Monitoring of devices - avoid multiple alarms

Antony · Post by **Antony** » Tue Oct 11, 2005 4:25 am

Hello,

i am facing a small problem when i monitor my network devices. E.g. i have configured a ping check for a router every 1 minute and a snmp get for its interfaces every 2 minutes. If i enable (for the first time i mean) the ping alarm (enable alarm) after i enable the snmp get alarm, this may allow the snmp get alarms to send me an email (at the case of the router goes down) before the ping alarm sees that the device is off. I have set the snmp get checks to become inactive in case the ping command is not successul, yet in the above case this is not happening. How can i prevent the snmp get alarms from sending me an email? Can i set the ping alarm to be executed in case the snmp alarms show a problem?

e.g.
the snmp get alarms become active at 00.00.00 (hh.mm.sec)
the ping command becomes active at 00.01.00

If the router goes down at 00.02.40, the snmp alarms will send me an email, which i'd rather it didn't happen, i prefer to get one email from the ping alarm.

I hope you understood my problem

KS-Soft · Post by **KS-Soft** » Tue Oct 11, 2005 11:25 am

I think you should setup Ping test as Master test for SNMP check.
http://www.ks-soft.net/hostmon.eng/mfra ... htm#Master

Also check "Consider status of the master test obsolete after N seconds" option that is located on Behavior page in the Options dialog. You may setup 2 sec interval...

Regards
Alex

Antony · Post by **Antony** » Wed Oct 12, 2005 7:11 am

KS-Soft wrote:I think you should setup Ping test as Master test for SNMP check.
http://www.ks-soft.net/hostmon.eng/mfra ... htm#Master

Also check "Consider status of the master test obsolete after N seconds" option that is located on Behavior page in the Options dialog. You may setup 2 sec interval...

Regards
Alex

I have setup Ping as master test, but as you realize it doesn't matter because the snmp tests are fired off before the ping test (and at that specific time the ping check show no problem).

I don't quite understand the option you mentioned. Does it mean that the dependent tests (in this case, the snmp tests) will consider the last master test's reponse (in this case, it's the ping test) to be valid for a period of time which i can determine (N seconds)? In case the master test has been performed in more than N seconds ago, what do the dependent tests do? Do they start checking or not?

Thank you very much for your response, i really appreciate it!!

KS-Soft · Post by **KS-Soft** » Wed Oct 12, 2005 10:17 am

In case the master test has been performed in more than N seconds ago, what do the dependent tests do? Do they start checking or not?

Dependant test will start master test again and check its result

Regards
Alex

Antony · Post by **Antony** » Wed Oct 12, 2005 10:26 am

KS-Soft wrote:
In case the master test has been performed in more than N seconds ago, what do the dependent tests do? Do they start checking or not?
Dependant test will start master test again and check its result

Regards
Alex

Wow, that's the answer i was looking for!!! Thank you so much Alex, i'll give it a try and let you know if i have a problem.

KS-Soft · Post by **KS-Soft** » Wed Oct 12, 2005 1:24 pm

You are welcome

Antony · Post by **Antony** » Tue Oct 18, 2005 7:15 am

KS-Soft wrote:You are welcome

Your solution works like a charm, thanks