notification

[Mark D. Nagel]

Andreas Ericsson wrote:

>
> Hostdependencies fill very limited role for very obscure networks now 
> adays, although I believe it was previously useful.
>

I had a rare opportunity to use a host dependency recently.  It was in 
the case where we were monitoring the interior gateway of a remote VPN 
endpoint as well as the exterior IPSec peer address.  The parent-based 
dependency relationship to the exterior address flowed through the 
Internet path, however, we also wanted to suppress alerts for problems 
on the interior gateway if the remote Internet link was down, even 
though the parent relationship of the tunnel flowed through the local 
concentrator.  Using a hostdependency resolved that quite nicely:

# don't bother with IPSec test if T1 is down
define hostdependency {
    dependent_host_name                 vpn-interior-interface
    host_name                           t1-interface
    notification_failure_criteria       d,u
}

Mark

-- 
Mark D. Nagel, CCIE #3177 <mnagel at willingminds.com>
Principal Consultant, Willing Minds LLC
tel: 714-630-4772, fax: 714-630-4773, web: http://www.willingminds.com/



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