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Open Issues

Learn about open issues in Junos OS Release 22.1R2 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

  • Due to BRCM KBP issue, route lookup might fail. PR1533513

  • On ACX platforms, traffic issue might occur with downstream devices when you configure the Precision Time Protocol (PTP) (G.8275.1 PTP profile) along with PHY timestamping and Multiprotocol Label Switching (MPLS) terminated on 10G interface. The transit PTP IPv4 packets gets updated with an incorrect Correction Factor(CF). Disable the PHY stamping to fix the issue but disabling might impact the PTP performance. PR1612429

  • On ACX5448 devices with VM Host-based platforms, starting with Junos OS 21.4R1 release or later, ssh and root login are required during installation to copy the line card image from Junos VM to Linux host during installation. Use the deny-password command instead of the deny command as the default root-login option under the ssh configuration to allow internal trusted communication. PR1629943

  • ACX5448 devices running any prior version of Junos OS release 22.2 does not support the Hierarchical-scheduler (HQOS) on MPLS (Core facing) interface . Enabling HQOS on MPLS Core facing interface causes unexpected traffic forwrading behavior. PR1630086

  • ACX5048 and ACX5096 devices does not support interface speed 10m on 1G interface. PR1633226

  • On ACX5448 and ACX710 devices, all types of delegated BFD sessions configured on routing-instance other than the default routing-instance might not come up.PR1633395

  • Convergance time might be more than 60 seconds for the IS-IS TILFA Node protection testing. PR1634033

  • On ACX5000 devices, in VPLS MH cases, the standby UNI ifl in the backup router gets programmed in the Disable state by adding the UNI interface to invalid the VPN ID in hardware. During switch over, the UNI ifl gets deleted and added under the VPLS instance VPN ID. In issue case, UNI interface added under the invalid VPN ID in the backup router tries to get deleted by passing the VPLS instance VPN ID, causing the issue. .PR1665178

  • On all Junos platforms, incorrect sensor base telemetry data gets collected when you configure multiple SR-TE tunnels with at least one uncolored, sharing the same single hop segment list.PR1665943

  • On ACX710 and ACX5448 devices, when you configure the inline Bidirectional Forwarding Detection (BFD) session, the Packet Forwarding Engine (PFE) might crash and impact the service. PR1667129

  • VMX crashes as result of riot out of memory condition, reporting Interrupted thread 30 TTP transmit. The memory leaks when checking the RSI for pool-0 values. PR1669261