Thanks for the info ,good to know, (cpu never went over 5% though) We shut down the monitor today and the switch rebooted twice, and now appears to have crashed.
As Kurt pointed out if the FW upgrade doesn't fix it , it just maybe the hardware From: bern...@yosemite.edu To: ntsys...@lists.myitforum.com Subject: RE: [NTSysADM] PRTG crashed a switch? Date: Wed, 15 Jul 2015 23:12:52 +0000 I don’t know about PRTG in particular, but in general I have read of monitoring systems crashing or causing high CPU utilization on the monitored device. But the affected devices are usually small embedded types of things; I wouldn’t expect a network switch to be affected (although I think some of the high cpu utilization reports were for a NetApp filer). References: How to disable combining SNMP varbinds (getbulk)? https://www.zabbix.com/forum/showthread.php?t=45001 there should be a way to disable SNMP bulk for each interface https://support.zabbix.com/browse/ZBXNEXT-2301 -- Edward Berner From: listsadmin@lists.myitforum.com [mailto:listsadmin@lists.myitforum.com] On Behalf Of J- P Sent: Wednesday, July 15, 2015 9:29 AM To: NT Subject: [NTSysADM] PRTG crashed a switch? Hi all Went onsite yesterday to check out some network issues, so I fired up PRTG and let it do its thing. Later in the evening when I'm home I VPN into the site and after 12 minutes my vpn drops , I check the public IP internet is up. I call the IT mgr and let him know that I cant authenticate, he goes to the office and tells me the core switch (240 port procurve) is lit up like Christmas tree (all lights flashing), no telnet no ssh no ping reply , he does a physical shutdown , and I'm back in , ten minutes later it drops again this happened 4 times. Finally the last time it remains online, they are telling me that this "has never happened before" (at least that they know of it was late at night) Oh and the logs on the switch only show 2 entries 1. First time installation 2. Warning loss of link on B10 So is it possible that PRTG caused this, or is likley they've never been around that late to realize this?
