Help us improve your experience.

Let us know what you think.

Do you have time for a two-minute survey?


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 QFX5220-32CD, VLANs between 3968 and 4095 are reserved for Layer 3 interfaces by default. So, these VLANs cannot be used for Layer 2 interfaces. There is no commit check added for this purpose. You need to take care of this while configuring VLANs for Layer 2. PR1423468

  • QFX5220-128C :: Tx laser disabled alarm or Rx loss of signal alarm do not turn on or off as expected. Takes long time when Local or remote interface is disabled or enabled.PR1661939