Specifications

Restoring configurations from different firmware revisions carries the same risk. Should you need
to downgrade your firmware to an earlier version, it is recommended that you use one of the
following two procedures:
Downgrade the firmware on a network device using the Firmware Upgrade Wizard. Do
not proceed to the Reset Devices portion of the wizard, instead select [Finish]. Restore an
archived configuration that was previously created with the firmware image being
downloaded. This will reset the device.
or
•
Downgrade the firmware on a network device using the Firmware Upgrade Wizard.
Complete the downgrade using the wizard Reset Devices screens. Clear NVRAM on the
device and reconfigure the network configuration parameters of the device using the local
console.
•
In addition, when downgrading firmware on SNMPv3 devices, it is possible that Inventory
Manager will lose contact with the device. SNMPv3 adds a level of difficulty to downgrade
operations, because counters and timers related to security features of SNMPv3 may get out of
sync. Following the downgrade, you will need to restart Inventory Manager to re−establish
contact with the device.
CAUTION: Prior to upgrading firmware on a device, it is recommended that you archive the latest
configuration for the device being upgraded. This will aid you in downgrading should you
choose to do so.
Performing an Upgrade
Use these steps to perform a firmware upgrade. These instructions are for performing an immediate upgrade;
to schedule an upgrade for a future time, use the steps in Scheduling an Upgrade. Be sure to perform the steps
in Preparing to Upgrade before beginning the upgrade operation.
NOTE: During the device reset part of the wizard, Inventory Manager learns the current firmware version
installed on the device. Inventory Manager uses this information to determine whether the
firmware version installed on the device matches the firmware reference image set for the device's
binary family. (This information is displayed in the All Devices Details View tab.) If the version
number is not available from an image file, you can manually set the version number in the
Firmware Image General Tab.
Select Tools > Wizards > Firmware Upgrade Wizard from the menu bar or click on the
toolbar. The Firmware Upgrade Wizard opens.
1.
Select the devices to upgrade:
Expand the folders under the left−panel tree and select the single device or device group, or
multiple devices or device groups (using the Control or Shift keys). Click Add. If there were
devices that failed the previous upgrade an Add Failed button is displayed. Use the Add
Failed button to add those devices to the upgrade.
NOTE: If you have multiple tree nodes representing the same device but with varying
SNMP contexts, keep in mind that not all device contexts will provide access to
the MIBs required to perform the operation. When selecting your devices, make
sure that any device with SNMP context has access to the required MIBs, or
a.
2.
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Performing an Upgrade 133