The system automatically assigns a default policy stack to a site as part of the default policy configuration. You can't remove the default set from the default stack, the default rules from the set, or the default threshold profile from the rules. Your ability to make changes be limited to editing the actions and thresholds for default policy rules. After you configure a rule, it takes precedence over the default rules based on the order of rules. The default values for media apps are set at latency = 150 ms, packet loss = 2%, and jitter = . For all other Apps, default values are latency = 500 ms, packet loss = 5%, and jitter = 100 ms.

After upgrading an ION device to version 6.3.1 or higher, the system automatically applies the following three default performance policy rules to the site.

1. Default Performance Policy Rule for Action Visibility
   • Intent: This rule uses the Performance SLA (Latency: 150 ms, Packet Loss: 2%, Jitter: 75 ms) to control the threshold lines available under ConfigurationPrisma SD-WANBranch Sites {Site Name}{Circuit Name}{Secure Fabric}.
   • Action: Visibility
   • Performance SLA: Default performance SLA for media apps.
     • Latency: 150
     • Packet Loss: 2
     • Jitter: 75
2. Default Performance policy rule for All Media Apps
   • Intent: This rule attempts to utilize an active path (as listed in the path policy) that meets the conditions of the performance SLA (Latency: 150 ms, Packet Loss: 2%, Jitter: 75 ms), for Audio and Video media apps. If no active paths are compliant, it will use the backup paths.
   • Action: Move Flows
   • Performance SLA: Default performance SLA for media apps.
     • Latency: 150
     • Packet Loss: 2
     • Jitter: 75
   • App Filters: Audio, Video (Transfer Type).
3. Default Performance Policy Rule for All Apps
   • Intent: This rule attempts to utilize an active path (as listed in the path policy) that meets the conditions of the performance SLA (Latency: 500 ms, Packet Loss: 5%, Jitter: 100 ms), for bulk and transactional apps. If no active paths are compliant, it will use the backup paths.
   • Action: Move Flows
   • Performance SLA: Default performance SLA for media apps.
     • Latency: 500
     • Packet Loss: 5
     • Jitter: 100
   • App Filters: Transactional, Bulk (Transfer Type).
   You can edit the default policy SLAs to customize Prisma SD-WAN according to the specific requirements of your network. Default rules are not editable, only the default SLAs can be edited.