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CPU and NPU Sensor Support for MX Series Routers with MPC10E-15C-MRATE Line Cards

Junos OS Release 19.3R1 supports CPU and network processing unit (NPU) sensors on MX Series routers with MPC10E-10C-MRATE and MPC10E-15C-MRATE line cards. Junos Telemetry enables the export of statistics from these sensors to outside collectors at configurable intervals using gRPC services.

Unlike the Junos kernel implementation for the CPU and NPU sensors in previous Junos releases, this feature uses the OpenConfig AFT model. Because of this, there is a difference in the resource path and key-value (kv) pair output compared to the Junos kernel output.

Use the following resource path to export statistics:

  • /junos/system/linecard/cpu/memory/

  • /junos/system/linecard/npu/memory/

  • /junos/system/linecard/npu/utilization/

To provision the sensor to export data through gRPC services, use the telemetrySubcribe RPC to specify telemetry parameters. Streaming telemetry data through gRPC requires the OpenConfig for Junos OS module.

For more information about resource paths, see Explore Sensor Paths.