Open Issues
Learn about open issues in this release for QFX Series switches.
For the most complete and latest information about known Junos OS defects, use the Juniper Networks online Junos Problem Report Search application.
Platform and Infrastructure
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On a PTX Series router or QFX10000 switch with a third-generation FPC, an error message is displayed when the FPC goes online or offline. PR1322491
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QFX10K: Source MAC and TTL values are not updated for routed multicast packets in EVPN-VXLAN PR1346894
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You can observe a timing issue when the sxe interface start (regarding i40e driver). You can be recover this state by rebooting the complete board. PR1442249
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storm-control does not rate-limit ARP packets on QFX10K although shutdown action works PR1461958
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VXLAN VNI (multicast learning) scaling on QFX5110 traffic issue is seen from VXLAN tunnel to Layer 2 interface. PR1462548
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When running the
show pfe filter hw filter-name filter name
command, the command fails to retrieve the PFE programming details of the filter. PR1495712 -
The issue occurs if you try to call delete for one family and add/change for another family with a higher number of filter terms which requires either expansion of the filter or creation of a new filter on a fully scaled system where different families of CLI filters utilize all the slices. The Packet Forwarding Engine fails to add the new filter as we are getting messages out of sequence. It means the add/change of filter is called earlier than the delete of another filter that will free up the slices. PR1512242
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MSDP sessions might reset after a GRES reset even when nonstop routing (NSR) state is synchronized and ready for switchover PR1526679
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The "Socket to sflowd closed" error comes up when the ukern socket to sflowd daemon (server) is closed. The error rectifies itself as the client successfully reestablishes the connection in the subsequent attempts. When these errors are consistent, it indicates a communication issue between sflowd and the sFlow running on the FPC. PR1538863
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EVPN-VxLAN: vmcore generates core file on master and backup Routing Engine of QFX10k8 with Layer 2/Layer 3 multicast configuration. PR1539259
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100G AOC from Innolight does not comes up after multiple reboots.It recovers after interface enable/disable PR1548525
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Users cannot subscribe to any path that ends with "key". PR1553534
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5M DAC connected between QFX10002-60C and MX2010 doesn't link up. But with 1M and 3M DAC this interop works as expected. It is to be noted QFX10002-60C and ACX Series routers or traffic generator the same 5M DAC works seamlessly. There seems to be a certain SI or link level configuration on both QFX10002-60C and MX2010. It needs to be debugged with the help from hardware and SI teams and resolved. PR1555955
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In Release 20.2, some features will show up as a licensed feature. Customers might see alarms, commit warnings and "show system license" output as below. However, there would be no functional impact. PR1558017
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On the QFX5120 line of switches, amber LEDs are displayed for the fan modules after upgrading to Junos OS Release 20.2R1. PR1558407
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To avoid the additional interface flap, interface hold time needs to be configured. PR1562857
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Starting in Junos 21.1R1, Junos will be shipping with python3 (python2 is no longer supported). In ZTP process, if a python script is being downloaded, please ensure the python script follows python3 syntax (there are certain changes between python2 and python3 syntax). Also, so far (ie until 20.4R1), the python script had #!/usr/bin/python as the first line (ie the path of the python interpreter). The same needs to be changed to #!/usr/bin/python3 from 21.1R1. PR1565069
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The chassisd logs floods with "pic_create_ifname: 0/0/0 pic type F050 not supported" messages for every connected port. The flooding might happen every few seconds. PR1566440
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BUM traffic replication over VTEP is sending out more packets than expected. There seems to be a loop also in the topology. PR1570689
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When soft loopback port and analyzer configurations are committed together, hardware might not get programmed with the analyzer. This issue is not seen when physical loopback is used to achieve the same. PR1581542
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When physical loopback is used and both the ports are with EP style in the same RSPAN VLAN, it might lead to flooding. PR1581876
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RPD core file is seen @rt_iflnh_set_nhid. Core file is due to assertion caused by failure of hbt_insert for nhid belonging to a logical interface. It is seen that there is a duplicate entry present which causes the hbt_insert failure. PR1588128
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'input ingress' and 'input egress' together for the same port will not work in mirroring with VXLAN encapsulation. PR1589854
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On QFX5k with EVPN-VxLAN, the dcpfe core may be observed in one of the LEAF device in steady state after performing 'clear ethernet-switching table' on remote SPINE device in. PR1593950