Juniper AAA Model streaming telemetry support for subscriber services for JTI

The diameter application protocols Network Access Server Application (NASREQ), policy and charging rules function (PCRF), and Online Charging System (OCS). There are also new diameter peer sensors that provide response time measurements for messages exchanged between an device and the peer for each of the diameter applications. Statistics are exported using Junos telemetry interface (JTI) and the Juniper AAA Model, which covers telemetry export using remote procedure calls (gRPC), gRPC Management Interface (gNMI), or Juniper proprietary RPC or UDP.

To stream diameter application statistics, include the resource paths in a subscription or using the sensor configuration statement:

• For NASREQ statistics, /junos/system/subscriber-management/aaa/diameter/clients/nasreq
• For PCRF statistics, /junos/system/subscriber-management/aaa/diameter/clients/gx
• For OCS statistics, /junos/system/subscriber-management/aaa/diameter/clients/gy

To stream response time measurements for the diameter applications, include the resource paths in a subscription or using the sensor configuration statement:

• For NASREQ measurements, /junos/system/subscriber-management/aaa/diameter/ peers/peer[peer_address='peer-address']/nasreq/response-time
• For PCRF measurements, /junos/system/subscriber-management/aaa/diameter/ peers/peer[peer_address='peer-address']/gx/response-time
• For OCS measurements, /junos/system/subscriber-management/aaa/diameter/ peers/peer[peer_address='peer-address']/gy/response-time

To enable these statistics for on devices for native (UDP) export, include the sensors statement at the [edit services analytics] hierarchy level.

To provision the sensor to export data through gNMI, use the Subscribe RPC defined in the gnmi.proto to specify request parameters.

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