What about this rewrite:
3.5.6 Analysis of Current Management Protocol Usage
In the past, much work has been spent on the specification and
implementation of the current Internet network management
architecture. However, operators reported that they use only a
subset of this architecture. A better understanding of what is
used for which purpose (and what is not used) is highly desirable.
This issue can be addressed by automated network management
protocol traffic measurements and subsequent analysis in close
cooperation with operators.