Traffic Health Monitoring

monitors the traffic health of the entire Monitoring Session and each individual Node in that session. It checks for issues like packet drops or traffic overflows.

When it detects a problem,  updates the health status of the related Monitoring Session. It monitors traffic health in near real-time.

The Node tracks traffic levels. If traffic goes above or below the configured threshold, it alerts   . Then,   then uses this data to calculate traffic health.

If you deploy  and Nodes in different cloud platforms, you must add the public IP address as the Target Address in the Data Notification Interface on the Event Notifications page.

For details, refer to the Configuration Settings section in the for configuration details.

This feature supports Nodes on the respective cloud platforms.

For V Series Nodes:

• AWS
• Azure
• OpenStack
• VMware
• Third Party Orchestration

For instructions on creating and applying threshold templates across a Monitoring Session or an application, and viewing the traffic health status, refer to the following topics:

• Supported Resources and Metrics
• Create Threshold Template
• Apply Threshold Template
• Edit Threshold Template
• Clear Threshold Template

Consideration to configure a threshold template

• By default, Threshold Template is not configured to any Monitoring Session. If you wish to monitor the traffic health status, then create and apply threshold template to the Monitoring Session.

• Editing or redeploying the Monitoring Session reapplies all the threshold policies associated with that Monitoring Session.

• Deleting the Monitoring Session clears all the threshold policies associated with that Monitoring Session.

• Threshold configuration is applied before deploying a Monitoring Session and remains even if the session is undeployed.

• After applying threshold template to a particular application, you need not deploy the Monitoring Session again.

Supported Resources and Metrics

The following table lists the resources and the respective metrics supported for traffic health monitoring:

Create Threshold Template

To create threshold templates:

1. Go to Inventory > Resouces > Threshold Templates.

   The Threshold Templates page appears. 

2. Select Create to open the New Threshold Template page.

3. Enter the appropriate information for the threshold template as described in the following table:

   Field	Description
   Threshold Template Name	The name of the threshold template.
   Thresholds
   Monitored Objects	Select the resource for which you wish to apply the threshold template. Eg: TEP, REP, Maps, Applications like Slicing, Dedup etc
   Time Interval	Frequency at which the traffic flow needs to be monitored.
   Metric	Metrics that needs to be monitored. For example: Tx Packets, Rx Packets.
   Type	Difference: The difference between the stats counter at the start and end time of an interval, for a given metric. Derivative: Average value of the statistics counter in a time interval, for a given metric.
   Condition	Over: Checks if the statistics counter value is greater than the 'Set Trigger Value'. Under: Checks if the statistics counter value is lower than the 'Set Trigger Value'.
   Set Trigger Value	Value at which a traffic health event is raised, if statistics counter goes below or above this value, based on the condition configured.
   Clear Trigger Value	Value at which a traffic health event is cleared, if statistics counter goes below or above this value, based on the condition configured.

4. Select Save. The newly created threshold template is saved, and it appears on the Threshold Template page.

Apply Threshold Template

You can apply your threshold template across the entire monitoring session and also to a particular application.

Apply Threshold Template to Monitoring Session

To apply the threshold template across a monitoring session, follow the steps given below:

1. In , on the left navigation pane, select Traffic > Virtual > Orchestrated Flows and select your cloud platform. The Monitoring Session page appears.
2. Select the monitoring session and select Actions > Apply Thresholds.The Apply Thresholds page appears.
3. From the Select Template drop-down list, select the template you wish to apply across the Monitoring Session.
4. Select Done.

Apply Threshold Template to Applications

Applying threshold template across Monitoring Session does not overwrite the threshold value applied specifically for an application. When a threshold value is applied to a particular application, it overwrites the existing threshold value for that particular application.

To apply the threshold template to a particular application in the Monitoring Session, follow the steps given below.

1. On the Monitoring Session page, select TRAFFIC PROCESSING tab. The Monitoring Session canvas page appears.
2. Select the application for which you wish to apply or change a threshold template and select Details. The Application quick view opens.
3. Select the Thresholds tab. Select the template you wish to apply from the Threshold Template drop-down menu or enter the threshold values manually.
4. Select Save.

Edit Threshold Template

To edit a particular threshold template follow the steps given below:

1. On the Threshold Template page, select Edit. The Edit Threshold Template page appear. The existing threshold templates is listed here.
2. Edit the templates you wish to modify.
3. Select Save.

Editing a threshold template does not automatically apply the template to Monitoring Session. You must apply the edited template to Monitoring Session for the changes to take effect.

Clear Thresholds

You can clear the thresholds across the entire monitoring session and also to a particular application.

Clear Thresholds for Applications

To clear the thresholds of a particular application in the Monitoring Session, follow the steps given below:

1. On the Monitoring Session page, select TRAFFIC PROCESSING tab. The Monitoring Session canvas page appears.
2. Select the application for which you wish to clear the thresholds and select Details. The Application quick view opens.
3. Select the Thresholds tab. 
4. Select Clear All and then select Save.

Clear Thresholds across the Monitoring Session

To clear the applied thresholds across a Monitoring Session, follow these steps:

1. On the left navigation pane in , select Traffic > Virtual > Orchestrated Flows and select your cloud platform. The Monitoring Sessions landing page appears.
2. Select the Monitoring Session and navigate to TRAFFIC PROCESSING > Options > Thresholds,.
3. Select Clear Thresholds.
4. On the Clear Threshold pop-up, select Ok.

Clearing thresholds at Monitoring Session level does not clear the thresholds that were applied specifically at the application level. To clear thresholds for a particular application, refer to Clear Thresholds for Applications.