Open Issues
Learn about open issues in this release for EX Series switches.
For the most complete and latest information about known Junos OS defects, use the Juniper Networks online Junos Problem Report Search application.
Network Management and Monitoring
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Device schema leaf may not populate the appropriate values through jvision/telemetry. PR1726505
Platform and Infrastructure
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In a rare scenario, due to timing issues, the Packet Forwarding Engine (PFE) crash is observed on Junos EX4300 platforms. This causes traffic loss until the PFE comes up. PR1720219
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On Junos EX4300-24T/24P when the native CVLAN (Customer Virtual Local Area Network) ID is configured for Q-in-Q setup, the traffic for that particular VLAN gets dropped even if the knob "input-native-vlan-push" is configured. This issue is encountered when the when inner-tag matches 'native-vlan-id' irrespective of the outer tag. PR1722284
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runt, fragment and jabber counters are not incrementing on EX4300-MPs. PR1492605
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On EX2300, EX3400,:EX4300-48MP and EX4300 devices, the pause frames counters does not get incremented when pause frames are sent. PR1580560
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When the remote end server/system reboots, QFX5100 platform ports with SFP-T 1G inserted may go into a hung state and remain in that state even after the reboot is complete. This may affect traffic after the remote end system comes online and resumes traffic transmission. PR1665800
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On the EX4600 device with SFP-LX10/SFP-SX, after a power cycle/software reboot, all ports are initialized and links are up with auto-negotiation enabled. Few ports are up and traffic flows whereas few ports are up but no traffic flow through them. PR1672583
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When the beacon LED for a port is configured as OFF, output of 'shot chassis led' incorrectly shows it as GREEN instead of OFF. When the beacon LED for a port is configured as ON, output of 'shot chassis led' incorrectly shows it as GREEN instead of 'GREEN Blinking'. Physical LED behavior reflects correctly as per beacon configuration. PR1697678
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EX4600 with Redundant Trunk Group (RTG) configured, after VCP port between members of EX4600 disconnect and connect again. Mac address entry created in RTG cannot ageout. PR1707878
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When high number of MACsec sessions present (more than 200) and traffic is passed over these interface, some of the MACsec session flap and there is traffic drop. PR1709431
Virtual Chassis
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On Junos EX4600 Virtual Chassis (VC), the primary Routing Engine reboot and all-members reboot lead to the PFE Manager hogging logs when SFP-T pluggable is installed in. The PFE Manager hogging logs has no functionality impact. PR1685067
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On EX4600-VC, when the
request system reboot all members
command gets executed, post-reboot one of the VC member/Flexible PIC Concentrator(FPC) might disconnect and join the VC back due to Packet Forwarding Engine (PFE) restart. Traffic loss is seen when FPC is disconnected. PR1700133