check_tcptraffic
check_tcptraffic is a Nagios plugin to monitor the amount of TCP traffic
Usage
check_tcptraffic --critical=crit --warning=warn --interface=iface --speed=speed
[--verbose] [--reset] [--help]
Required arguments
--critical,c crit critical
--warning,w warn warning
--interface,i iface network interface
--speeed,s speed (in Mbit/s)
Options
--help,-h,-? this help message
--reset,r initialize counter
--version,V print version and exit
--verbose,v verbose
check_tcptraffic uses the /proc/net/dev Linux entry to compute the
amount of transferred bytes from the last plugin execution (temporary
data is stored in the /tmp/check_tcptraffic-iface file)
32 bit kernels
Since /proc/net/dev uses 32bit counters overflows are a problem
(especially on a fast interface)
| Speed | Maximum safe check period |
|---|---|
| 10Mbit/s | 55' |
| 100Mbit/s | 5'8" |
| 1GBit/s | 32" |