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How to prevent alarm suppression on sub-interfaces?

  • 1.  How to prevent alarm suppression on sub-interfaces?

    Posted 08-22-2017 03:36 AM

    Hi Folks,

     

    I've a lot of routers where I need to monitor certain sub-interfaces identified by the ifAlias. So far I was using a GlobalCollection to "collect" the port models and then enable "active port monitoring" via PolicyManager.

     

    What I didn't consider was the fact that Spectrum RCA-feature would suppress the alarms on the interface models.

     

    So if I have the following situation

    • Parent_Interface_1 (no monitoring)
      • Sub_Interface_1A (ifAlias ".*WAN BACKUP.*") => (active monitoring)

     

    and Sub_Interface_1A goes down because Parent_Interface_1 goes down... will result in no alarm because the alarm on Sub_Interface_1A gets suppressed because all lower-layer interfaces are down, too. Result: I've no alarm at all.

     

    Any ideas about how I might resolve this?

     

    Thanks and regards,

    Jan



  • 2.  Re: How to prevent alarm suppression on sub-interfaces?

    Posted 08-22-2017 07:25 AM

    Jan,

     

    Try the following:

     

    1. If these interfaces are connected with a pipe, enable the live link and set the "Suppress Linked Port Alarms" parameter in the Live Pipes subview of the VNM model to No.

     

    2. Set the EnableSuppressedAlarms attribute id 0x12ddf attribute on the interface model to Yes

     

    Joe