# SNMP monitoring of ethernet repeaters
#
# Returns 1 on SNMP errors, 2 for other errors (usually failure to
# communicate with device).
#
# Phil Gregory
#
# rptr.monitor, v. 0.9, 2000-02-28
#
# Initially derived from the hpnp.monitor code.
#
#
#    Copyright (C) 2000, Phil Gregory
#
#    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.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with this program; if not, write to the Free Software
#    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
#
# Still TODO:
#
#   - Be more discerning about errors.  Currently, everything not
#     "operational" is considered an error.  Depending on how people use
#     this, the monitor may only want to report "malfunctioning" groups
#     and ports.
#
#   - The program should try to detect cases where the host exists, but
#     does not support the correct MIB.  (In this case, the repeater MIB.)
#
#   - Checking the ports to see if they're autopartitioned might be
#     useful.
#
#   - There may be a better way to work through the ports.  In particular,
#     there should only be entries in rptrGroupTable for existing groups.
#     Querying only existing groups is much better on the bandwidth than
#     trying all possible groups and ignoring the errors (which is how the
#     script currently works).  It also appears possible for ports to be
#     numbered higher than the maximum number of ports--e.g. the 3Com SSII
#     switch 1000 where the 13 ports are numbered 1-12 and 14. (I need to
#     look at UCD's snmptable and see how they get table dimensions.)