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Known Limitations

Learn about known limitations in Junos OS Evolved Release 21.2R1 for 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 the QFX5130-32CD and QFX5700 platforms, the port status LED remains off for a channelized interface, when one of the channels in the channelized port is down or is disabled. The port LED is lit only when all the channels that are part of the port are up. PR1526532

  • All stats in show chassis fpc will be missing as in following root@glenrothes-04> show chassis FPC Temp CPU Utilization (%) CPU Utilization (%) Memory Utilization (%) Slot State (C) Total Interrupt 1min 5min 15min DRAM (MB) Heap Buffer 0 Online. PR1563506

  • On QFX5700 seeing BrcmPlusPfe: SI Set Failed , Port Multi Set Failed error messages after de-channelization of 4x10G and 4X25G channelized interface. PR1569703

  • On QFX5700 platforms local interface traffic statistics are not displayed for layer 2 interfaces or logical interfaces. PR1573443

  • On QFX5700 platforms when configuration of multiple interfaces are modified in a single commit, any CLI command executed immediately to display the hardware/interface status will give an error message error: communication failure with /re0/picd/ . There is however, no functional impact and output will be displayed after sometime. PR1574569

  • On QFX5700 when the FEB card has a power failure the show system alarms CLI command will display the below error PCI Uncorrected error on dev 0000:00:03.2 along with FEB alarm. PR1578066

  • If the input voltage drops or surges, there will not be any alarm generated indicating the voltage is low or high within operating range. However, there is a PSM psm number Input Under Voltage Failure alarm generated when the PSM goes offline due to low voltage.PR1579105

  • On QFX5130 and QFX5700, if packet hits both IPACL and IVACL MF classifiers, due to HW limitation classification will not happen properly. Classification behaviour is undefined in this case. PR1581917

  • During FPGA firmware upgrade, if there is power fluctuation, the entire system goes for a reboot and the FPGA will fallback to the golden image. PR1586282