Perform the following pre-upgrade checks.

1. It is the user responsibility to keep the valid checksum file before import.

2. Verify that the device supports the new software.

3. Verify that there is sufficient space on the NE compact flash drives for the new software image files and a backup of the current image.

4. For NEs that have redundant CPMs, use a CLI to verify that the boot environments are synchronized.

Configure a software upgrade policy; see To configure a software upgrade policy .

Import the required device software image to the NFM-P; see To import device software files to the NFM-P .

Back up the device configuration.

Schedule an upgrade of one or more NEs, as required; see To schedule an NE software upgrade for node upgrades and To schedule an extension shelf software upgrade for extension shelf upgrades.

Turn up, shut down, or delete a scheduled upgrade task; see To manage scheduled software upgrades .

Perform an on-demand upgrade or an ISSU, as required.

See To perform an ISSU or on-demand software upgrade for 7210 SAS, 7250 IXR, 7450 ESS, 7705 SAR, 7750 SR, or 7950 XRS upgrade information.

See To upgrade 7705 SAR-Hm radio card firmware for 7705 SAR-Hm upgrade information.

See To perform an OmniSwitch on-demand software upgrade or ISSU and To perform an OS 6400, OS 6850E, or OS 6855 ISSU for OmniSwitch upgrade information.

See To perform an extension shelf on-demand software upgrade for extension shelf upgrade information.

Monitor the upgrade progress; see To monitor the status of a software upgrade .

Activate a software image on an NE, if required; see To activate a device software image .

After the upgrade, verify the boot environment synchronization for NEs that have dual CPMs.

For an OS 6250SME or OS 6450, perform a software license upgrade to enable the Ethernet Metro functions; see To upgrade OS 6250SME and OS 6450 NE software licenses for an Ethernet (Metro) role .

Certify or synchronize the OmniSwitch software on an NE; see To certify or synchronize OmniSwitch software .

If required, reboot the NE.

Resynchronize the NE.

As required, perform upgrade verification tests.

Remove outdated software images from the device and from the NFM-P.

NOTE:: Ensure that you regularly remove from the NFM-P device software images that are no longer required, for example, by deleting the images or by exporting to a remote file system. An accumulation of device software images can greatly increase the length of an NFM-P database operation such as a backup, restore, or reinstantiation.