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Known Limitations

Learn about known limitations 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 the ACX710 router, the PTP Servo status shows holdover during transition between virtual port and PTP. PR1510880

  • On the ACX710 router, the SyncE to 1PPS transient test results do not meet G.8273.2 SyncE to 1PPS transient metric. PR1522796

  • On the ACX710 router, T1 or T4 cTE should be tuned closer to two-way CTE. PR1527347

  • On the ACX5448 router, there is a two-way time error and CTE for 1PPS does not meet the class A metrics. PR1535434

  • On the ACX710 router, changing the PTP profile type from g.8275.1 to g.8275.2 requires the Packet Forwarding Engine to reboot and the clksyncd process to restart. As a workaround, you must reboot the Packet Forwarding Engine and restart the clocking process before you change the profile. PR1546614

  • On the ACX710 router, the clock parameters are incorrect in certain scenarios when the Servo is in the FREERUN state. PR1548192

  • The ACX5448 router as TWAMP server delays the start session acknowledgment by 10 seconds. PR1556829

  • On the ACX5048 router, the ISSU upgrade fails due to the Packet Forwarding Engine restart issue . PR1554915