ifTable.ifEntry.ifType
  - value is an integer representing the type of interface
  - index_val[0] is an integer value known as an ifIndex

ifTable.ifEntry.ifAdminStatus
  - value is an integer that represents an interface's administrative state 
   (1=up,2=down,3=testing)
  - index_val[0] is an integer value known as an ifIndex
  
ifTable.ifEntry.ifInOctets
  - value is the number of bytes that have passed through the interface since
    being turned up.
  - index_val[0] is an integer value known as an ifIndex