Nagios Support Forum

I am currently looking for a plugin which can alert when the bandwidth of an interface is low in certain threshold.
Anyone know ?

Have you taken a look at solutions such as this:

http://www.vanstechelman.eu/linux/nagio ... age_plugin

I am going to monitor cisco switches/routers. so, i can not use vnstat command. any other plugin?

mr.t,

You should be able to gather the needed interface metrics via SNMP

for example:
http://exchange.nagios.org/directory/Pl ... ck/details

Regards,

-Yancy

I think with check_snmp_netif, i can get all interface statistic but i can not set the low threshold. Which option to set WARN when low threshold is met?

You can set the warning threshold with "-w" as stated in the plugin. There are 473 lines of documentation included within the plugin.

the "-w" checks for high threshold like if my interface is 100Mbps and the traffic is nearly 100Mbps (let say >80Mbps) then nagios will trigger WARNING. BUT my purpose is to monitor low threshold like if traffic is low to <10Mbps, then nagios trigger WARNING.