parent host relatiionship

Matt Pounsett matt.pounsett at cira.ca
Tue Jan 20 16:43:50 CET 2004


On Mon, 19 Jan 2004, Neil wrote:

> What I want to happen is receive notifications only if srv-A or srv-B is 
> really down. Also, what I want is to not get tons of notifications if hosts 
> are behind a down parent. So something like this message is what I want to 
> receive: 

[...]

> 2. svr-a or svr-B is unreachable

Your paragraph above and point #2 seem contradictory to me.  On the one hand
you ask to only be notified if a host is really down, but then you include #2 in
the list of notifications you want.

Regardless of which is true, your parent config for the hosts would look like
this:

Host                       Parent
svr-A                    router-B
svr-B                    router-B
workstations             router-C
router-B                 router-A
router-C                 router-A

Now, depending on which of the two above options you really want (the
paragraph, or the list) you would configure notification_options for all those
hosts differently.

If it's the paragraph's description (where you only get notified if a host is
truly down), then you'd use 'd,r' (down, and recovery).  If your list is
accurate, where you also want to be notified if hosts are unreachable, then
you'd use 'd,u,r' (down, unreachable, and recovery).


-- 
Matt Pounsett                 CIRA - Canadian Internet Registration Authority
Technical Support Programmer                    350 Sparks Street, Suite 1110
matt.pounsett at cira.ca                                 Ottawa, Ontario, Canada
613.237.5335 ext. 231                                      http://www.cira.ca



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