Wlan traffic counter shows crazy numbers

[Chiverel]

Hi,

I'm monitoring Ruckus R510 unleashed device with 200.6 fw (the same appears on 200.8 and others see this too example).

Traffic counters are received as counter64 and returns pentabytes per minute.

----------------------- New Test -----------------------
10:23:01 (10 ms) : Device: 192.168.100.2
10:23:01 (16 ms) : SNMP V2c
10:23:01 (20 ms) : Custom OID .1.3.6.1.4.1.25053.1.15.1.1.1.15.9.0
10:23:01 (31 ms) : SNMP Datatype: ASN_APP_COUNTER64
10:23:01 (36 ms) : -------
10:23:01 (40 ms) : Value: 7939777543836532738
10:23:01 (46 ms) : Done

----------------------- New Test -----------------------
10:23:30 (9 ms) : Device: 192.168.100.2
10:23:30 (12 ms) : SNMP V2c
10:23:30 (17 ms) : Custom OID .1.3.6.1.4.1.25053.1.15.1.1.1.15.9.0
10:23:30 (30 ms) : SNMP Datatype: ASN_APP_COUNTER64
10:23:30 (35 ms) : -------
10:23:30 (39 ms) : Value: 7942009135829090306

Thus zabbix obtains the same data, graphs look similar to what is shown on the device management page, but scale is completely screwed. Here curved lines are taken from the device, spike line is taken from zabbix


Zabbix peak arount 8:00 is 100+ Pb, ruckus web page reported max value of 127.58Mb.

Item implementation:
- snmp oid: .1.3.6.1.4.1.25053.1.15.1.1.1.15.9.0
- type: numeric (unsigned)
- units: B
- preprocessing: simple change
- update interval: 30s (the same period as snmp value refresh rate on the device)


Do you have any thoughts how to fix that? Thaks!