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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 Evolved defects, use the Juniper Networks online Junos Problem Report Search application.

General Routing

  • On QFX5700 ungraceful removal (OIR) of FPC or an FPC fault may 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: 1. FPC is faulty: In rare FPC fault cases, the PCI Uncorrected error alarm may be seen along with FPC going to a Fault state as indicated by the 'show chassis fpc' command. This will be accompanied by other FPC Major alarms. Once the faulty FPC is replaced with a good one, the alarm will still be 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 via the 'show chassis fpc' command. 2. Ungraceful OIR: The ungraceful removal of FPCs is not recommended on QFX5700. This operation may result in PCI Uncorrected Error alarm. Please use one of the following two methods to do a graceful FPC OIR removal: a. Execute the "request chassis fpc slot slot #> offline" command from the CLI. b. 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 will go off. The FPC can be removed at this point. PR1620197

  • Layer 2 related daemons - lacpd, ifmand, and arpd - when patched using JSU might cause the Junos OS Evolved devices to not boot up. PR1676132

  • The links are not coming up between two TD4 devices when Auto-negotiation is enabled for DAC cables. Available work-around for this issue is to configure the following set of CLI command on both sides of the links, set interfaces <interface> ether-options no-auto-negotiation.PR1680009

  • On QFX5220-128C, system reboot from CLI, log related to system reboot event might not appear in message log or CLI show log messages | match SYSTEM_REBOOT_EVENT. Users can see the log in journalctl logs. PR1696668

Routing Protocols

  • On Junos OS Evolved platforms like QFX5130 and QFX5700, traffic issues are observed if the number of multicast routes is more than the supported scale for the OISM (Optimized Inter Subnet Multicast) feature. PR1671901

User Interface and Configuration

  • The system might ask for your password when you are trying to save configuration file. PR1665008