Some items are only valid if warm upgrade is supported. loadUpgradeSoftware: the unit/card should request a load of the upgrade software from the previously downloaded on to the system. If an upgrade version of software is not available or the server(s) is unable to respond to the load request the card will set the cardSwStaus to upgradeloadFailed (warm upgrade only - this is ignored if warm upgrade is not supported). upgradeNow: the unit/card should upgrade to the already loaded upgrade software if warm upgrade is supported or reboot and load the upgrade software if warm upgrade is not supported. If the upgrade software has not been loaded or there is no grade software load available, the unit/card will set the cardSwStatus to upgradeFailed. When this value is set, the zhoneSysCardSwUpgradeEnable field is set to true in the genSystem mib associated with this card. upgradeOnReset: the unit/card will upgrade to the already loaded software the next time it is initialized. If the upgrade software is not loaded the card will set the cardSwStatus to upgradeFailed following reset. reloadCurrVers: the will re-initialize and load the previous version of code prior to the upgrade (which is either the 'specific' version or default version of software depending upon what has been provisioned) See the genSystem mib for details. When this value is set, the zhoneSysCardSwUpgradeEnable field is set to false.