The exact physical nature of non-volatile storage is not
specified in this document. Hence, parameters may be saved in
NVRAM/EEPROM, local floppy or hard disk, or in some TFTP file
server or BOOTP server, etc. Suppose that this information is
in a file that is retrieved through TFTP. In that case, a
change made to a configuration parameter on the router would
need to be propagated back to the file server holding the
configuration file. Alternatively, the SNMP operation would
need to be directed to the file server, and then the change
somehow propagated to the router. The answer to this problem
does not seem obvious.
This also places more requirements on the host holding the
configuration information than just having an available TFTP
server, so much more that its probably unsafe for a vendor to
assume that any potential customer will have a suitable host
available.