[j-nsp] Solarwinds Monitoring Problem

[Eric Van Tol]

> -----Original Message-----
> From: juniper-nsp-bounces at puck.nether.net [mailto:juniper-nsp-
> bounces at puck.nether.net] On Behalf Of Jensen Tyler
> Sent: Monday, June 07, 2010 10:45 AM
> To: Paul Stewart
> Cc: 'juniper-nsp'
> Subject: Re: [j-nsp] Solarwinds Monitoring Problem
> 
> I have seen the same issue with Solarwinds across many devices. I think
> Solarwinds only sends 1 ICMP message. If that message is lost it declares
> the node down. Ours has come back up on the next polling interval though.
> We also run NSM Express and haven't seen an issue with false alarms.
> 
> On a side note solarwinds has a knob for tuning your polling settings.
> Might look at your timeouts.
> 
> Jensen Tyler
> Network Engineer
> Fiberutilities Group, LLC

You might also want to set the size of the ICMP message within the Solarwinds NPM Advanced Options.  I recall having a problem of ICMP pings under a certain size were sometimes dropped by various vendor gear, not just by Juniper.

-evt