[j-nsp] Solarwinds Monitoring Problem

[Jeff Cadwallader]

Paul

We have seen the same thing on our ex series 3200 and 4200. we have not seen
it on our MX480's yet. Our logs showed that the SNMP daemon had stopped.
Opened a case with jtac and they mention (after 2 months I might add) that
if you used Juniper's NMS (which we are) that that might cause those
symptoms due to excessive polling. We junked the NMS and it hasn't seemed to
happen since.

Jeff

On Sat, Jun 5, 2010 at 8:23 AM, Paul Stewart <paul at paulstewart.org> wrote:

> Hi folks...
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> I'm starting here to see if anyone has seen this behaviour before by
> chance....
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> We're in a migration to Solarwinds for monitoring of our network resources.
> On the network are several Juniper devices (and lots more coming soon).
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> Every so often (about once a month or so), the Solarwinds system triggers
> with a "node down" alarm.  When this occurs, it's showing a Juniper device
> (which varies) as "down".  Definition of "down" simply means it's not
> pingable.
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> The behaviour we're seeing is that from the Solarwinds server we suddenly
> cannot ping the remote Juniper device - however - we continue to monitor
> SNMP successfully on that device.  These Juniper devices have been MX480,
> EX3200 and EX4200 to date.  During these outages I have been able to ping
> these devices from any other location on our network except the Solarwinds
> server.
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> If I reboot the Solarwinds server, the alarm clears so I thought this is
> clearly an issue with the monitoring system ... but ... recently I rebooted
> one of the Juniper switches and the issue cleared as well....
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> Logs on the Juniper devices are clean - nothing indicating a problem.
> Solarwinds systems doesn't show anything of interest...
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> Thoughts? ;) I'm thinking of setting up another open source monitoring
> solution just to further eliminate the Juniper side of this...
>
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>
> Paul
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