Windows Agent overflows in net.if.in/out

[theepan]

I'm running Zabbix Agents on several Windows Servers (64bit, 2008+) and they all overflow at some point when querying net.if.in[nic] and net.if.out[nic]:

Fri May 8 12:31:56 EEST 2015 2005196881
Fri May 8 12:32:02 EEST 2015 2527914095
Fri May 8 12:32:07 EEST 2015 3053020449
Fri May 8 12:32:12 EEST 2015 3505404387
Fri May 8 12:32:17 EEST 2015 4004120839
Fri May 8 12:32:22 EEST 2015 249495793
Fri May 8 12:32:28 EEST 2015 787788455
Fri May 8 12:32:33 EEST 2015 1301655529
Fri May 8 12:32:38 EEST 2015 1813406369

All of the NICs are 1Gbit/s, so when saturated at max, the counter overflows very quickly. The grahps doesn't show anything above 400-500Mbit/s.

I thought using the 64bit zabbix agent would use 64bit counters, but it doesn't seem to be the case.

Since this issue has only been posted a few times (relating to older versions of Zabbix), I'm wondering what I am doing wrong/different. Any takes?

As a workaround to this issue, I created a new template which uses perf_counter to get the traffic numbers, but this has issues with special chars in the nic name (like #1, #2, [, ], /) when using low level discovery - for example # is converted to _ at some point.

[GeneBean]

I am having the same issue... did you get any help with this?

[GeneBean]

FYI, I filed a bug report at https://support.zabbix.com/browse/ZBXNEXT-3043

[theepan]

No, it was never solved. LLD for NICs on Windows is pretty much useless.

I ended up using perf_counter in UserParameter switch in Windows agent configuration file (on each server).

[sandis.neilands]

Hello,

FYI, just fixed the issue in Zabbix 3.0 (see ZBX-10063).

https://support.zabbix.com/browse/ZBX-10063

Sandis

[pictard]

No, it was never solved. LLD for NICs on Windows is pretty much useless.

I ended up using perf_counter in UserParameter switch in Windows agent configuration file (on each server).

Can you please share the perf_counter settings?

Thank you.


Later edit: found it - /usr/bin/zabbix_get -s hostname -p 10050 -k "perf_counter[\Network Interface(vmxnet3 Ethernet Adapter)\Bytes Received/Sec]"