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1. Save any special interface configs: curl -ks -H "Authorization: Bearer $JWT_AUTH_TOKEN" ${CNAASURL}/api/v1.0/device/currentswitch/interfaces > migrate-received.json
2. Remove device from NMS (use factory default if the switch is still online to clear the config)
3. ZTP new switch (with same name)
4. Re-apply any interface configs, download migrate-interfaces.py ( compatible with nms v1.x to convert output json to input json )
   
   1. python3 migrate-interfaces.py < migrate-received.json > migrate-send.json
   2. curl ks -H "Authorization: Bearer $JWT_AUTH_TOKEN" ${CNAASURL}/api/v1.0/device/newswitch/interfaces -X PUT -d migrate-send.json -H "Content-Type: application/json"
5. Sync config to switch
6. Update serial etc in NI?
7. Update monitoring etc if management IP changed

Replace access switch that is part of MLAG pair:

1. Same as access, save interface configs and remove device.
2. To be able to ZTP new device: set downlink on connected dist to redundant_link: false and sync it, shut down MLAG peer interfaces on the working switch, then do ZTP of new switch with same name as replaced switch
3. Import interfaces from step 1 (same as access switch)
4. Manually add back linknets between existing MLAG switch and new MLAG switch via API POST to /linknets with JSON payload: {"device_a": "a3", "device_b": "a4", "device_a_port": "Ethernet25", "device_b_port": "Ethernet51"}
5. Sync the working MLAG peer switch, it should re-enable MLAG peer interfaces that was shutdown previously
6. Sync the newly provisioned MLAG switch, it should add the mlag configuration
7. Remove redundant_link: false from connected dist switch again (from step 2)
8. Sync uplink dist switches

Replace dist switch (in core/dist configuration) via ZTP:

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