Critical Audible Alarms with Unreachable Hosts

Scott Smith ssmith at siu.edu
Thu Dec 8 16:30:49 CET 2005


That is a possibility (only enabling the Host Down sounds).  We like
having the sounds for Critical and Warnings as well.  Otherwise the NOC
typically will not look at the Nagios webpage.  Hence why they stated
the Sound was just 'so' important to them.

If all the devices are Acked then there are no sounds from the webpage.

I was just thinking that it made sense to me if Nagios knows where the
Network Outage is, and is smart enough to only send one Notification,
then why doesn't it do the same thing on the webpage sounds?  It appears
to me that the same intelligence isn't transversed to the CGI's.  At
least that's my opinion at this point, I can't seem to find any solid
answer on this question yet.

Steven Danz wrote:

> Scott Smith wrote:
>
>> I have been using Nagios for a while (several years, and even when it 
>> was NetSaint).  Just recently we had our NOC switchover from HP 
>> OpenView to Nagios.  In doing so we updated all the Hosts from our 
>> network into the Nagios config, some 990 plus Hosts, and now over 
>> 1000 services.
>>
>> Here is my issue.  When we have a building go down, say 5 Switches 
>> (Hosts), and we have the Parents Relationship setup properly we see 1 
>> Host Down, and 4 Hosts Unreachable.  We only get one Email 
>> Notification about the single Host being down, which is what we 
>> want.  However, the NOC has recently asked use to enable the Sound 
>> for Nagios, which we did with the cgi.cfg file.  The problem is that 
>> when the NOC Acknowledges the root problem, and services from the 1 
>> Host that is down, we keep getting the Critical.wav alert on our 
>> webpages.  They have to goto ALL the Unreachable devices services, 
>> and Acknowledge them as well.
>> In this example isn't to bad, however some of our buildings have over 
>> 100 Hosts, and if the main router goes down for that building our NOC 
>> would have a nightmare trying to Ack each Host.  Ultimately I would 
>> think that they should just Ack the Root problem, and then the 
>> Unreachable Children (so to speak) would not need Acking.  The more 
>> interesting part is that Nagios seems to understand this by only 
>> sending one Email, but the webpages don't.
>>
>> Any ideas on this one?
>
>
> From what I see, aren't there different sounds for host down, host 
> unreachable, service critical, service warning, service unknown, and 
> normal?  It would seem that you could just enable the host down sound, 
> and only get 1 audible alert.  Is that what isn't working, or am I 
> missing the point?
>
> Is it only making sounds on the page reloads?  I wasn't sure if the 
> sounds were generated if the condition was ack-ed or not.
>
> Just some thoughts.
>
> -Steven
>

-- 
Scott Smith
Network Engineering Services
Southern Illinois University Carbondale
ssmith at siu.edu



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