title: Definition of SNMP Gauge32 vs Counter32
body: <p>Can someone point me to a good definition of Gauge32 vs Counter32?  I understand that Counter32 can wrap, but Gauge32 can't.  </p>
  
  <p>I'm trying to understand their semantics.  For example, I've heard you should take the difference between two Counter32 readings to get a value/second.  Is there something like that for a Gauge32 value?</p>
  
  <p>Thanks for any insight.</p>