Monitoring Active/Standby failover

Small nit... It should be

 
 alert BIGIP_SOD_SODERR_SOD_STANDBY {   
           snmptrap OID=".1.3.6.1.4.1.3375.2.4.0.14";   
           lcdwarn description="Unit going standby." priority="0"; 
           email toaddress="LTM-alert@mydomain.com"   
           fromaddress="LTM1@mydomain.com"   
           body="LTM Failover event occured: Unit going to standby"   
   }   
   alert BIGIP_SOD_SODERR_SOD_ACTIVE {   
           snmptrap OID=".1.3.6.1.4.1.3375.2.4.0.15";   
           lcdwarn description="Unit going Active." priority="0"; 
           email toaddress="LTM-alert@mydomain.com"   
           fromaddress="LTM1@mydomain.com"   
           body="LTM Failover event occured: Unit going to active"   
   }   
  

Note the ';' (Semi-Colon) between the second alert (lcdwarn) and the third (email). (You need a semi-colon between each alert). Not obvious unfortunately. The alertd just logs into ltm that there's a problem at the email line otherwise.