Title: snmp_extended_info: new inventory function which discovers the model name and serial number
Level: 1
Component: inv
Compatible: compat
Version: 1.2.8b1
Date: 1452758542
Class: feature

The information about model name and serial number is discovered on all SNMP devices on which
the OIDs "1.3.6.1.2.1.47.1.1.1.1.4.1" or "1.3.6.1.2.1.47.1.1.1.1.4.1001" have value zero.
This means the device itself.
