[c-nsp] Cisco ONS15454 MSPP controller upgrades

[Curtis Piehler]

Is there any good documentation online of upgrading the software on the
ONS15454 platform?  (MSPP, not MSTP).  I know this platform is way end of
life but unfortunately optical MUX's will just run until they are decom'd
usually.  The current MSPPs are managed via a CTC over a ring topology.

Thanks