Question about host dependency.

[Stanley Hopcroft]

Dear Sir,

On Thu, Dec 12, 2002 at 04:10:49PM -0600, Potter, G M (Greg) wrote:
> All of my workstations and servers are on the same subnet, 
> but connect to different switches.  Would you use the same
> technique (with switches as parents) to configure Nagios
> not to notify if hosts connected to a different switch were
> unavailable.  We have lost 2 supervisor cards in our Cisco
> 4006 switches this year.  Just wondering.
>

My employer does.

Only trick is recognizing that the switch has 'shuffled off this mortal 
coil'.

Our Cat switches (5000, 29xx) ocassionally lose the ability to respond 
to ICMP - perhaps because the agent has dies - and while they bridge Ok, 
they are not easily detectable as alive.

The lists SNMP authorities may have better ideas about this.

If however, you lose power to your switches, its a great way of avoiding 
Notifications from Hell.
 
> Greg M. Potter
> mailto:gpotter at marathonoil.com
> 
> Non Scio, id est in Latina!
> 
>             ~~|\
>             / | \           
>   ~^~^~^~  /  |  \ ~^~ Greg Potter~^~^~^~^
>    ~^~^~  / 9255  ) ~^ Oklahoma City, OK^~^
>     ~^~^_/____|____) ^~^~^~^~^~^~^~^~^~^~^~^
>    ~^~^ \_________/ ^~^~^~^~^~^~^~^~^~^~^
>  ~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~^~
> 

Yours sincerely.


-- 
------------------------------------------------------------------------
Stanley Hopcroft
------------------------------------------------------------------------

'...No man is an island, entire of itself; every man is a piece of the
continent, a part of the main. If a clod be washed away by the sea,
Europe is the less, as well as if a promontory were, as well as if a
manor of thy friend's or of thine own were. Any man's death diminishes
me, because I am involved in mankind; and therefore never send to know
for whom the bell tolls; it tolls for thee...'

from Meditation 17, J Donne.


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