I have a weird issue with one of my device types (ie linux based firewall).
When I restart SNMP service on the firewall, I start getting these two errors in Zenoss:
SNMP agent down - no response received.
Unable to read processes on device XXXXX; Timeout on device.
When I check the status of the device in Zenoss, everything seems to be ok. I can do a snmpwalk, modeling. There are no red lights. The only thing I've noticed is that device performance data is not being collected.
To fix this, I restart zenperfsnmp and zenprocess daemons and these two errors go away and data starts to be collected.
I dont want to do that every time I do maintenance on a firewall.
I tried running zenperfsnmp with debugging enabled just to that device. I did not see any errors.Everything was processed and retreived.
Any ideas? or can somebody point me in the right direction for troubleshooting this?
Thank you .