Multiple host parents / dependencies

[Joe Pruett]

On Fri, 11 Mar 2005, Chris Wilson wrote:

> Hi Daniel,
> 
> I don't understand why the dependency "doesn't work".
> 
> If you want the host to be marked unreachable whenever the switch (or
> ITS parent) goes down, then make its parent the switch. This is
> completely independent of the physical connections, layer 2, etc. It's
> just and exactly how Nagios evaluates whether a host is unreachable or
> not.
> 
> When you say the router dependency "doesn't work as expected", that
> doesn't give me enough information to even begin to figure out what the
> problem is. What is "expected" and how does the observed behaviour not
> match it? What exactly is the configuration of the router, switch and
> host? (copy & paste please).
> 
> Cheers, Chris.
> 
> On Fri, 2005-03-11 at 13:20, Daniel Wüthrich wrote:
> > Hi
> > 
> > This does not work in our enviroment because we are using vlan. All  
> > switches have a management interface and therefore each switch has another  
> > switch as parent => Layer 2 network Layout (all switches are checked in  
> > this management network. Therefore a dependency "switch -> host" is not  
> > possible.
> > 
> > I tried to make a hostdependency for the layer 3 (router) dependency but  
> > it doesn't seem to work as I expect.

i have a similar layout and i created "hosts" for each vlan where the host 
check is just a ping of the admin interface for the switch.  if the switch 
goes down, all the vlans go down too.



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