B Channels monitoring
$ ./check_cisco_b-channels.pl -h
usage:Â ./check_cisco_b-channels.pl [-h] -H -C -w -c
Version: 0.1
Released on: 2010/06/22
Nagios plugin to monitor PRI/BRI B-Channel usage on Cisco gateways
Usage
[-h]Â Â : Print this message
[-H] Â : IP Address or Hostname
[-C]  : SNMP Community String (default = "public")
[-w] Â : Below this number, raise a Warning status
[-c] Â : Below this number, raise a Critical status
[-d]Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â : enable debug output./check_cisco_b-channels.pl -H 192.168.0.1 -C public -w 10 -c 5
B-Channels: (2 in use / 21 free / 23 in total) : OK | total=23 used=2
