Sampling Data

Original Data

Telemetry collects data from the forwarding, control, and management planes of network devices. Currently, the data that can be collected includes interface traffic statistics, CPU usage, and memory usage.

The Telemetry push mode enables network devices to periodically push data to the NMS, avoiding repeated query and improving monitoring performance. Figure 1 shows the push process.

Figure 1 Sampling process in telemetry push mode

Data Model

Telemetry collects data based on the YANG model.

YANG is a data modeling language developed to define configuration data modules, status data models, RPC models, and notification mechanisms for transmission protocols.

For more information, see YANG Model Introduction.