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  • Support for 400G ZR DWDM optics (MX2010, MX2020 and MX10K-LC9600)—Starting in Junos OS Release 22.2R1, we support 400G ZR DWDM optics. We support the following 400G ZR features:

    • 75-GHz grid spacing.

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

    • Performance monitoring and Threshold-crossing alert (TCA). 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. 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.

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

  • MPC7 and MPC5 support with SFB3 (MX2010 and MX2020)— Starting in Junos OS Release 22.2R1, we support MPC7 and MPC5 with the SFB3 Switch Fabric Board. The SFB3 interoperates with MPC11.

    [See MX2000 Switch Fabric Board (SFB) Overview.]

  • MPC2E-NG and MPC3E-NG support with SFB3 (MX2010 and MX2020)—Starting in Junos OS Release 22.2R1, we support MPC2E-NG (with ethernet MICs only) and MPC3E-NG (with ethernet MICs only) with the SFB3 Switch Fabric Board. The SFB3 interoperates with MPC11. This feature is supported only on Ethernet MICs.

    [See MX2000 Switch Fabric Board (SFB) Overview .]

  • Custom multipliers for longer LACP hold times (PTX1000, PTX5000, PTX10002, PTX10008, and PTX10016)—Starting in Junos OS Release 22.2R1, you can configure an LACP hold time that is up to 30 times the periodic interval. When the hold time expires, Junos OS deletes the adjacencies, which results in traffic loss. Use a longer hold time for a peer upgrade to run seamlessly without any traffic loss.

    To configure the Junos OS multiplier to calculate the hold time, use the multiplier statement at the [edit interfaces ae aggregated-ether-options lacp] hierarchy level.

    See [lacp (Aggregated Ethernet.]