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Known Limitations

Learn about limitations in this release for the QFX Series switches.

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

  • On QFX5700, 400G DAC flap might be seen after OIR, FPC restart, device reboot, enabling or disabling interface. PR1618488

  • On QFX5220-32CD, evo-pfemand core file is seen after unified ISSU upgrade through automated script. This happens because vendor sdk fails to warmboot and so evo-pfemand generates core files. In this scenario, evo-pfemand restarts and service resumes. There is impact to traffic until evo-pfemand initialisation completes.