How Horizontal discovery sets the operational status for Netscaler load balancer devicesIssue <!-- div.margin{ padding: 10px 40px 40px 30px; } table.tocTable{ border: 1px solid; border-color:#E0E0E0; background-color: rgb(245, 245, 245); padding-top: .6em; padding-bottom: .6em; padding-left: .9em; padding-right: .6em; } table.noteTable{ border:1px solid; border-color:#E0E0E0; background-color: rgb(245, 245, 245); width: 100%; border-spacing:2; } table.internaltable { white-space:nowrap; text-align:left; border-width: 1px; border-collapse: collapse; font-size:14px; width: 85%; } table.internaltable th { border-width: 1px; padding: 5px; border-style: solid; border-color: rgb(245, 245, 245); background-color: rgb(245, 245, 245); } table.internaltable td { border-width: 1px; padding: 5px; border-style: solid; border-color: #E0E0E0; color: #000000; } table tr td { padding: 15px; } .title { color: #D1232B; font-weight:normal; font-size:28px; } h1{ color: #D1232B; font-weight:normal; font-size:21px; margin-bottom:-5px } h2{ color: #646464; font-weight:bold; font-size:18px; } h3{ color: #000000; font-weight:BOLD; font-size:16px; text-decoration:underline; } h4{ color: #646464; font-weight:BOLD; font-size:15px; text-decoration:; } h5{ color: #000000; font-weight:BOLD; font-size:13px; text-decoration:; } h6{ color: #000000; font-weight:BOLD; font-size:14px; text-decoration:; } ul { list-style: disc outside none; margin-left: 0; } li { padding-left: 1em; } --> Overview Netscaler Pattern uses an SNMP query for getting the Failoverstatusid and maps it to operational status of the CI. The SNMP query for getting the Failover status with the OID is: 1.3.6.1.4.1.5951.4.1.1.6If you look for OID: 1.3.6.1.4.1.5951.4.1.1.6 in the Netscaler documentation or in the MIB browser you can see that: 0 - standalone, 1 - primary, 2 - secondary Pattern will update the operational status of the load balancer based on the response from the query. If the SNMP query returns the value as 2, the load balancer is updated as non-operational. Additional Information For more information, see the NS-ROOT-MIB documentation.