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Open Issues

Learn about open issues in this release for PTX 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.

Class of Service

  • If classifier/rewrite has imported rules from a parent, and has its own rules on top of it. If the import is deleted, the imported rules are not cleaned up. This applies to both rules that add to the parent's base rules, and to those rules that overwrite the parent's base rules. PR1787101

General Routing

  • Some of the frequencies shall be failing performance for PTP-PTP and PTP-1PPS. PR1624478

  • Below is the expected performance for this 21.4. Profile Freq (Hz) NoiseTransfer_0_00391_Results PASS PASS NoiseTransfer_0_00781_Results FAIL FAIL NoiseTransfer_0_01563_Results FAIL FAIL NoiseTransfer_0_03125_Results FAIL FAIL NoiseTransfer_0_06156_Results FAIL FAIL NoiseTransfer_0_12313_Results FAIL FAIL NoiseTransfer_0_24625_Results PASS PASS NoiseTransfer_0_4925_Results PASS PASS NoiseTransfer_0_985_Results PASS PASS NoiseTransfer_1_985_Results PASS PASS NoiseTransfer_3_985_Results PASS PASS NoiseTransfer_7_985_Results PASS PASS. PR1624502

  • Layer 2 related daemons - lacpd, ifmand, and arpd - when patched using JSU might cause the Junos OS Evolved device to not boot up. PR1676132

  • G.8273.2 Synce to PTP and SyncE to 1PPS transient response test fails. PR1681527

  • Class B performance as per G.8273.2 fails for SyncE to PTP and SyncE to 1pps Noise transfer for lower frequencies. PR1681884

  • In high scaled (beyond 14,000 sg routes - 7000 ipv4 and 7000 ipv6 )NGMVPN SPMSI scenarios, core might be seen on PTX10003 platforms due to memory getting exhausted. PR1708454

  • On Junos OS and Junos OS Evolved platforms, the dcpfe (Dense Concentrator Packet Forwarding Engine) process crash will be observed due to memory fragmentation issue. This is a very rare case and would impact traffic as due to dcpfe failure the PFE restarts, so the interfaces will flap. PR1711860

  • On all Junos OS and Junos OS Evolved platforms BGP traceoptions configuration will have an impact on the CPU, threads will be busy and will take time to recede in spite of disabling it. It is important we enable a specific trace flag and disable it when the CPU goes high. It is also important not to perform switchover and other triggers which can add load to the CPU during traces are enabled. Traces must be enabled discretely. PR1724986

  • On all Junos OS Evolved platforms, VMcores are seen when MACsec (Media Access Control Security) key-chains and BGP(Border Gateway Protocol) configurations are applied through Netconf. PR1732611

  • On PTX10000 Junos OS Evolved platforms, the FPC MEZZ board state becomes unknown with Too many open files error messages due to an FD (File Descriptor) leak in picd (Physical Interface Card Daemon) process. PR1738854

  • On all Junos OS Evolved platforms configured with SR-ISIS and with gRPC/gNMI telemetry, subscription to the path: /junos/services/segment-routing/sid/usage/ will not work and the output could not be proper. The issue could happen only in scaled configuration (approximately, 4000 or more per-sid ingress sensors and 4000 or more IPv4/IPv6 per-sid egress sensors are configured).PR1745615

  • On all Junos OS Evolved PTX10008, PTX10004, and PTX10016 platforms, when a fan-tray is removed followed by an insertion, it leads to fan-tray failures.PR1767111

  • On Junos Evolved OS PTX10001-36MR with coherent optics QSFP56-DD-400G-ZR-M, QSFP56-DD-400G-ZR or QSFP56-DD-400G-ZR-HP, if the optics present in the first three ports draw combined power of 50w or more the power rail will experience fault, resetting the Control Board (CB) and Flexible PIC Concentrators (FPC). The entire device traffic will be impacted when CB and FPC go for a reset.PR1775320

  • Both SIB PWR/STAT H/W LEDs become Unlit/OFF by Routing Engine switchover on PTX10004, PTX10008, PTX10016 Junos OS Evolved platforms. PR1749781

  • On all Junos Evolved PTX platforms, RIB (Routing Information Base) and FIB (Forwarding Information Base) tables are not synchronized properly, causing the P2MP (Point-to-Multipoint) LSP (label-switched-path) traffic outage when executing the CLI command clear rsvp session.PR1757635

  • On Junos OS Evolved platforms, duplicate IPv4 address detection error is not logged on syslog. PR1775981

Infrastructure

  • Symptom request routing-engine login other-routing-engine failure Root Cause evo_ssh did not have an internal port defined Exposed versions: with fix of 1693858 evo:20.4R3-S6-EVO evo:21.2R3-S4-EVO evo:22.2R2-S1-EVO evo:22.2R3-EVO evo:22.3R2-EVO evo:22.4R1-EVO evo:22.4R2-EVO evo:23.1R1-EVO junos:22.3R2. PR1712705

MPLS

  • Trace route in MPLS OAM on SR over IPv6 may fail in ECMP case if Junos OS Evolved box is in topology. This is because linux kernel in Junos OS Evolved puts an auto flow label on every IPv6 packet. This flow label is transparent to daemon process, which uses a null value for it and calculates the NH details. PFE however takes the flow label into account and calculates the NH details. This difference in calculation of NH details leads to a mismatch in the path the packet takes to the destination and can cause trace route to fail. PR1710285

Routing Policy and Firewall Filters

  • Family-Any support is available only from 22.4-Junos OS Evolved. Only Inet6 family is supported previous to that release. PR1740412

  • On all Junos OS Evolved platforms, the firewall policer rate, bandwidth limit, committed-information-rate, peak-information-rate, burst-size-limit are increased through this PR.PR1743233

  • Maximum configurable value of policer if-exceeding bandwidth-limit is 100Gbps on PTX10004 Junos Evolved OS. It is 25.6Tbps on PTX10001-36MR, PTX10008 and PTX10016 platforms. PR1798975