This tutorial introduces the Structure of Management Information (SMI). The SMI is a language that defines the syntax for management information that is stored in SNMP MIBs. After introducing SMI versions 1 and 2, this podcast discusses the syntax to define scalar objects (naming, instances, definition) and table objects (definition). Textual conventions and notification types are introduced too. Note that this tutorial has previously been available as REAL media presentations, and is now converted to podcast format. The contents was created a few years ago, and some parts need to be updated. Completely updated podcasts on this topic are planned, however, for the second half of 2008.