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Key Features in Junos OS Evolved Release 22.1

Start here to learn about the key features in Junos OS Evolved Release 22.1. For more information about a feature, click the link in the feature description.

  • Packet Forwarding Engine pipeline sensors (PTX10001-36MR, PTX10008, and PTX10016)—Junos OS Evolved Release 22.1R1 introduces support for pipeline sensors with JTI. The pipeline sensors provide telemetry device monitoring by delivering NPU and ASIC counters from a device to an outside collector. The four packet and drop counter categories are interface, lookup, queueing, and host interface. Subscribe to the resource path /components/component/integrated-circuit/pipeline-counters to export all pipeline counters, or use /components/component/integrated-circuit/pipeline-counters/packet/ or /components/component/integrated-circuit/pipeline-counters/drop/ to provide packet-only or drop-only counters.

    The pipeline sensors support both zero-suppression and initial sync. The zero-suppression feature streams only non-zero values. The initial sync (init-sync) feature streams all values once after the initial subscription. This one-time-only bucket of values includes zero values even if zero-suppression is enabled.

    You can use native (UDP) and Juniper proprietary gRPC and gNMI to stream counters.

    [See Telemetry Sensor Explorer and sensor (Junos Telemetry Interface).]

  • Synchronous Ethernet with ESMC support (PTX10001-36MR)

    [See Synchronous Ethernet Overview and Ethernet Synchronization Message Channel (ESMC).]

  • Support for 400G ZR-M DWDM optics (PTX10001-36MR)—

    Starting in Junos OS Evolved Release 22.1R1, we support 400G ZR-M DWDM optics. 400G ZR-M is a new variant optics that functions similar to the existing 400G ZR. 400G ZR-M enables flat architecture, simple, and Point to Point (PtP) DWDM system. We support the following features as part of 400G ZR-M:

    • Support for 6.25, 75, 100 grid spacing.

    • Support for optical loopbacks. To enable optics loopback, use the existing loopback statement at the [edit interfaces optics-options] hierarchy level.

    • Support for performance monitoring and TCA. TCAs provide the management system an early indication of the deteriorating health of an optical network connection when the performance parameter that you monitor crosses a certain threshold. You can view the current and historical performance monitoring metrics which are accumulated into 15-minute and 1-day interval bins by using the show interfaces transport pm command. You can thus manage optical transport link efficiently.

    [See optics-options, show chassis hardware, show interfaces, show interfaces diagnostics optics, show chassis pic, and show interfaces transport pm .]

  • Support for SDN-based network interconnects (PTX10004, PTX10008, PTX10016)—Starting in Junos OS Evolved Release 22.1R1, you can configure certain PTX device interfaces to pass traffic towards an SDN controller. You do this using firewall filters to match and redirect packets defined at the [edit services inline-monitoring instance name controller] hierarchy level. Supported match criteria includes IPv4, IPv6, and family any (destination), VLAN ID, and certain traceroute redirect packets.

    [See Controller.]