Downgrading Cisco NX-OS Release on an MDS 9500 Series Switch
During any firmware upgrade, use the console connection. Be aware that if you are downgrading through the management interface, you must have a working connection to both supervisors, because this process causes a switchover and the current standby supervisor will be active after the downgrade. In this section we discuss firmware upgrade steps for an MDS director switch with dual supervisor modules. For MDS switches with only one supervisor module, Steps 7 and 8 will not be executed.
You should first read the Release Notes and follow the steps for specific NX-OS downgrade instructions. Use the install all command to downgrade the switch and handle configuration conversions. When downgrading ...
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