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Diameter Application Protocol And Diameter Peer Sensors For Subscribers

JTI supports streaming statistics for subscribers for 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 MX router and the peer for each of the diameter applications. Statistics are exported using JTI and the Juniper AAA Model, which covers telemetry export using gRPC, gNMI, or Juniper proprietary RPC or UDP.

To stream diameter application statistics, include the resource paths:

  • 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 an MX Series router 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.

Junos OS Release 19.3R1 supports diameter application protocol sensors for MX5, MX10, MX40, MX150, MX204, MX240, MX480, MX960, MX2008, MX2010, MX2020, MX10003, MX10008, and MX100016 routers.

For more information about gRPC and gNMI resource paths, see Guidelines for gRPC and gNMI Sensors (Junos Telemetry Interface).