(Nagios-Ping)

[Paul Weaver]

> From: Paulus, Jake [mailto:jpaulus at sourceinterlink.com] 
> Sent: 27 August 2008 13:50
> To: Paul Weaver; Nagios Users Mailinglist
> Subject: RE: [Nagios-users] (Nagios-Ping)
> 
> I have this issue as well. In my case I believe it exists 
> because servers are improperly multi-homed; this is a server 
> configuration problem, not a network one. I have brought this 
> issue to the server administrator's attention and they are 
> unaware of any impact (probably because TCP retries are 
> hiding this) it causes to users and so have chosen to take no action.
> 
> -Jake

I'd be tempted to believe this is the case in two of the worst offenders
-- both outside provided machines -- but one of the machines only has a
single connection to a switch, so the compass swings back to some
OSPF/HSRP issue. 

As to people ignoring issues that TCP hides, we have that problem. A
friend from a fairly large company was suffering from a 3% packet loss
on one switch last week, which caused havoc with a UDP based system they
had. The network guys refused to believe there was a problem because
outlook was still working (even 80% packet loss doesn't affect exchange
-- it's slow and crashy enough anyway)

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