Load balancer: Citrix Netscaler Discovery of Citrix Netscaler load balancers is performed by SNMP. Warning: DO NOT switch from probes to patterns if you are already running discovery with probes and your CMDB is already populated. If you do, it is possible that the pattern discovery process does not synchronize on the same values that the probe discovery process does. The result could be duplicate CIs in your CMDB. Requirements and support Important: Discovery treats hardware load balancers as network devices and attempts to discover them primarily using SNMP. If a load balancer in your system, running on a Linux host, has SNMP and SSH ports open, Discovery might classify it based on the SSH port. This classification has priority over SNMP. To ensure that Discovery properly classifies your hardware load balancers, create a Discovery behavior for load balancers that includes SNMP but not SSH. Software load balancers are treated as applications. Virtual NetScaler load balancers are not fully supported. Discovery supports local server load balancers and GSLB. Credentials Configure SNMP credentials and SSH credentials. Service Mapping uses the SSH credentials to retrieve connections not from the CMDB. Discovering connections using the SSH protocol is a failover mechanism for the SNMP-based discovery. For both Discovery and Service Mapping, see Service Mapping commands requiring a privileged user for a list of the commands that require elevated rights to discover and map Unix-based hosts in your organization. Classifier, pattern, and probes Classifier Trigger probes Patterns Netscaler Load Balancer Horizontal discovery probe: launches patterns (see the Patterns column) Netscaler - Network Path Information (multiprobe) Netscaler - ARP Information Netscaler - Route Information SNMP - Netscaler - Identity SNMP - Netscaler - Identity - Serial SNMP - Netscaler - Identity Info SNMP - Netscaler - System Netscaler Load Balancer Netscaler Load Balancer NS.CONF Netscaler Load Balancer SSH Data collected The following data is collected on the Citrix Netscaler [cmdb_ci_lb_netscaler] table. Label Field Name Serial Number serial_number Operational Status operational_status The following data is collected on the Load Balancer Pool [cmdb_ci_lb_pool] table. Label Field Name Name name Load Balancing Method load_balancing_method The following data is collected on the Load Balancer Pool Member [cmdb_ci_lb_pool_member] table. Label Field Name Name name IP Address ip_address Service Port service_port The following data is collected on the Load Balancer VLAN [cmdb_ci_lb_vlan] table. Label Field Name Name name Tag tag The following data is collected on the Load Balancer Services [cmdb_ci_lb_service] table. Label Field Name Name name IP Address ip_address Port port Operational Status operational_status Install Status install_status Hit count hit_count Note: Discovery does not gather the load balancer interface information that is necessary to map the network path in Service Mapping. Service maps might not appear correct. To use patterns, verify that the correct pattern is specified in the horizontal pattern probe on the classifier. See Add the Horizontal Pattern probe to a classifier for instructions.