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Known Limitations

Learn about limitations 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

  • The error messages Supercon-core 0000:xx:xx:x: Supercon scratch are observed in the boot log of backup Routing Engine. The errors are observed only during booting of backup Routing Engine and do not have any functional impact. These messages should be ignored. PR1594136

  • A portion of the G.8273.2 test for PTP to PTP and PTP to 1PPS noise transfer fails on ACX7100-32C. PR1611838

  • syncE to PTP and syncE to 1pps noise transfer tests fail for frequencies on ACX7100-32C 1. 0.00781 HZ 2. 0.01563 HZ 3. 0.03125 HZ 4. 0.06156 HZ 5. 0.12313 HZ.PR1611911

  • 400G DAC flap might be seen after OIR, FPC restart, device reboot, enabling or disabling interface. PR1618488

  • When the original flow egresses out through an aggregated Ethernet interface, the corresponding sampled sflow frame does not reflect the correct egress port number. This happens only when the flow is egresses out through an aggregated Ethernet interface. For non-aggregated Ethernet egress interface, this works fine and the sflow frame reflects the correct egress port.PR1647870

  • ACX7024: With high scale of L3VPN VRF instances system CPU usage might continue to be high.PR1655310

  • When test agents participating to UDP measurement are close by and time is not well synchronised, reporting results is paused due to measured negative one way delay.PR1684358

  • One lo0 filter entry is added implicitly when ine or /inet6 family is added for each non-zero lo0 logical interfaces (lo0.1, lo0.2 etc). The implicit filter entries also take up shared TCAM banks and can reduce the SnP claimed scale.PR1691120

  • When testing for Class-C performance using channelised 50g interface speed with 100g and 25g as other port, the average cTE marginally exceeds the Class-C mask.PR1695674