looking for a RMA workflow for a faulty C9800 WLC in HA-SSO with DNA-Center. I found a chapter in the user guide, but it mentions APs, routers and switches, but WLAN Controllers are not supported.
"The Return Material Authorization (RMA) workflow lets you replace failed devices quickly. RMA provides a common workflow to replace routers, switches, and APs.
When using the RMA workflow with routers and switches, the software image, configuration, and license are restored from the failed device to the replacement device. For wireless APs, the replacement device is assigned to the same site, provisioned with primary wireless controller, RF profile, and AP group settings, and placed on the same floor map location in Cisco DNA Center as the failed AP. For Cisco Switch stacks (hardware stacking), you do not need to follow a separate procedure in Cisco DNA Center for member switch replacement, it is handled by the active switch. The member switch is replaced by the active switch by providing software image and configuration. Full stack replacement is handled by Cisco DNA Center."
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RMA supports replacement of all switches, routers, and Cisco SD-Access devices, except for the following:
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Devices with embedded wireless controllers.
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Cisco Wireless Controllers
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Chassis-based Nexus 7700 Series Switches
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Switch stacks (SVL stacking).
https://www.cisco.com/c/en/us/td/docs/cloud-systems-management/network-automation-and-management/dna-center/2-3-4/user_guide/b_cisco_dna_center_ug_2_3_4/b_cisco_dna_center_ug_2_3_4_chapter_011.html#id_114181
