SonicOS/X 7 SD-WAN
About Performance Class Objects
A Performance Class specifies the performance criterion for selecting the optimal path. It could be the:
- Best latency/jitter/packet loss among the existing paths.
- Performance Class Object that defines the metric thresholds for latency, jitter and packet loss.
You use SD-WAN Performance Class Objects to configure the desired performance characteristics for the application/traffic categories. These objects are used in the Path Selection Profile to automate the selection of paths based on these metrics. (For a description of SonicOS SD-WAN and its features, see About SD-WAN.)
These are the default Performance Class Objects:
- Lowest Jitter
- Lowest Latency
- Lowest Packet Loss
These default Performance Class Objects cannot be edited or deleted.
You can configure custom performance thresholds that best meet the needs of your application/traffic categories with custom Performance Class Objects. You can include or exclude the Latency, Jitter, or Packet Loss attributes in your custom object, although you cannot exclude all three attributes in the same object. When excluded, the value of that attribute is not used as a criterion or threshold when determining whether a particular path is qualified or not. For example, if you want to evaluate a particular path only on the Latency attribute but you don’t care about the other attributes, you can include Latency and exclude Jitter and Packet Loss in your custom object.
When SonicOS is upgraded to 7.0 from a previous version, all existing custom performance class objects are upgraded with the Include option enabled for Latency, Jitter, and Packet Loss.
| NAME | Name of the Performance Class Object |
| LATENCY (MS) | Threshold time for the round trip delay for the probes sent through a particular path/interface to reach the probe target and acknowledge back, in milliseconds, in milliseconds. For the Lowest Latency Performance Class Object, the time is always LOWEST; for the other default Performance Class Objects, a hyphen (–) displays. |
| JITTER (MS) | Threshold variation in the latency measurements for the probes through a particular path/interface, in milliseconds. For the Lowest Jitter Performance Class Object, the time is always LOWEST; for the other default Performance Class Objects, a hyphen (–) displays. |
| LOSS (%) | Threshold percentage of probes that are missed of the probes sent through a particular path/interface. For the Lowest Packet Loss Performance Class Object, the percentage is always LOWEST; for the other default Performance Class Objects, a hyphen (–) displays. |
| COMMENT |
Displays the comment entered when the Performance Class Object was configured. |
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