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Open Issues

Learn about open issues in this release for ACX 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.


  • On all platforms, MAC-IP route deletion and addition are triggered when re-ARP (Address Resolution Protocol) on MH (Multihoming) device fails in the EVPN-MPLS multihoming scenario resulting in traffic drop. PR1691132

General Routing

  • A restart of DHCP takes more time because of internal issues with the SIGTERM event. PR1610229

  • In ACX7509, after multiple FPC online ot offline, FPCs go to fault statePR1616227

  • ACX7509- Ungraceful removal (OIR) of FPC or an FPC fault might result in PCIE MAJOR alarm PCI Uncorrected error on dev 0000:00:03.0 which does not get cleared.PR1620197

  • If an FEB goes to fault state due to a power-fault (real or artificially triggered for testing), then the subsequent FEB offline can take a few minutes (instead of completing within a minute for a normal offline). There is no other collateral due to this. A FEB online subsequent to the delayed offline works normally and the FEB becomes fully functional again.PR1671719

  • ACX7100-48L :: 400g-ZR-M link is not up between ACX7100-32C and ACX7100-48L due to optics over temperature shutdown. PR1698342

  • Interface command gives truncated outputs, reponse stuck and statistics is not displayed when unrelated FPC is restarted. PR1698532

  • On Junos OS Evolved Platforms, any UI (user interface) set (configuration, script, license) changes done post software addition are being lost after the subsequent reboot.PR1699699

  • Junos OS Evolved: ACX: [Error] RT : Cleaning up 1 ACKs without processing. Root cause: The ACKs initially not handled as they had been implemented in the PI section. Issue arises due to ACKs not being transferred to the Upper Layers for all the routes specified. PR1713005

User Interface and Configuration

  • The system might ask for your password when you are trying to save configuration file.PR1665008