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Known Limitations

Learn about known limitations 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

  • During software validation, Junos OS mounts the new image and validates the configuration against the new image. Since the TVP-based QFX platforms (QFX5000 and QFX10000) are already mounting the maximum 4 disks during normal execution it cannot mount the extra disk for this purpose. Thus QFX currently does not support configuration validation during upgrade on QFX5000 so the syntax error appears when the image installation is triggered with validation. PR1421378

  • Higher than expected loss and traffic null routes are seen during node failures with node protection on FTI interfaces for RSVP LSPs. PR1456350

  • PFC is not supported across the FPCs with the HGOE VCPs. PR1709186

  • Dot1x daemon read the configuration whenever there is change in time based license for the feature macsec. PR1713881

Infrastructure

  • When upgrading from releases before Junos OS Release 21.2 to Release 21.2 and onward, validation and upgrade might fail. The upgrading requires using of no-validate configuration statement. PR1568757