check_dlink_dgs is a Nagios / Icinga plugin for monitoring D-Link DGS managed switches.
The plugin checks for disconnected ports and also gathers package counter metrics which can be exposed as performance data. The switch is connected via SNMP (version 1 or 2).
The plugin requires Python 2.6 or newer - it also requires the pysnmp module.
By default, the script checks particular ports for connectivity, it is also possible to auto-detect available ports and check all those ports. The script also supports performance data for data visualization. The following additional parameters can adjust this behavior:
| Parameter | Description |
|---|---|
-d / --debug |
enable debugging outputs (default: no) |
-h / --help |
shows help and quits |
-P / --enable-perfdata |
enables performance data (default: no) |
-H / --host |
defines the switch hostname or IP |
-c / --snmp-community |
defines the SNMP community (default: public) |
-V / --snmp-verions |
defines the SNMP version (default: 2c) |
-p / --snmp-port |
defines the SNMP port (default: 161) |
-P / --ports |
defines one or more ports for monitoring |
-a / --all-ports |
monitors all ports (default: no) |
-A / --active-ports |
monitors all active ports (default: no) |
--version |
prints programm version and quits |
The following command checks a particular port for connectivity:
$ ./check_dlink_dgs.py -H 192.168.178.1 -P 1
OK: All specified ports connected |
Checking particular ports by ranges, customized SNMP community:
$ ./check_dlink_dgs.py -H 192.168.178.1 -c giertz -P 1,3 -P 4-5
OK: All specified ports connected |
Gathering performance data of a dedicated port:
$ ./check_dlink_dgs.py -H 192.168.178.1 -P 26 -e
OK: All specified ports connected | 'inOct ESXi/10G'=577123318111 'outOct ESXi/10G'=1269140449325
Checking all available ports:
$ ./check_dlink_dgs.py -H 192.168.178.1 -a
CRITICAL: Disconnected port(s) 2,7,14,15,16,17,19,20,21,22,23,28 |
Checking all connected ports:
$ ./check_dlink_dgs.py -H 192.168.178.1 -A
OK: All specified ports connected |
This repository contains a NRPE (check_dlink_dgs.cfg) and Icinga2 (check_dlink_dgs-icinga2.conf) configuration example - take a look!