Junos Telemetry Interface

[For sensors, see Junos YANG Data Model Explorer.]

Real-time hardware resource monitoring (QFX5130, QFX5130-48C, QFX5130-48CM, QFX5130E-32CD, QFX5220-32CD, QFX5220-128C, QFX5230-64CD, QFX5240-64OD, QFX5240-64QD, and QFX5700)—You can monitor hardware resource utilization statistics in real time for efficient capacity planning. The Junos telemetry interface (JTI) streams NPU resource utilization statistics through gRPC and the gNMI transport from a device to an external collector.

[See https://www.juniper.net/documentation/us/en/software/junos/interfaces-telemetry/topics/concept/junos-telemetry-interface-grpc-sensors.html, https://www.juniper.net/documentation/us/en/software/junos/cli-reference/topics/ref/statement/sensor-edit-services-analytics.html, and Junos YANG Data Model Explorer.]

Telemetry and SNMP support for network counters and buffer usage (QFX5230-64CD, QFX5240-64OD, and QFX5240-64QD)—This feature introduces telemetry streaming and SNMP support for explicit congestion notification (ECN), priority-based flow control (PFC) counters, and ingress buffer usage. Monitor the MAC Priority Flow Control Statistics, ECN Marked Packets, and Ingress Resource Errors counters using fields in the /state/interfaces/interface/counters/ sensor. Track the Egress Priority Group Peak Buffer Occupancy statistics with the /junos/system/linecard/qmon-sw/ sensor. The feature introduces SNMP support for these statistics using the respective fields.

• In the /state/interfaces/interface/counters/ sensor:

  • MAC Priority Flow Control Statistics:

    • /state/interfaces/interface[name=' ']/counters/pfc[priority=' ']/priority

    • /state/interfaces/interface[name=' ']/counters/pfc[priority=' ']/in-pkts

    • /state/interfaces/interface[name=' ']/counters/pfc[priority=' ']/out-pkts

  • ECN Marked Packets:

    • /state/interfaces/interface[name=' ']/counters/errors/out-ecn-ce-marked-pkts

  • Ingress Resource Errors:

    • /state/interfaces/interface[name=' ']/counters/errors/in-resource-drops

• In the /junos/system/linecard/qmon-sw/ sensor:

  • Egress Priority Group Peak Buffer Occupancy:

    • /cos/interfaces/interface[name=' ']/priority-groups/priority-group[pg=' ']/peakBufferOccupancy

SNMP support is introduced with the following fields:

• MAC Priority Flow Control Statistics:

  • JnxCosPfcPriorityTable (jnxCosPfcPriorityRequestsTx & JnxCosPfcPriorityRequestsRx)

• ECN Marked Packets:

  • IfJnxTable (ifJnxOutEcnMarkedPackets)

• Ingress Resource Errors:

  • IfJnxTable (ifJnxInQDrops)

[See Junos YANG Data Model Explorer and https://www.juniper.net/documentation/us/en/software/junos/netconf/topics/concept/yang-junos-modules-overview.html.]

Configuring IP source address for legacy gRPC dial-out connections (QFX5230-64CD, QFX5240-64OD, QFX5240-64QD)—Set a source IP address and routing instance for legacy gRPC service dial-out connections. Previously, the outgoing interface IP address was used as a source address without an option to configure a source IP address. This feature supports FLEX deployments, enabling dial-out from a specified IP address or interface (such as a loopback0 address). Use the routing-instance and local-address statements at the [edit services analytics export-profile profile-name] hierarchy level.

[See https://www.juniper.net/documentation/us/en/software/junos/cli-reference/topics/ref/statement/local-address-edit-services-analytics-export-profile.html, https://www.juniper.net/documentation/us/en/software/junos/cli-reference/topics/ref/statement/export-profile-edit-services-analytics.html, https://www.juniper.net/documentation/us/en/software/junos/cli-reference/topics/ref/statement/routing-instance-edit-services-analytics-export-profile.html, and https://www.juniper.net/documentation/us/en/software/junos/interfaces-telemetry/topics/topic-map/telemetry-grpc-dialout-ta.html]

IPv4 and IPv6 traffic statistics telemetry (QFX5230-64CD, QFX5240-64OD, and QFX5240-64QD)—This feature supports streaming of IPv4 and IPv6 transit statistics using the native resource paths /state/interfaces/interface[name=' ']/counters/ipv4/ and /state/interfaces/interface[name=' ']/counters/ipv6/. The exported fields include in-pkts, in-bytes, out-pkts, and out-bytes. To enable transit statistics for the physical port, configure route accounting by including the route-accounting statement at the [edit forwarding-options family family-name] hierarchy level.

[See Junos YANG Data Model Explorer and https://www.juniper.net/documentation/us/en/software/junos/cli-reference/topics/ref/statement/route-accounting-edit-forwarding-options.html.]

[For a complete list of all other sensors available in the above sensor path, see Junos YANG Data Model Explorer.]

[See Junos YANG Data Model Explorer.]