Combo test questions
list Paul Root
We are thinking of implementing a few combo tests for our network elements (cisco routers with devmon). We're wondering about what happens if the primary goes down, and things failover successfully to the secondary. Then if we blue out the primary failure, would the combo test still work if the secondary goes down? We'd be bluing out the primaries test, not the combo test. Or would we need to do a more complex test that takes that into account? Thanks, Paul.
list Japheth Cleaver
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We are thinking of implementing a few combo tests for our network elements (cisco routers with devmon). We're wondering about what happens if the primary goes down, and things failover successfully to the secondary. Then if we blue out the primary failure, would the combo test still work if the secondary goes down? We'd be bluing out the primaries test, not the combo test. Or would we need to do a more complex test that takes that into account? Thanks, Paul.
I've not used the combo tests much myself, but my understanding from combo.cfg(5) is that blue is equivalent to a red, so as long as your combo test is defined to stay green if at least one thing is up it would stay green. If the secondary also went down (either red or blued out), the combo test would then go red. I think. HTH, -jc
list Paul Root
I finally found time to test this. Blue does not equal red for the combo. It is green. The answer comes back as 1.
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-----Original Message-----
From: user-87556346d4af@xymon.invalid [mailto:user-87556346d4af@xymon.invalid] Sent: Monday, January 07, 2013 2:06 PM
To: Root, Paul
Cc: 'xymon at xymon.com'
Subject: Re: [Xymon] Combo test questions
We are thinking of implementing a few combo tests for our network elements (cisco routers with devmon). We're wondering about what happens if the primary goes down, and things failover successfully to the secondary. Then if we blue out the primary failure, would the combo test still work if the secondary goes down? We'd be bluing out the primaries test, not the combo test. Or would we need to do a more complex test that takes that into account? Thanks, Paul.
I've not used the combo tests much myself, but my understanding from combo.cfg(5) is that blue is equivalent to a red, so as long as your combo test is defined to stay green if at least one thing is up it would stay green. If the secondary also went down (either red or blued out), the combo test would then go red. I think. HTH, -jc