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Known Limitations

Learn about limitations in this release for ACX Series routers.

For the most complete and latest information about known Junos OS Evolved defects, use the Juniper Networks online Junos Problem Report Search application.

General Routing

  • Powering up and configuring data path of 400G-ZR and 400G-ZR-M optics is not instant and takes more time comparatively with other optics. So, user has to wait enough time before switching to new speed configuration. If user switches from one speed to other speed without waiting leads to interface down. PR1635443

  • For ACX7100-32C and ACX7100-48C platforms, increase the Performance Monitoring (PM) Engine polling interval from one every 2 and 4 seconds, respectively, to 1 per second for both platforms.PR1670033

  • Multiple evo-pfemand restarts in quick succession is not recommended. Quick succession (back-to-back CLI command execution) results in undefined behaviour. With in five minutes, beyond three restarts are not allowed.

    . PR1728059