SD-WAN Uptime Test

In most network environments, it is essential to monitor the uptime of critical appliances/services in the infrastructure. By tracking the uptime of each of the appliances/services, administrators can determine what percentage of time an appliance/service has been up. Comparing this value with service level targets, administrators can determine the most trouble-prone areas of the infrastructure.

In some environments, administrators may schedule periodic reboots of their appliances/services. By knowing that a specific appliance/service has been up for an unusually long time, an administrator may come to know that the scheduled reboot task is not working on an appliance/service.

This test included in the eG agent monitors the uptime of the target Citrix SD-WAN appliance. In addition, this test also reveals the uptime of the Virtual WAN Service configured on the target appliance.

Target of the test : A Citrix SD-WAN

Agent deploying the test : A remote agent

Outputs of the test : One set of results for the target Citrix SD-WAN appliance.

Configurable parameters for the test
Parameter	Description
Test Period	How often should the test be executed. By default, this is set to 5 minutes.
Host	The IP address of the target SD-WAN appliance for which this test is to be configured.
Port	Refers to the port at which the target SD-WAN listens to. By default, this will be NULL.
Timeout	Specify the time duration (in seconds) beyond which this test should time out in the Timeout text box. The default is 10 seconds.

Measurements made by the test
Measurement	Description	Measurement Unit	Interpretation
Has the appliance been rebooted?	Indicates whether the appliance has been rebooted during the last measurement period or not.		If this measure shows 1, it means that the appliance was rebooted during the last measurement period. By checking the time periods when this metric changes from 0 to 1, an administrator can determine the times when the appliance was rebooted.
Uptime during the last measure period	Indicates the time period that the appliance has been up since the last time this test ran.	Seconds	If the appliance has not been rebooted during the last measurement period and the agent has been running continuously, this value will be equal to the measurement period. If the appliance was rebooted during the last measurement period, this value will be less than the measurement period of the test. For example, if the measurement period is 300 secs, and if the appliance was rebooted 120 secs back, this metric will report a value of 120 seconds. The accuracy of this metric is dependent on the measurement period - the smaller the measurement period, greater the accuracy.
Total uptime of the appliance	Indicates the total time that the appliance has been up since its last reboot.		This measure displays the number of years, months, days, hours, minutes and seconds since the last reboot. Administrators may wish to be alerted if a server has been running without a reboot for a very long period. Setting a threshold for this metric allows administrators to determine such conditions.
Has the service been rebooted?	Indicates whether the Virtual WAN Service has been rebooted during the last measurement period or not.		If this measure shows 1, it means that the Virtual WAN Service was rebooted during the last measurement period. By checking the time periods when this metric changes from 0 to 1, an administrator can determine the times when the service was rebooted.
Uptime during the last measure period	Indicates the time duration for which the Virtual WAN Service has been running since the last time this test ran.	Seconds	If the service has not been rebooted during the last measurement period and the agent has been running continuously, this value will be equal to the measurement period. If the service was rebooted during the last measurement period, this value will be less than the measurement period of the test. For example, if the measurement period is 300 secs, and if the service was rebooted 120 secs back, this metric will report a value of 120 seconds. The accuracy of this metric is dependent on the measurement period - the smaller the measurement period, greater the accuracy.
Total uptime of the service	Indicates the time period that the Virtual WAN Service has been up since its last reboot.		This measure displays the number of years, months, days, hours, minutes and seconds since the last reboot. Administrators may wish to be alerted if the Virtual WAN Service has been running without a reboot for a very long period. Setting a threshold for this metric allows administrators to determine such conditions.