Fabric-based Firmware Download
        Preparation
    
    
        
        The firmware download prepare add and delete
            command accept a new --fabric <fabric name> parameter. This parameter
            automatically generates a group-based prepared list for the entire fabric or delete any
            existing prepared list for the entire fabric.
        You can review and further modify the auto-generated prepared list using the group-based
            prepare commands if required.
        Clos Topology (3-Stage and 5-Stage)
            
            The following rules for Clos topologies generate a fabric-based prepared list: 
            
                - The first group contains all non-MCT leaf devices and the MCT peer with the
                    lower IP address from all MCT leaf and border-leaf devices. 
- The second group contains the MCT peer with the higher IP address from all MCT
                    leaf and border-leaf devices.
- The subsequent groups contains a single spine per group starting from the lowest
                    to highest IP address of the spines.
The remaining groups contain a single super-spine per group starting from the lowest
                to highest IP address of the super-spines.
        
        Small Data Center Topology
                (Centralized Rack and Rack Ring)
            
            The following rules for small data center topologies generate a fabric-based prepared
                list:
            
                - Due to potential loss of connectivity between racks (rack ring topology), all
                    the devices are prepared for a serial upgrade (one device per group).
- The order is rack-by-rack, with the lower IP address peer followed by the higher
                    IP address peer.