How do we change the numeric form of Private MIB OIDs into human readable form
MIB Browsers can help translate among different forms, such as
http://www.mg-soft.si/mgMibBrowserPE.html
There are also free command line tools, such as
http://www.net-snmp.org/tutorial/tutorial-5/commands/snmptranslate.html
But human readable form is only useful for human. Network devices still talk in numeric form only.