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Open Issues

Learn about open issues in this release for QFX Series switches.

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

General Routing

  • QFX10000 platform drops the Veritas CFS heartbeat , as result the Veritas CFS cannot work. PR1394822

  • On QFX5100 platforms (both stand-alone and VC scenario) running Junos, occasionally during the normal operation of the device, PFE (Packet Forwarding Engine) can crash resulting in total loss of traffic. The PFE reboots itself following the crash.PR1679919

  • When the remote end server/system reboots, QFX5100 platform ports with SFP-T 1G inserted may go into a hung state and remain in that state even after the reboot is complete. This may affect traffic after the remote end system comes online and resumes traffic transmission.PR1742565

  • In a QFX51200-48YM-8C VC setup, after a a primaryship switch over fan tray of linecard might not be displayed in show chassis hardware and show chassis environment. There is no functional impactPR1758400

  • On an Ethernet Virtual Private Network (EVPN) / Virtual eXtensible Local-Area Network (VXLAN) scenario, after removing an Aggregated Ethernet (AE) Interface along with its associated physical interface on a QFX5000 series device and then applying any configuration to the physical interface, the fxpc process crashes and the device undergoes an automatic reboot.PR1783397

  • On Junos QFX5100 and EX4600 Platforms, high storage Utilization is observed in /var/log due to uncompressed UKERN_GBL.log file. This can lead to low storage warnings and potential write errors for other system logs during that period.PR1804090

  • On all Junos QFX5000 platforms, traffic loss happens and the Layer 3 interface cannot be deleted when many routes use the same layer 3 interface. QFX5000 is encapsulating the packets with the wrong DMAC(destination MAC ) and VNID(virtual network identifier) for a few IP addresses after disabling the interface.PR1808550

  • QFX10002-60C platforms might not send back ICMPv4/v6 reply packets properly due to defects leading to misprogramming of hardware. Ping with v4/v6 from another device to the QFX10002-60C platform will fail. PR1827286

  • A memory corruption issue can result random dcpfe (dense concentrator packet forwarding engine) process crashes on specific Junos QFX platforms configured with VXLAN (Virtual Extensible Local Area Network) configuration.PR1856424

  • On QFX10008 and QFX10016 , IFL memory is not freed on non-local interface of FPC during configuration changes (eg: IFL delete/deactivate) for L3IFL/L2IFL on AE/Scalar interfaces. Fix is present in common code and risky. It is a day one issue and the per IFL leak is minimal (0.00016% of total Kernel heap size). PR1884163

High Availability (HA) and Resiliency

  • Graceful Routing Engine Switchover (GRES) not supporting the configuration of a private route, such as fxp0 , when imported into a non-default instance or logical system. Please see KB https://kb.juniper.net/InfoCenter/index?page=content&id=KB26616 resolution rib policy is required to apply as a work-around. PR1754351

Routing Protocols

  • If the file size is too small and the amount of traceoptions volume is too high it can cause scheduler slips and operational impact. PR1815837

User Interface and Configuration

  • On all Junos platforms, configuration changes using Python script in ZTP does not work and leads to errors. The following errors are seen: warning: [edit system scripts op allow-url-for-python] not enabled >>> error: The remote op script execution not allowed. PR1718692

  • ZTP upgrade in dual RE fails if the image name has special characters. PR1851232