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Known Limitations

Learn about known limitations in this release for the PTX Series.

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

General Routing

  • On all Junos OS platforms, agentd process crash will be seen in telemetry streaming longevity test. PR1647568

  • On PTX10002, all odd ports have a WAN re-timer connected to it , which might introduce more time during fault recovery, such as LocalFault clear. Therefore, sometimes even if the fault is of the order of milliseconds, the port might still get hold-time expired and flap when the configured hold-time down less than 3s. The behavior is confirmed as hardware limitation.PR1687092

  • P2MP RSVP Phase 2 MTS : Per Packet Load Balancing is not working as expected in VPTX 5000. PR1712824


  • When upgrading from releases before Junos OS Release 21.2 to Release 21.2 and onward, validation and upgrade might fail. The upgrade requires using the 'no-validate' option to complete successfully.

Routing Protocols

  • The rpd process crashes and generates a core file if 100 transport-classes are configured. PR1648490