Hi, default port fault isolation policy is "All connected ports" after fault isolation on device level, spectrum will check all connected port to determine if port is the root cause. and the alarm would be on the down port, not devices. If spectrum can't determine the cause you will get a "Fault isolation model" alarm you can just check the root cause tab to see what spectrum determines the cause to be.
Regards, Bruce On 23 Aug, 2012, at 7:33 AM, Rob <[email protected]> wrote: > Agreed... but he said he had: > > spectrum --> router --> switch > > So in theory if he had "spectrum-->router" resolved, why then did it look > like an isolated set of models regarding Fault Iso? > > -Rob > > > On 8/22/2012 11:56 AM, Stephen Warne wrote: >> Kavi >> >> If you have two devices connected to each other but not to any other >> devices, and Spectrum loses contact to both of them, they will both >> (correctly) go into a supressed state. >> >> The reason for this is that Spectrum's fault isolation looks at the >> condition of all the neighbours of a device it loses contact with to >> determine whether that device is the root cause. In this instance spectrum >> will see that that ALL (in this case one) devices connected are down, this >> causes the device's alarm to be supressed as it can't be the root cause as >> it is 'surrounded' by devices that are down. I hope my hurried explanation >> makes sense :-) >> >> Regards >> Steve. >> >> -----Original Message----- >> From: kavi arasu [mailto:[email protected]] >> Sent: 21 August 2012 19:15 >> To: spectrum >> Subject: [spectrum] Root cause alarm >> >> Hi, >> >> we had router connected to a switch, both are monitored in Spectrum. >> Actually both the devices are down at same time due to power failure. >> But we didn't get any alerts in spectrum for both the devices, when i >> checked the events of the router it says alarm is suppressed due to upstream >> device is down and when i checked in switch it says alarm is suppressed due >> to upstream device is down. >> >> But actual connection is spectrum --> router --> switch. >> >> Actually, i should get alert on router and the switch alert should be >> suppressed. >> >> Did any one came across this situation. how do we over come this. >> >> Regards, >> Kavi >> --- >> To unsubscribe from spectrum, send email to [email protected] with the body: >> unsubscribe spectrum [email protected] >> >> --- >> To unsubscribe from spectrum, send email to [email protected] with the body: >> unsubscribe spectrum [email protected] > > > --- > To unsubscribe from spectrum, send email to [email protected] with the body: > unsubscribe spectrum [email protected] --- To unsubscribe from spectrum, send email to [email protected] with the body: unsubscribe spectrum [email protected]
