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Chassis

  • Packet Forwarding Engine-level recovery to support fabric resiliency (PTX10004, PTX10008, and PTX10016)—Starting in Junos Evolved Release 23.4R1, we've enhanced the fabric resiliency feature support by including a recovery configuration with Packet Forwarding Engine restart. Before you enable the enhanced fabric recovery at the Packet Forwarding Engine level, you must disable the default Packet Forwarding Engine restart action. To disable the default action, use the set chassis fabric event reachability-fault actions pfe-restart-disable command. To view the result of the configuration, run the show chassis fabric reachability detail command.

    [See reachability-fault, show chassis fabric reachability, and Fabric Resiliency.]

  • Support to monitor 100G, 400G optics temperature (PTX10004, PTX10008, and PTX10016)—Starting in Junos OS Evolved Release 23.4R1, we support the following EM-related features:

    • 100G and400G optics firmware, which triggers optics shutdown when the high-temperature threshold is breached.
    • Use of the set chassis temperature-threshold command to optionally support the threshold configuration for optics temperature sensors.
    • Explicit disabling of the EM policy on WAN ports. By default, the EM policy is enabled on all 100G and 400G. optics interfaces other than optics with DAC cables.Use the set chassis fpc fpc_slot pic pic_slot port port_no no-temperature-monitoring command to explicitly disable the EM policy on specific WAN ports.
    • The following output is displayed in show log messages command output when you enable no-temperature-monitoring: PICD_OPTICS_EMPOLICY_NOTIFICATION: et-1/0/29: Optics Temperature monitoring is disabled.

      [ See threshold and no-temperature-monitoring.]

  • Platform and resiliency support (PTX10001-36MR, PTX10004, PTX10008, and PTX10016) – Starting in Junos OS Evolved Release 23.4R1, we support:
    • Major and minor alarms and repair during operational and diagnostic image bootup.
    • Lane remapping if a lane fails and hard repair information is preprogrammed.
    • Repair in bootup images when enabled.
  • Optics temperature monitoring and fan speed adjustment (PTX10001-36MR)—Starting in Junos OS Evolved Release 23.4R1, we support the EM policy to monitor 100G and 400G optics temperature sensors in PTX series devices. The support for the EM policy includes:
    • 100G, 400G optics firmware, which triggers optics shutdown when the high-temperature threshold is breached.

    • Use the set chassis temperature-threshold command to optionally support the fan speed adjustment for optics temperature management.

    • Use the set chassis fpc fpc_slot pic pic_slot port port_no no-temperature-monitoring command to explicitly disable the EM policy on specific WAN ports.
    • The following output is displayed in show log messages command output when you enable no-temperature-monitoring: PICD_OPTICS_EMPOLICY_NOTIFICATION: et-1/0/29: Optics Temperature monitoring is disabled.
    • By default, the EM policy is enabled on all 100G, 400G optics interfaces other than optics with DAC cables. [See threshold and no-temperature-monitoring.]

  • IPv6 support for protocols (PTX10001-36MR, PTX10003, PTX10004, PTX10008, and PTX10016)—Starting Junos OS Evolved Release 23.4R1, PTX series devices support IPv6 for SSH, Telnet, SCP, FTP, NETCONF over SSH, TLS, telemetry, and apps over gRPC.

    [See Junos Telemetry Interface User Guide.]

  • Source Redundancy and Feed Redundancy support on PTX10004 and PTX10008–Starting in Junos OS Evolved Release 23.4R1, N+1 power redundancy is supported on PTX10004 and PTX10008 routers with JNP10K-PWR-AC3 power supply modules (PSMs). You can enable either source redundancy or feed redundancy for the PSM.

    [See Managing Power.]

  • Resiliency support (PTX10004 and PTX10008) –Starting in Junos OS Evolved Release 23.4R1, the FRU resiliency support is provided on the PTX10004 and PTX10008 platforms with JNP10K-PWR-AC3 PSMs.

    [See Fabric Resiliency.]