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wesweber_98132's avatar
wesweber_98132
Icon for Nimbostratus rankNimbostratus
Apr 16, 2008

SNMP Failover

We have 2 LTMs running as redundant devices. We want to get alerts when one box fails over to the other box. Is there a OID(s) that would detect a failover event.
management
monitoring
  • The_Bhattman's avatar
    The_Bhattman
    Icon for Nimbostratus rankNimbostratus
    Apr 17, 2008
    Here is how I did this using SNMP polling

     

     

    I downloaded MIBS(F5-BIGIP-SYSTEM-MIB) from the LTM unit into my monitoring tool. In this case HP's SiteScope.

     

     

    Set the the counter path to the following:

     

     

    starting OID = 1

     

    Counter: iso/org/dod/internet/private/enterprises/f5/bigipTrafficMgmt/bigipSystem/sysGlobals/sysGlobalAttrs/sysGlobalAttr/sysAttrFailoverUnitMask

     

     

    sysAttrFailoverUnitMask = 3 = Primary

     

    sysAttrFailoverUnitMask = 0 = Secondary

     

     

    I setup to 2 monitors, 1 for each LTM. If the Primary reports 0 it alerts. If the secondary goes to 3 it alerts.

     

     

    Hope this helps.

     

     

    If anyone else has a better OID please post.

     

     

    /CB