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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 defects, use the Juniper Networks online Junos Problem Report Search application.

General Routing

  • On ACX1K/2K platforms, when a lo0.x filter is configured under a vrf type routing-instance, any IPv4 transit traffic that makes ARP request to generate to the CE-facing interfaces will fail in ARP resolution due to the ARP request packets are discard by lo0.x filter if no specific term to accept the IPv4 packets. PR1737999

  • Due to software issue with initialization sequence, the PTP encapsulation does not get applied with PTP configuration on ge interfaces. Because of this, PTP feature is impacted on ge interfaces. PR1755852

  • Some Junos OS Releases from 21.4R3 to 22.4R3, might display the Remote fault state as 'Offline' in show interface by default. PR1764243


  • The default behavior of local reversion has changed from Junos OS Release 16.1 and that impacts the LSPs for which the ingress does not perform make-before-break. Junos OS does not perform make-before-break for no-cspf LSPs. PR1401800