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Open Issues
Learn about open issues in Junos OS Release 22.1R1 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
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On the QFX5130-32CD platform running Junos OS Evolved, you cannot clear or reset the disk option specified in the scheduled
request node reboot
command. The node reboots with the disk option last specified. PR1517596 -
On QFX5700 platforms few interfaces do not come up after removing channelization through single commit, that is by using
delete interfaces
command. PR1592238 -
ON QFX5700, 400G DAC flap might be seen after OIR, FPC restart, device reboot enabling or disabling interface. PR1618488
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On QFX5700 ungraceful removal (OIR) of FPC or an FPC fault might result in a PCIE MAJOR alarm "PCI Uncorrected error on dev 0000:00:03.0" which does not get cleared. The only way to clear this alarm is reboot of the device. There are 2 situations in which this alarm can be seen:
- FPC is faulty: In rare FPC fault cases, the PCI Uncorrected error alarm might be
seen along with FPC going to a fault state as indicated by the
show chassis fpc
command. This is accompanied by other FPC major alarms. Once the faulty FPC is replaced with a good one, the alarm is still seen, and a reboot is required to clear this alarm. Post identification of the fault and FPC replacement, this alarm is harmless, and FPC state can be confirmed through theshow chassis fpc
command. - Ungraceful OIR: The ungraceful removal of FPCs is not recommended on QFX5700. This operation might result in PCI Uncorrected Error alarm. Please use one of the following methods to do a graceful FPC OIR removal:
- Execute the
request chassis fpc slot <slot #> offline
command from the CLI. - Press the Offline Button for 1 second on the FPC to offline the FPC. Once the FPC is gracefully offlined both LEDs - PWR and STS go off. The FPC can be removed at this point.
- FPC is faulty: In rare FPC fault cases, the PCI Uncorrected error alarm might be
seen along with FPC going to a fault state as indicated by the
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400G LR4-10 link does not come up after deleting
disable interface
configuration statement when the port is disabled followed by system reboot. PR1625494 -
Interface convergence time for QFX5220-128C is one min more than earlier. PR1636181
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The output of
show chassis led
does not match the LED behavior. PR1637860 -
If FEC errors are present on the interface and the errors are cleared using the
clear statistics
CLI command and subsequently unified ISSU is performed, then the FEC error counters show up negative or huge value. Subsequently if the FEC errors surpass the previous value, then the counters appear non-negative (smaller value). PR1641583 -
Unexpected carrier transitions are seen on JNP-100G-2X50G-xM after cable plug out and plug in on QFX5130-32CD and QFX5220-32CD. It is observed that the Carrier Transitions counter increments by 1 on cable plug out and by 3 on cable plug in. It must increment by 1 in both cases. PR1642744
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Chef agent support on Junos OS Evolved is EOLed. PR1648066
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For Junos OS Evolved Release 22.1R1 only- if routes are installed on an interface and the interface flaps, the summary count for the given routes does not update from the 'ifdn' or 'iddn' states and the
show route forwarding-table summary
command reports stale summary count data. There is no routing or route state functional impact, only the summary display is impacted by this issue.
Infrastructure
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For Junos OS Evolved Release 22.1R1 - if routes are installed on an interface and the interface flaps, the summary count for the given routes does not update from the 'ifdn' or 'iddn' states and the
show route forwarding-table summary
command reports stale summary count data. There is no routing or route state functional impact, only the summary display is impacted by this issue. PR1653182