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Known Limitations

Learn about known limitations in Junos OS Evolved Release 21.4R2 for PTX Series routers.

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

  • During boot up PTP FPGA link resets which toggles the link, therefore the message Chassis : NG-RE : PCIe Bus Error: severity=Uncorrected (Fatal), type=Transaction Layer, is observed in the console. PR1572061

  • If multiple SIBs are in the offline state and halt the primary Routing Engine, the SIBs can be stuck in the offline state for 15 minutes, before it goes to offline state. PR1584712

  • Whenever interface deactivates, HW counters for SR-TE path related get deleted. Re-adding these paths on enabling the interface might cause loss of counter. Same behavior is observed while deleting one of SR-TE paths in a given SR-TE policy.

    . PR1630517

  • CLI command request system node reboot restarts the FRU ungracefully. On an ungraceful FRU restart, it is expected to see transient link errors on peer FRU. PR1630787

  • Due to limitation in CBC FPGA, no interrupt is generated if Routing Engine mastership daemon stalls and a HW timer-expiry mastership switchover is initiated. Post switchover, a reboot is required on the backup Routing Engine before another switchover. PR1633552

  • The spike in rpd usage is expected because of the very large scale and OCST in general. However, it should not affect any RPD functionality as telemetry streaming is the least priority task in rpd. PR1642756

Network Management and Monitoring

  • Junos OS Evolved has a feature to block/deny all hidden commands. You can get this feature by configuring set system no-hidden-commands. However when this is configured and committed, Junos OS Evolved blocks or denies new netcon or junoscript XML sessions. As a workaround, you can delete system no-hidden-commands configuration statement and start the new netconf or junoscript sessions. PR1590350

User Interface and Configuration

  • Passwordless file copy does not happen through file copy RPC for non-root users when public or private key authentication is setup. PR1627782