checks/docsis_channels_downstream

   1 #!/usr/bin/python
   2 # -*- encoding: utf-8; py-indent-offset: 4 -*-
   3 # +------------------------------------------------------------------+
   4 # |             ____ _               _        __  __ _  __           |
   5 # |            / ___| |__   ___  ___| | __   |  \/  | |/ /           |
   6 # |           | |   | '_ \ / _ \/ __| |/ /   | |\/| | ' /            |
   7 # |           | |___| | | |  __/ (__|   <    | |  | | . \            |
   8 # |            \____|_| |_|\___|\___|_|\_\___|_|  |_|_|\_\           |
   9 # |                                                                  |
  10 # | Copyright Mathias Kettner 2014             mk@mathias-kettner.de |
  11 # +------------------------------------------------------------------+
  12 #
  13 # This file is part of Check_MK.
  14 # The official homepage is at http://mathias-kettner.de/check_mk.
  15 #
  16 # check_mk is free software;  you can redistribute it and/or modify it
  17 # under the  terms of the  GNU General Public License  as published by
  18 # the Free Software Foundation in version 2.  check_mk is  distributed
  19 # in the hope that it will be useful, but WITHOUT ANY WARRANTY;  with-
  20 # out even the implied warranty of  MERCHANTABILITY  or  FITNESS FOR A
  21 # PARTICULAR PURPOSE. See the  GNU General Public License for more de-
  22 # tails. You should have  received  a copy of the  GNU  General Public
  23 # License along with GNU Make; see the file  COPYING.  If  not,  write
  24 # to the Free Software Foundation, Inc., 51 Franklin St,  Fifth Floor,
  25 # Boston, MA 02110-1301 USA.
  26
  27 factory_settings["docsis_channels_downstream"] = {
  28     "power": (5.0, 1.0),
  29 }
  30
  31
  32 def inventory_docsis_channels_downstream(info):
  33     for line in info:
  34         if line[1] != '0':
  35             yield line[0], {}
  36
  37
  38 def check_docsis_channels_downstream(item, params, info):
  39     for channel_id, frequency, power in info:
  40         if channel_id == item:
  41             # Power
  42             warn, crit = params["power"]
  43             power_dbmv = float(int(power)) / 10
  44             infotext = "Power is %.1f dBmV" % power_dbmv
  45             levels = " (Levels Warn/Crit at %d dBmV/ %d dBmV)" % (warn, crit)
  46             state = 0
  47             if power_dbmv <= crit:
  48                 state = 2
  49                 infotext += levels
  50             elif power_dbmv <= warn:
  51                 state = 1
  52                 infotext += levels
  53             yield state, infotext, [('power', power_dbmv, warn, crit)]
  54
  55             # Check Frequency
  56             frequency_mhz = float(frequency) / 1000000
  57             infotext = "Frequency is %.1f MHz" % frequency_mhz
  58             perfdata = [("frequency", frequency_mhz, warn, crit)]
  59             state = 0
  60             if "frequency" in params:
  61                 warn, crit = params["frequency"]
  62                 levels = " (warn/crit at %d MHz/ %d MHz)" % (warn, crit)
  63                 if frequency_mhz >= crit:
  64                     state = 2
  65                     infotext += levels
  66                 elif frequency_mhz >= warn:
  67                     state = 1
  68                     infotext += levels
  69             # Change this to yield in case of future extension of the check
  70             yield state, infotext, perfdata
  71             return
  72
  73     yield 3, "Channel information not found in SNMP data"
  74
  75
  76 # This Check is a subcheck because there is also a upstream version possible
  77 check_info["docsis_channels_downstream"] = {
  78     "check_function": check_docsis_channels_downstream,
  79     "inventory_function": inventory_docsis_channels_downstream,
  80     "service_description": "Downstream Channel %s",
  81     "has_perfdata": True,
  82     "snmp_scan_function": docsis_scan_function,
  83     "snmp_info": (
  84         ".1.3.6.1.2.1.10.127.1.1.1.1",
  85         [
  86             1,  # docsIfDownChannelId
  87             2,  # docsIfDownChannelFrequency
  88             6,  # docsIfDownChannelPower (1/10 dBmV)
  89         ]),
  90     "group": "docsis_channels_downstream",
  91     "default_levels_variable": "docsis_channels_downstream",
  92     "includes": ["docsis.include"],
  93 }
  94
  95 # Information for future extensions of the check:
  96 # docsIfDownChannelId             1.3.6.1.2.1.10.127.1.1.1.1.1
  97 # docsIfDownChannelFrequency      1.3.6.1.2.1.10.127.1.1.1.1.2
  98 # docsIfDownChannelWidth          1.3.6.1.2.1.10.127.1.1.1.1.3
  99 # docsIfDownChannelModulation     1.3.6.1.2.1.10.127.1.1.1.1.4
 100 # docsIfDownChannelInterleave     1.3.6.1.2.1.10.127.1.1.1.1.5
 101 # docsIfDownChannelPower          1.3.6.1.2.1.10.127.1.1.1.1.6
 102 # docsIfDownChannelAnnex          1.3.6.1.2.1.10.127.1.1.1.1.7