I recently upgraded a couple of servers from Debian Wheezy to Debian
Jessie. Since then, I'm getting frequent alarms from my network
bandwidth test.
The test:
check network network-bandwidth with interface eth0
if total upload > 3 GB in last 1 hours then alert
if total download > 5 GB in last 2 hours then alert
if total download > 10 GB in last day then alert
I wasn't getting alarms before the upgrade, so to try to be thorough, I
rebuilt monit from source. No change. This is 5.19.
The problem is that there's definitely not bandwidth anywhere near my
testing values taking place. With an uptime of 1 day, 14 hours, eth0 shows:
ifconfig
eth0 Link encap:Ethernet HWaddr 00:50:56:a7:3e:8e
inet addr:10.124.74.68 Bcast:10.124.74.127 Mask:255.255.255.192
inet6 addr: fe80::250:56ff:fea7:3e8e/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:27941718 errors:0 dropped:21 overruns:0 frame:0
TX packets:59281394 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:333591539 (318.1 MiB) TX bytes:4005580141 (3.7 GiB)
Thoughts? I upgraded a number of other servers in our farm, and have not
experienced this.