python脚本监控伺服器/交换机网卡状态

脚本内容如下：

#cat check_snmp_int.py

#!/usr/bin/python

#_*_coding: utf-8_*_

'''
Create date: 2012-10-29
Last update: 2012-10-29
Version: 1.0
Description: Monitor interface status
Author: Victor
QQ:1409175531
'''

import sys
import netsnmp

def help():
  print '''Usage:
sys.argv[0]   '''

try:
  session = netsnmp.Session(Version=2, Community=sys.argv[1], DestHost=sys.argv[2])
except IndexError:
  help()
  sys.exit()

oid01 = netsnmp.Varbind('ifOperStatus')
oid02 = netsnmp.Varbind('ifDescr')
oidlist01 = netsnmp.VarList(oid01)
oidlist02 = netsnmp.VarList(oid02)
rl01 = session.walk(oidlist01)
rl02 = session.walk(oidlist02)

'''1=>UP,2=>DOWN,3=>TESTING,4=>UNKNOWN,5=>DORMANT,6=>NotPresent,7=>lowerLayerDown'''

try:

  status = dict(zip(rl02,rl01))[sys.argv[3]]

  if status == '1':
    print '%s is UP ' % (sys.argv[3])
    sys.exit(0)
  elif status == '2':
    print '%s is DOWN' % (sys.argv[3])
    sys.exit(2)
  elif status == '3':
    print '%s is TESTING' % (sys.argv[3])
    sys.exit(1)
  elif status == '4':
    print '%s is UNKNOWN' % (sys.argv[3])
    sys.exit(1)
  elif status == '5':
    print '%s is DORMANT' % (sys.argv[3])
    sys.exit(1)
  elif status == '6':
    print '%s is NotPresent' % (sys.argv[3])
    sys.exit(1)
  elif status == '7':
    print '%s is lowerLayerDown' % (sys.argv[3])
    sys.exit(1)
  else:
    print 'UNKNOWN'
    sys.exit(3)

except:
  sys.exit()

命令行执行脚本如下：

#python check_snmp_int.py public localhost etho

eth0 is UP    //脚本执行完后的输出内容；

将check_snmp_int.py放在/usr/local/nagios/libexec目录，给执行权限。

commands.cfg配置如下：

    define command{

        command_name check_snmp_int

        command_line $USER1$/check_snmp_int.py  $ARG1$ $HOSTADDRESS$ $ARG2$

    }

host.cfg配置如下：

    define service{

         use                               service

         host_name                   test

         service_description     eth0

         check_command         check_snmp_int!public!eth0   // 如果监控的是交换机端口，这里需要写全称，如GigabitEthernet0/20

       }

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