdown of active cards is enforced. Note: No spare capacity is reserved. Any failure may result in brownouts or card failures. basic (1) - When set to 'basic (1)', the node will bring up, in order of priority, as much of the provisioned equipment as possible using the N+1 algorithm. This means enough capacity will be held in reserve to ensure zero impact should the highest rated PEQ fail or be removed. However, subsequent failures may result in brownouts if the system can't shutdown low priority cards in time when the secondary failure/removal occurs. advanced (2) - When set to 'advanced (2)', the system will maintain a spare PEQ as long as possible to make it immune to the possibility of power brownouts. It does this by shutting down low priority cards to restore N+1 when N+1 is no longer in effect.