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Known Limitations

Learn about known limitations in this release for EX 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

  • Error logs are expected when routes point to the target next hop, which in turn point to hold next hops. These error logs are present for a short time. Later, when the next hop changes from a hold next hop to valid next hop, unilist next hops will be walked again and updated with the appropriate weight and reroute counters, and no more error logs will be seen. PR1387559

  • On EX2300, EX3400,EX4300-48MP and EX4300, pause frames counters does not get incremented when pause frames are sent.PR1580560

  • Carrier tranistions is not setting properly for channelized ports on non-DUT EX4400-48F for QSFP28-100G-AOC-30M 740-064980 of FINISAR.PR1723924

  • input-vlan-tagged-frames are not in the expected range while verifying VLAN Tagged FramesPR1749391

  • Ex-Hardening:Local/Remote fault insertion from TG is failingPR1789999

  • EVPN VXLAN BGP with BFD timer as 1sec (1000ms) flap when 'ethernet-switching table' is holding 10K MACs with ARP table is holding 5K MAC-IP bindings and attempted a clearing all the MAC table.PR1846781

  • We cannot configure same output interface for multiple port-mirroring/analyzer instance.PR1873269

Infrastructure

  • 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. https://kb.juniper.net/TSB18251PR1568757