Siemens SM2 monitoring system User Manual

U3585-J-Z125-8-76

35

SM2 monitoring programs

The BCAM-CONNECTION monitoring program supplies monitored data for connections
that are combined in connection sets. It provides monitored variables for DCAM applica-
tions (with NEA names) and socket applications (with port numbers) only. Information is
recorded on INWAIT, REACT, INPROC and OUTPROC times.

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The INWAIT time is defined as the time between the display of a BCAM message at an
application and the retrieval of this message by the application.

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The REACT time is defined as the time between an application’s send call and the
receive call which immediately precedes it. If the send and receive calls are logically
linked, then the REACT time can be seen as the time it takes for the application to
respond. In dialog-oriented applications, each input is normally followed by the appro-
priate output.

–

The INPROC time is defined as the time between the arrival of a message at BCAM and
the retrieval of this message by the application. The INPROC time includes the INWAIT
time.

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The OUTPROC time is defined as the time between a send call and the transfer of the
last byte of a message to the network. Data transfer to the network may also be delayed
by the receiving party.

In addition, statistics are recorded on incoming and outgoing data (jobs, the volume of data,
packets, etc.).

The SM2 administrator can use the SET-BCAM-CONNECTION-PARAMETER and ADD-
BCAM-CONNECTION-SET statements to define global and connection-specific monitoring
parameters respectively.

The SET-BCAM-CONNECTION-PARAMETER statement must be entered before the first
ADD-BCAM-CONNECTION-SET statement.

Time statistics are recorded bucket-specifically. The BUCKET parameters consist of a list
of the maximum INWAIT, REACT, INPROC and OUTPROC times, arranged in order of
magnitude. The ranges defined in these lists apply to all connection sets defined in the
ADD-BCAM-CONNECTION-SET statement.

<integer 1 .. 99999> is an integer which defines a limit value. The number of limit values in
this list implicitly determines the number of ranges. This may vary from list to list, but four
limit values is the maximum.