I have a large customer who is planning a CER install with approximately 5000 IP phones. The customer maintains a database of switchport to location mappings through a separate application because they do several port moves, adds and changes a week. The issue is that, obviously when a switchport is re-patched to another location, it will need to be remapped to a different ERL. Is there any way to automate this process (perhaps by importing a list of switchport to ERL mappings on a nightly basis or something along those lines)? The customer would like to automate this as much as possible to avoid having his staff having to update this manually in CER every time a port is repatched.

Thanks for any advice.