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Open Issues

Learn about open issues in this release for the PTX Series.

For the most complete and latest information about known Junos OS defects, use the Juniper Networks online Junos Problem Report Search application.

General Routing

  • The issue occurs on Junos OS routers and switches, with LACP enabled. Deactivating a remote aggregated Ethernet member link makes the local member link move to LACP detached state and cause traffic drops on that member link. The same scenario applies when you add a new member link and not configure the other end of that link with LACP. PR1423707

  • The script attempts an unsupported configuration and then hits the maximum threshold for the given platform. PR1555159

  • On PTX platforms, when you configure Inline Jflow and set high sampling rate (more than 4000 per second), you might observe high CPU utilization. It might also result in relevant impacts on traffic analysis and billing.PR1569229

  • The issue occurs on ACX, PTX, and QFX platforms (PTX10002, PTX10003, PTX10008, PTX10016, QFX10002, QFX10003, QFX10008, QFX10016, and ACX6360). If you enable protocols l2circuit and channel tcc for providing L2 transaction, IS-IS connection through the L2 domain might fail and cause traffic loss. PR1590387

  • On PTX10002-60C and QFX10002-60C, after a system reboot, you might see the FPC 0 Major Errors alarm due to a rare timing issue. The issue might cause the host path traffic to drop. It is a rare issue and does not always happen during reboot. Perform request vmhost reboot for recovery. PR1613229

  • V6 default route will not get added after successful DHCPv6 client binding on PTX1000 router during ZTP. PR1649576

  • Presence of consistent hash/resiliency feature in the running configuration causes the system to take much longer to converge, in case of a churn. PR1652750

  • You might not receive DHCPACK at ztp-server after zeroize of the device (client). PR1658287

  • You might observe vmcore.lockdown1-fpc1.12.tar on PTX5000. PR1668229

  • Junos OS Release 20.2R1 and later releases have introduced firmware version for PHY chip on some PIC models. After that migration, some of the 100GE ports on PIC or its peer devices would see PCS and framing errors.PR1669267

Routing Protocols

  • If you configure any platforms with Micro BFD on member links of the LAG/aggregated Ethernet interface, BFD Session state in Routing Engine remains as UP always, even though PEER device has ceased.PR1675921