NAME
    SubNetIO - a FlowScan module for reporting on campus traffic I/O
    by subnet

SYNOPSIS
       $ flowscan SubNetIO

    or in flowscan.cf:

       ReportClasses SubNetIO

DESCRIPTION
    SubNetIO is a flowscan report for reporting on flows of traffic
    in and out of specific subnets within a site or campus. It is
    implemented as a class derived from CampusIO, so you run either
    CampusIO or SubNetIO, not both, since SubNetIO inherits all the
    functionality of CampusIO. For instance, in your flowscan.cf:

       ReportClasses SubNetIO

CONFIGURATION
    `SubNetIO''s configuration file is SubNetIO.cf. This
    configuration file is located in the directory in which the
    flowscan script resides.

    The SubNetIO configuration directives include:

    SubnetFiles
        This directive is required. It is a a comma-seperated list
        of files containing the definitions of the subnets on which
        you'd like to report. E.g.:

           # SubnetFiles our_subnets.boulder
           SubnetFiles bin/our_subnets.boulder

    OutputDir
        This directive is required. It is the directory in which RRD
        files will be written. E.g.:

           # OutputDir /var/local/flows/graphs
           OutputDir graphs

    Verbose
        This directive is optional. If non-zero, it makes `flowscan'
        more verbose with respect to messages and warnings.
        Currently the values `1' and `2' are understood, the higher
        value causing more messages to be produced. E.g.:

           # Verbose (OPTIONAL, non-zero = true)
           Verbose 1

    TopN
        This directive is optional. It's use requires the
        `HTML::Table' perl module. `TopN' is the number of entries
        to show in the tables that will be generated in HTML top
        reports. E.g.:

           # TopN (OPTIONAL)
           TopN 10

        If you'd prefer to see hostnames rather than IP addresses in
        your top reports, use the ip2hostname script. E.g.:

           $ ip2hostname -I *.*.*.*_*.html

    ReportPrefixFormat
        This directive is optional. It is used to specify the file
        name prefix for the HTML "Top Talkers" reports. You should
        use strftime(3) format specifiers in the value, and it may
        also specify sub-directories. If not set, the prefix
        defaults to the null string, which means that, every five
        minutes, subsequent reports will overwrite the previous.
        E.g.:

           # Preserve one day of HTML reports using the time of day as the dir name:
           ReportPrefixFormat html/SubNetIO/%H:%M/

        or:

           # Preserve one month by using the day of month in the dir name (like sar(1)):
           ReportPrefixFormat html/SubNetIO/%d/%H:%M_

BUGS
AUTHOR
    Dave Plonka <plonka@doit.wisc.edu>

    Copyright (C) 1999-2001 Dave Plonka. This program is free
    software; you can redistribute it and/or modify it under the
    terms of the GNU General Public License as published by the Free
    Software Foundation; either version 2 of the License, or (at
    your option) any later version.

VERSION
    The version number is the module file RCS revision number
    ($Revision: 1.27 $) with the minor number printed right
    justified with leading zeroes to 3 decimal places. For instance,
    RCS revision 1.1 would yield a package version number of 1.001.

    This is so that revision 1.10 (which is version 1.010), for
    example, will test greater than revision 1.2 (which is version
    1.002) when you want to require a minimum version of this
    module.

