eG Monitoring
 

Measures reported by NSDelinkTest

Whenever multiple connections are established to the NetScaler appliance, it is the onus of the administrators to keep track of the connections, figure out the connections that were delinked, connections that were terminated etc. When a TCP connection between the client side and server side delinks after a response is sent from the NetScaler device, that particular server connection can be reused for another client. This helps administrators to effectively utilize the connections to the NetScaler device. For an administrator to keep tab on the efficiency of the NetScaler device based on the connections that are established, the NSDelinkTest test is the best bet to rely upon!

This test helps administrators to figure out the number of server and client TCP conenctions that are delinked, the connections that are terminated, the number of TCP connections for RNAT that are delinked etc.

For this test to run and report metrics, the NetScaler device should be configured to create a Syslog file in a remote Syslog server, where the details of all interactions with the NetScaler appliance will be logged. To know how to configure the Syslog server where this Syslog file should be created, Click Here,

Outputs of the test : One set of results for the NetScaler appliance to be monitored

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
conn_delinks Indicates the number of times the server side and client side connections are delinked after the response is sent from the NetScaler device. Number By default, connections like HTTP are tracked by the NetScaler device.

The detailed diagnosis of this measure if enabled, lists the Source IP, vServer, NAT IP, Destination IP, Delink time, Data sent and Data received.
other_conn_delinks Indicates the number of times the server side and client side TCP connections were delinked. Number These are connections like FTP, Telnet etc that are not tracked by the NetScaler device.
conn_terminate Indicates the number of times the TCP connection was terminated. Number The detailed diagnosis of this measure if enabled lists the Source IP, Destination IP, the start time, the end time, the data sent and data received.
nat_conn_delinks Indicates the number of times the server side and client side TCP connection for RNAT was delinked. Number  
nat_other_delinks Indicates the number of times the server side and client side TCP connection that are not tracked by the NetScaler device for RNAT was delinked. Number These are connections that are not tracked by the NetScaler device.