The NetScaler Features are not licensedīefore using a feature, make sure that your license supports the feature.To verify the licensed features refer to Citrix Documentation - Verifying the Licensed Features.A markup is one kind of percent increase. For information on enabling a feature of NetScaler refer to Citrix Documentation - Enabling or Disabling a NetScaler Feature. You can configure NetScaler feature (load balancing, content switching and so on) entities such as services and virtual servers when a feature is disabled, but they will not function until you enable the feature. > bind ssl certkey The NetScaler Features are not enabled To resolve this issue, run the following command to bind an SSL certkey to the virtual server: If a virtual server hosts a Secure Socket Layer (SSL) service, then the status of the virtual server is marked as DOWN if an SSL cerkey is not bound to the virtual server. If only default monitors are bound to the service and the service is not available, then verify the network connectivity between the NetScaler appliance and the back end servers. Note: Different default monitors are defined for different service types. If network connectivity can be established, but monitoring probes are failing, then unbind the non-default monitors from the service by running the following command: The status of a service is marked as UP only if probes from all monitors bound to the service are successful. Consider the following points when troubleshooting such issues: In this scenario the service is not available because the monitor tcp-default fails indicating that the service is not accepting TCP connections. Last response: Failure - TCP syn sent, reset received. Time since last state change: 1 days, 05:00:01.790 The following is a sample output for your reference: Run the following command to verify if any non-default server monitor is bound to the service: You can use the following options to troubleshoot a service that is not available: A virtual server must have at least one service bound and should be available, to ensure that the status of the virtual server is marked as UP.Ī service might not be available because of multiple reasons, such as communication failure between the NetScaler appliance and the server hosting the service. In this scenario, the status of the virtual server is marked as DOWN because the only bound service is not available. The following is a sample output of show vserver command, when all services being not available is the reason for the status of a virtual server being marked as DOWN:Įxample_down_vip (0.0.0.0:0) - HTTP Type: ADDRESSġ) Blue (10.198.4.43: 80) - HTTP State: DOWN Weight: 1 To verify the status of the services bound to a specific virtual server, run the following command from the command line interface of the appliance: All services bound to the virtual server are not available If there are no services listed at the end of the output, then the reason for the status being marked as DOWN is because no service is bound to the virtual server.įor information on types of services and how create a service refer to Citrix Documentation. To verify if services are bound to a specific virtual server, run the following command from the command line interface of the appliance: Each service has a name and specifies an IP address, a port, and the type of data that is served. Each virtual server must have atleast one service bound to it. Show vserver Probable Reasons for the Status of NetScaler Virtual Server Being Marked as DOWN No service is bound to the virtual serverĪ service provides the connections between the NetScaler appliance and the back end servers. Alternatively, you can run the following command from the command line interface of the appliance to view the status of the virtual servers: To view the status of a virtual server navigate to Traffic Management > Load Balancing > Virtual Servers. The status of a virtual server might be marked as OUT OF SERVICE when you disable the virtual server but do not delete it. You can use the URL Redirection feature of the NetScaler appliance or configure backup virtual servers to provide continuous service if the status of the main virtual server is marked as DOWN, unexpectedly.
When the status of the virtual server is marked as UP, it is operational and ready to service requests. The virtual servers on a NetScaler appliance can have any of the following state: This article contains the probable reasons for the status of a virtual server being marked as DOWN on NetScaler.
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