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Open Issues

Learn about open issues in Junos OS Release 21.3R3 for NFX Series devices.

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

High Availability

  • On an NFX350 chassis cluster, when FPC0 (when node0 is primary) or FPC7 (when node1 is primary) is restarted by either using the request chassis fpc slot slot restart node local command or due to dcpfe core files on the primary, it restarts FPC1 or FPC8. This might break the preexisting TCP sessions and fail to restart the TCP sessions. The TCP sessions might require a manual restart. PR1557607


  • (Applies to an NFX350 device with MACsec on the layer 2 interfaces) After you reboot an NFX350 device or restart the Packet Forwarding Engines on the device, the MACsec connectivity is not established on some of the links.

    Workaround—Delete the layer 2 interface configuration for the affected links and then reconfigure it. PR1640451