Runaway network bandwith alarms after upgrade

[Paul Theodoropoulos]

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.

--
Paul Theodoropoulos
www.anastrophe.com