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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.

General Routing

  • HQoS - VoQ Statistics issue during scaled configuration with congestion. In scaled HQOS configuration with congestion across all queues due to unavailability of the system level packet buffers, packets are dropped irrespective of the queue priorities. These dropped packets are not to be accounted as part of queue statistics.PR1674669

  • ACX7509: G.8275.1 FPC Dpll status is incorrectly shown in timingd gencfg ptp centralized command. PR1685675

  • On all Junos OS Evolved platforms, when the destination MAC is not in synchronization in the EVPN-MPLS (Ethernet Virtual Private Network- Multiprotocol Label Switching) network, multiple packets for the unknown MAC broadcast traffic get flooded to the PE (Provider Edge) which is the originator of the MAC address.PR1717283

  • For ACX7000 platforms in a scaled setup with SRv6 micro-sid for L3VPN VRFs (~2K) enabled in single commit, few initial VRF might experience traffic outage. PR1726481

  • On ACX7024 devices, 1G ports on the ASIC do not support auto-negotiation and hence it is applicable for both SFP-T and SFP-LX/SX sfp's. Auto-negotiation is enabled in the peer device (specially on the peer SFP-SX/Lx SFP's).PR1749393

  • On Junos OS Evolved platforms, alarmd error is generated upon configuration commit. PR1797233

  • On Junos OS Evolved platforms, when there is Routing Engine switchover due to pfemand crash, it results in FPC (Flexible PIC Concentrator) to be stuck in ONLINING state and traffic impact can be seen. PR1797593


  • DNS resolution is not working for default instance when name server is reachable through mgmt_junos VRF. PR1766212

Interfaces and Chassis

  • On the ACX7024 platform, the tear-down rate is low. This is due to system CPU limitations.PR1659593