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Known Limitations

Learn about known limitations in this release for EX Series switches.

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

Infrastructure

  • When upgrading from Junos OS releases prior to Junos OS Release 21.2 and later, the validation and upgrade might fail. The upgrade requires using the no-validate option to complete successfully. PR1568757

Platform and Infrastructures

  • On EX4650 devices, one VLAN can be mapped to only on ERPS ring. For example, VLAN 100 can be mapped to only one ERPS ring. This same VLAN 100 cannot be part of another ERPS ring on the same switch. PR1732885

  • On EX4400-48F devices, the input-vlan-tagged-frames are not in the expected range while verifying the VLAN Tagged Frames. PR1749391

Virtual Chassis

  • The EX4400 device supports multiple uplink modules. Some supports VC port conversion and some doesn't and hence, the recommended procedure is to convert VC port to NW port first and then make sure uplink module is made offline using the request chassis pic fpc command before removal. PR1665242