A strange problem : Status Down but host is alive

[atem]

I have some device in my network that shows up as status: "Down" but host is alive (Other Device is normal). I can ping this device from the cacti server. I can run an snmpwalk on this device from the cacti server. At Device page in cacti website, That device can show detail (SNMP Information) of device but its All graphs cann't display and device shows status "Down". I have deleted the device from cacti and re-added it to no availiable. .

Any help would be greatly appreciated.


Turn On Graph Debug Mode.
RRDTool Says:
ERROR: opening usr/local/apache2/htdocs/cacti/rra/firewall7_conn_1009.rrd': No such file or directory

OS : Linux - RedHat
Cacti : 0.86

[fmangeant]

Hi

what "Downed Host Detection" method do you use ?

[saya]

i got the same problem...the device actually is active, but in my monitor plugin it keeps turning to DOWN and then returning back to UP again and again. and I can also receive alerm sms reporting the shifting of state...I can ping it when it's down...wonder why this happend..

(btw it helped me a lot to configure the thold plugin hahah)

[fmangeant]

Hi

what "Downed Host Detection" method do you use ?

[saya]

Hi

what "Downed Host Detection" method do you use ?

I use the monitor plugin to inform me if a device has turned down. and also in console->device can find that device host Down

[fmangeant]

What "Downed Host Detection" method do you use in Settings -> Poller -> Downed Host Detection ?

[saya]

It's Ping and SNMP. I applied this to all my devices, and only one of them continuously switching between up and down

[BSOD2600]

1) spine or cmd.php poller?

2) change the logging level to high for a while. Then monitor when the device goes down in cacti, look in the log file. Why does cacti think it went down? Possibly increase the timeout to the device.