WAN link monitoring
Hi, I have looked for previous questions regarding this, but haven't been able to find one, so I apologise if it has been asked/answered before.
We have several paths to a remote router that we monitored via it's loopback IP address. Observium does a great job at alerting us when that router is offline, but, I'm unable to find a way to be alerted when we have a single WAN link failure. During a WAN link failure we can still access the remote router via a redundant path, however, we are often not aware that the primary is offline since Observium can still reach the remote router.
Apart from checking if utilisation on the link drops below a certain level, is there any other way that I can perform a check and alert on the above scenario?
Thanks, Luke
Take a look at port alert checkers. Perhaps is the description something with WAN in the name? Then its very easy to have Observium to send an alert as soon as a port with WAN in the name is down!
/Markus
Den 26 juni 2017 3:24 em skrev "Luke Johnson" < luke@staff.broadbandsolutions.com.au>:
Hi,
I have looked for previous questions regarding this, but haven’t been able to find one, so I apologise if it has been asked/answered before.
We have several paths to a remote router that we monitored via it’s loopback IP address. Observium does a great job at alerting us when that router is offline, but, I’m unable to find a way to be alerted when we have a single WAN link failure.
During a WAN link failure we can still access the remote router via a redundant path, however, we are often not aware that the primary is offline since Observium can still reach the remote router.
Apart from checking if utilisation on the link drops below a certain level, is there any other way that I can perform a check and alert on the above scenario?
Thanks,
Luke
observium mailing list observium@observium.org http://postman.memetic.org/cgi-bin/mailman/listinfo/observium
On 27/06/17 00:31, Markus Klock wrote:
Take a look at port alert checkers. Perhaps is the description something with WAN in the name? Then its very easy to have Observium to send an alert as soon as a port with WAN in the name is down!
Unfortunately this is only true if the direct attached part of the wan link is down. If there is an issue in the middle (in the provider network) of long distance links often the customer ports don't go down... If the CE equipment is capable of running BFD (or alternatively any IGP, but BFD is fastest) it is possible to send a syslog message to the observium machine when BFD or the IGP goes down and build an alert based on this syslog message. Other triggers like IPSLA could work as well.
Martin
/Markus
Den 26 juni 2017 3:24 em skrev "Luke Johnson" < luke@staff.broadbandsolutions.com.au>:
Hi,
I have looked for previous questions regarding this, but haven’t been able to find one, so I apologise if it has been asked/answered before.
We have several paths to a remote router that we monitored via it’s loopback IP address. Observium does a great job at alerting us when that router is offline, but, I’m unable to find a way to be alerted when we have a single WAN link failure.
During a WAN link failure we can still access the remote router via a redundant path, however, we are often not aware that the primary is offline since Observium can still reach the remote router.
Apart from checking if utilisation on the link drops below a certain level, is there any other way that I can perform a check and alert on the above scenario?
Thanks,
Luke
participants (3)
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Luke Johnson -
Markus Klock -
Martin