You can upgrade (or downgrade) EPLDs using CLI commands on the Nexus 7000 Series device. Follow these guidelines when you upgrade or downgrade EPLDs:
*

You can execute an upgrade from the active supervisor module only. All the modules, including the active supervisor module, can be updated individually.

*

You can individually update each module whether it is online or offline as follows:
-

If you upgrade EPLD images on an online module, only the EPLD images with version

numbers that differ from the new EPLD images are upgraded.
-
If you upgrade EPLD images on an offline module, all of the EPLD images are upgraded.
*

On a system that has two supervisor modules, upgrade the EPLDs for the standby

supervisor and then switch the active supervisor to standby mode to upgrade its EPLDs.
On a system that has only one supervisor module, you can upgrade the active supervisor,

but this will disrupt its operations during the upgrade.
* If you interrupt an upgrade, you must upgrade the module that is being upgraded again.
* The upgrade process disrupts traffic on the targeted module.