SNMP Sysuptime Error over 497 days

[teemo]

Dear all,
Currently, Zabbix in my site have problem with sysuptime. So I receive message: Problem: b1_sw_a1 has been restarted. But device don.t restart or shutdown.

I already google and known problem on SNMP OID but I don't known change SNMP OID on templates.

SNMP OID currentle is: 1.3.6.1.2.1.1.3.0

Can you help me fix this problem ?

Thanks and regards






Last value: 00:00:14 (02:57:28)

[Atsushi]

sysUpTime is a 32bit counter and will overflow after 496 days.
Zabbix only determines if this value is increasing in time series. If the network device counter overflows and starts counting up from 0, it will be smaller than the value checked before, so you can only determine that the network device is the same as when it was restarted. If it is over 497 days compared to the previous value, please ignore it.

[teemo]

In my site, over than 500 devices. Everyday I get message devices has been restarted. So everybody can help me fix this problem ?

[Atsushi]

If you add a condition to the trigger conditional expression that ignores the previous value that is likely to overflow in the 32-bit counter, it may be avoided.

[teemo]

In expession of trigger before
{Fixed Generic SNMPv2:system.uptime.last()}<10m

and I try add
{Fixed Generic SNMPv2:system.uptime.max(600)}>4294997

Can you check for me that is correct ?